iowa statewide interoperable communications system 9-1-1 … · 2020. 10. 16. · public safety...
TRANSCRIPT
Iowa Statewide Interoperable
Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and
Analysis Report
January 23, 2012
Public Safety Consulting, GIS, and Software www.geo-comm.com
Contents
Executive Summary ..................................................................................................................... ES-1
Overview ............................................................................................................... ES-1
Governance ........................................................................................................................................... ES-1
Funding ................................................................................................................................................... ES-2
Network ................................................................................................................................................ ES-3
PSAP Structure and Workload ......................................................................................................... ES-5
Technology and Interoperability ...................................................................................................... ES-6
Similar State Studies ............................................................................................................................ ES-8
Data Report Card ................................................................................................................................ ES-8
Conclusion ............................................................................................................................................. ES-9
Section 1: Governance Analysis ............................................................................................... 1-1
Iowa 9-1-1 Governance Overview .................................................................................................... 1-1
Current Legislation and Regulatory Framework ............................................................................ 1-2
Current Support Structure ................................................................................................................. 1-4
Summary .................................................................................................................................................. 1-7
Section 2: Analysis of Current Funding Methods, Formulas, and Models ........................... 2-1
Overview of Funding Methods ........................................................................................................... 2-1
Conclusions ........................................................................................................................................... 2-10
Appendix A ........................................................................................................................................... 2-11
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report
Public Safety Consulting, GIS, and Software www.geo-comm.com
Section 3: Analysis of Current 9-1-1 Networks (Wireline and Wireless) ............................ 3-1
Iowa Network - Assessment and Analysis ............................................................ 3-1
Analysis of Two Networks .................................................................................................................. 3-1
Network Outages .................................................................................................................................. 3-7
Conclusions ........................................................................................................................................... 3-18
Section 4: Analysis of Current PSAP Structure and Workload ........................................... 4-1
Analysis of Current 9-1-1/PSAP Environment - Wireline and Wireless .................................. 4-1
9-1-1 Workload Assessment .............................................................................................................. 4-2
Analysis of Staffing Considerations .................................................................................................... 4-3
Analysis of PSAP Training .................................................................................................................... 4-6
Industry Training Standards ................................................................................................................. 4-7
Further Training Considerations ........................................................................................................ 4-7
Conclusions ............................................................................................................................................. 4-8
Section 5: Radio Technical Analysis ........................................................................................ 5-1
Analysis of Radio Technology Systems ................................................................. 5-1
Radio Frequency Band .......................................................................................................................... 5-1
Modulation Methods ............................................................................................................................. 5-2
System Ownership ................................................................................................................................ 5-4
Narrowbanding ...................................................................................................................................... 5-5
Mobile Data ............................................................................................................................................. 5-5
System Configuration............................................................................................................................ 5-7
Conclusions ............................................................................................................................................. 5-7
Radio Interoperability Analysis ............................................................................ 5-10
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report
Public Safety Consulting, GIS, and Software www.geo-comm.com
End User Interoperability .................................................................................................................. 5-10
PSAP Interoperability .......................................................................................................................... 5-11
Interoperability Agreements ............................................................................................................. 5-12
Mobile Data Interoperability ............................................................................................................. 5-14
Conclusions ........................................................................................................................................... 5-15
Section 6: Analysis of Similar Studies ..................................................................................... 6-1
Analysis of Other State Studies .......................................................................................................... 6-1
North Carolina E9-1-1 Funding .......................................................................................................... 6-1
Indiana Statewide E9-1-1 Plan ............................................................................................................. 6-3
Michigan Next Generation Feasibility Study ................................................................................... 6-6
Summary ................................................................................................................................................ 6-10
Section 7: Data Report Card .................................................................................................... 7-1
Overview .................................................................................................................. 7-1
Status of Public Safety GIS Data ......................................................................................................... 7-1
Maintenance of Existing Data .............................................................................................................. 7-3
Data Report Card Summary ............................................................................................................... 7-3
Centerline Review ................................................................................................................................. 7-4
ALI to MSAG Comparison .................................................................................................................. 7-5
ALI to Centerline ................................................................................................................................... 7-5
ALI to Address Points .......................................................................................................................... 7-7
Analysis Results by Jurisdictions ............................................................................ 7-9
Pocahontas County ............................................................................................................................... 7-9
City of Sioux City ................................................................................................................................ 7-11
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report
Public Safety Consulting, GIS, and Software www.geo-comm.com
City of Des Moines ............................................................................................................................. 7-13
Black Hawk County ............................................................................................................................. 7-15
City of Ames ......................................................................................................................................... 7-17
Washington County ............................................................................................................................ 7-19
Next Generation Standards ................................................................................. 7-22
GIS Data Layers ................................................................................................................................... 7-22
Attribute Fields ..................................................................................................................................... 7-23
Public Safety Consulting, GIS, and Software www.geo-comm.com
Executive Summary
Overview
There are numerous complex issues involved in conducting an analysis and assessment of public safety
communications systems to achieve a comprehensive feasibility study of any state’s 9-1-1 system.
GeoComm has conducted an analysis of the current 9-1-1 system in the State of Iowa to provide a
comprehensive study detailing the strengths and weaknesses of the current Iowa program. Throughout the
assessment process, GeoComm identified and documented findings and conclusions related to the 9-1-1
environment and public safety communications interoperability throughout the state. During this task and
as there is a transition into the Draft Recommendations Report, GeoComm continues to review, survey,
interview, and conduct further analysis as needed to refine and clarify data and develop sound and practical
recommendations for the State of Iowa.
Governance
The governance for Enhanced 9-1-1 (E9-1-1) services in Iowa is different for wireline E9-1-1 and wireless
E9-1-1 and responsibilities for managing and establishing surcharge levels to pay for the service are split
between local and state government. As such, there is no single repository for information about the
overall “9-1-1 system” or operations, limited coordination of services, and not a single control point for
managing the overall costs of 9-1-1.
Because of this bifurcated service provisioning and management model, the resulting lack of and
opportunity for state policy makers to have a clear view of how 9-1-1 is managed, how it is paid for, what it
costs to operate, and what consistent service standards are followed make it difficult to establish and enact
effective governance policy and to manage costs.
In 2010, the state E9-1-1 Program Office proposed legislative modifications to update the language in the
legislation to bring the law related to E9-1-1 service more in line with current technology and regulations.
This proposed legislation is important for three reasons. First, the proposed changes are necessary to the
state’s ability to move forward with Next Generation 9-1-1 (NG9-1-1) services by updating language and
correcting outdated technical references which will allow the state to use 9-1-1 funding for the elements
and components of NG9-1-1 services. The second reason why pursuit of the proposed 2010 modifications
is important to the state and local PSAPs is that the changes sought to broaden the use of 9-1-1 surcharge
funds to include enhanced services such as mass notification systems and better prepare the state for
coordination of large scale events. Finally, the 2010 legislative initiative sought to equalize surcharge
revenues for all communications service types and eliminate wireless carrier reimbursement no longer
required as determined by the Federal Communications Commission (FCC). This change could help to
provide additional funding for E9-1-1 enhancements.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm finds that more collaborative methods for addressing the concerns of local agencies and for
NG9-1-11 planning and implementation will be required. A more integrated and coordinated approach will
be essential to sustaining the high quality of E9-1-1 service in Iowa E9-1-1 and that will require all parties,
local and state, service provider and policy maker to commit to more inclusive and participatory
governance.
Funding
Another issue facing Iowa is the decline of wireline E9-1-1 surcharge revenues as levied by many of the
county-based Joint E9-1-1 Services Boards. For every landline telephone that is disconnected so that a
subscriber can save money and revert to just using their cell phone for service, all of the 9-1-1 surcharge
that the county was expecting evaporates and that subscriber only pays his cell phone 9-1-1 surcharge,
which goes directly to the state.
GeoComm has evaluated the level of funding that both wireline and wireless surcharge revenues contribute
to the local agency’s 9-1-1 budget and the state E9-1-1 Program as a whole. More than 80 percent of the
PSAP budgets require other (non-surcharge) revenue to meet budget requirements. It is also evident from
the data provided that wireline revenues continue to decrease at an increasing rate. The fiscal year 2011
revenue estimate was approximately six percent less than 2010 and eight percent less than in 2009. The
wireline surcharge accounts for approximately 80 percent of total revenue the PSAP has available for the
operational budget. In contrast, wireless revenues continue to increase but at an ever decreasing rate.
Over the past three fiscal years, 2008-2010, revenues from wireless surcharge grew by 5.4 percent in 2009
but only 4.9 percent in 2010. The wireless surcharge accounts for approximately 20 percent of total
surcharge. Fortunately, total PSAP E9-1-1 expenditures over the same three year period studied are
relatively flat.
County boards have both designated and undesignated 9-1-1 carryover budget line items and are allowed a
carryover operating surplus of 25 percent of the annual 9-1-1 budget without lowering the wireline
surcharge rate. Designated carryover funds are for projected capital expenditures for future 9-1-1 public
safety related projects. Many of the boards appear to carry a substantial designated fund reserve.
Up to 21 percent of the collected 9-1-1 surcharge funds are designated to reimburse wireless carriers
for expenditures associated with the provision of E9-1-1 services and for 9-1-1 service provider
network connectivity cost reimbursement and also third party database management system
reimbursement. Twenty-five percent of the collected funds are distributed to county Joint E9-1-1
Service Boards to supplement their annual budgets. The remainder of the collected funds is to be used
for the enhancement of PSAP upgrades and improvements.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm identified the following trends with regards to wireless revenues received and expended by the
State of Iowa.
The state expenditure for wireless cost recovery expenditures averages close to 16 percent of the
available funds rather than the 21 percent authorized by statute
The network, database, and selective routing costs associated with the wireless 9-1-1 system
require close to 40 percent of the available funds
The PSAP disbursement is 25 percent of the available funds
The state provides an average of 81 percent of its quarterly surcharge revenues for the provision of
enhanced wireless 9-1-1 services, leaving close to 19 percent available to increase the carryover funds.
Given the structure 9-1-1 services in the State of Iowa, its funding mechanisms, and the decline of surcharge
revenues, GeoComm finds that the current 9-1-1 surcharge model will not sustain the current level of
9-1-1 services across the state and for the long-term. GeoComm finds that the state and local jurisdictions
need to consider several options for mitigating the decline of funding. Joint E9-1-1 Service Boards should
explore methods for reducing the costs to provide E9-1-1 services in their communities including but not
limited to sharing technology or infrastructure as well as combining PSAPs or other local cost sharing
efforts.
As proposed in the last legislative session, the state should consider increasing the wireless surcharge to a
maximum of $1.00 to match the wireline maximum. The 53 percent increase in surcharge revenue would
alleviate strain on local governments funds required to sustain E9-1-1 services. This could increase the
amount provided to county 9-1-1 boards to operate E9-1-1 services in their jurisdiction. In addition, the
state should consider modifying the formula for distribution of wireless funds and removing cost recovery
for carriers and service providers.
Network
One of the areas that GeoComm was requested to assess was the impact of the two network
infrastructures and other cost aspects related to the large number of Public Safety Answering Points
(PSAPs) operating in the state. In an effort to evaluate the total costs of 9-1-1 service today, GeoComm
reviewed the information regarding specific aspects of the current environment at the 18 study PSAPs.
Unfortunately, some of the selected PSAPs did not or could not provide call data, which hampered our
ability to conduct a comprehensive assessment.
Network standards, outlined in state law, are generally related to current technology and processes, and
these standards are voluntary. The standards will need to be modified for Next Generation services.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm found that network infrastructure Best Practices are not thoroughly understood by many of the
PSAPs in Iowa.
There are opportunities to improving the understanding of network standards and best practices among
PSAPs. Redundancy and diversity methodology education can be useful to make useful decisions at the local
level to improve continuity of operations, and conditional routing plans for the PSAP provide a further
opportunity for improvement. In addition, how to assess E9-1-1 grade of service and the ability at the local
level to produce meaningful statistics and reports of call volume, activity by hour of the day and day of the
week, call duration times, speed of answer, and abandoned call rates can assist the PSAP Manager by
providing useable statistical information to evaluate scheduling, training, and related issues.
It was also evident that the number of wireline trunks configured to the individual PSAPs may not be based
on empirical data which defines adequate access to 9-1-1 while maintaining the industry accepted service
threshold of P.01 grade of service.
GeoComm found that PSAPs reported the need to transfer wireline E9-1-1 calls to neighboring PSAPs.
The neighboring PSAPs may be served by a different wireline selective router (if they are served by any
9-1-1 selective router at all) or may even be in a different state. PSAPs should carefully evaluate the call
transfer process and consider efforts to maximize service by minimizing the need to repeat call detail
information to PSAPs that share service area or borders with other states. This may mean enhancing
connectivity to more than the selective router they are currently connected to; or it may mean additional
connectivity between selective routers.
There are many single points of failure risks within the Iowa network. Wireline selective routers are not
interconnected; there some PSAPs still direct trunked which means they are not connected to any selective
router; and there is limited redundancy or diversity which increases the risks if an end office serving the
PSAP becomes isolated leaving the PSAP vulnerable and unable to adequately serve its constituents. For
wireless, there is a single selective router serving the 9-1-1 needs within the entire state, and there is no
back up or interconnectivity for that selective router in the event of a service disruption.
In order to reduce 9-1-1 outage potential or service interruptions, risk management and mitigation planning
for emergency services requires significant advanced considerations and potential expense to the state or
local 9-1-1 authority; however, it is a legitimate consideration in comprehensive planning efforts and should
be encouraged.
The State of Iowa, PSAPs, and the elected/appointed officials with authority regarding enhancing the current
level of 9-1-1 services (including transport, connectivity, and delivery of all approved information) will need
to cooperatively develop and adopt modified language in all E9-1-1 related service tariffs. GeoComm
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
further encourages, as part of the analysis of this report, a continued active dialogue among stakeholders of
both wireline and wireless 9-1-1 networks.
Managing the migration to NG9-1-1 requires a high degree of coordination and collaboration. Whether the
state and local jurisdictions continue with the status quo, or seek improvements to management and
operations within the current structure or advance the implementation of Next Generation services, it is
important that the decision makers remain focused on E9-1-1 customer service, responder safety, and
effective resource management. The resources necessary to support the current PSAP configuration are
substantial and efforts to better control such costs are reasonable and appropriate.
PSAP Structure and Workload
From a PSAP operational and call answering perspective, there does not seem to be a negative impact of
the two networks. The existence of two networks is largely transparent to PSAP operators.
In nearly half of the agencies GeoComm visited, dispatch personnel were tasked with a variety of other
duties such as jail duties that required them vacate a position at times to go into the jail, leaving the 9-1-1
telephones and police radio unattended for short periods of time. This procedure creates a liability for the
PSAP, presents an officer safety concern, and suggests potential service performance vulnerabilities.
Despite a variety of data collection approaches, GeoComm found it difficult to obtain complete and
detailed information from the data collection tools and even the on-site observations and interviews. The
ISICS Feasibility Study Project Team is aware of the data collection issues, and that these issues have
challenged our ability to conduct a fully comprehensive assessment and analysis.
Throughout GeoComm’s interviews with participating PSAPs, many PSAP Managers expressed that staffing
does not appear to be a serious issue. That might appear an accurate assessment on the surface.
However, further evaluation reveals that no standardized process to determine appropriate staffing levels in
the PSAPs is being consistently used. Although staffing levels may seem to be appropriate at many agencies,
the current methodology used to determine these levels, if one is employed at all, may not produce
accurate results.
Without a comprehensive and current evaluation of staffing needs that is based on industry accepted
standards, the PSAP is guessing at the appropriate staffing levels. The belief that the PSAP is either
adequately staffed or understaffed is not based on any quantifiable or validated data and may not be able to
be substantiated should the PSAP be called upon to do so either because of a service complaint or legal
issue.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
There is an attempt to ensure that all Iowa 9-1-1 telecommunicators /dispatchers) receive basic training in
the fundamentals of call interrogation, call processing, and general dispatching guidelines.
Iowa legislation requires that telecommunicators receive 40 hours of basic telecommunicator training
within the first year of employment.
The legislation also requires that eight hours of continuing education training be provided as well. The 40-
hour course requirement is being met by all of the PSAPs GeoComm visited. Some PSAP training
managers; however, expressed concern over the content and consistency of the classes offered by the state
academy.
In GeoComm's sampling of 18 PSAPs two key items from the APCO/NENA American National Standards
PSAP Service Capability Criteria Rating Scale were utilized. This standard was developed to assist PSAP
managers and their governing authorities in identifying current level of service capability. The initial focus of
this rating scale was to rate a PSAPs’ day-to-day operations as well as survivability during terrorist attacks,
natural disasters, health emergencies, and other major incidents.
GeoComm also found that Emergency Medical Dispatch (EMD) is provided by most PSAPs in Iowa. 67
percent of the 18 sample PSAPs GeoComm observed were providing EMD.
Technology and Interoperability
Agencies across the State of Iowa today use multiple radio systems for daily operations. Those systems
provide adequate to good coverage of local jurisdictions, with little ability for the end user to operate in a
normal, day-to-day mode outside the local system. Car-to-car and scene of action local channels exist in
almost every end user radio and allow some communications when well outside the normal system.
However, these channels are not intended for extended operation or communication with a local dispatch
center.
VHF radio systems are by far the most prevalent public safety systems in Iowa. Even where other systems
exist, the backup and interoperable systems are VHF. Most PSAPs are able to communicate on the
nationally recognized fire and law enforcement VHF interoperability channels. PSAPs and other fixed
locations are usually limited to a single law and single fire channel, while mobiles and portables are typically
programmed with the primary service channels for surrounding jurisdictions.
Most agencies in the state are actively moving to meet the FCC December 31, 2012, deadline to complete
narrowbanding for VHF and UHF radios. Those agencies are aware of State of Iowa plans and schedules to
narrowband state radios and have made a concerted effort to synchronize local narrowbanding with state
agency narrowbanding.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
State agencies that are responsible for moving their own radios to narrowband must be aware that local
agencies are indeed working to stay synchronized and must also take a proactive role to keep all local
agencies informed of any changes to the currently published narrowband plans.
Along with the narrowbanding requirement, many agencies across the country are considering moving from
analog to digital modulation. There are several factors favoring moving to digital radio. First, the physics of
moving from wideband to narrowband operation usually means a loss of effective voice range for any given
radio system. When that loss occurs within the primary coverage area of the user agency, some measures
may be required to regain the lost coverage, where applicable.
On any given system, with no other system changes such as tower additions or height adjustments, a digital
signal will normally have a greater effective clear voice range than analog. This allows the system user to
regain most or all the useful range lost by narrowbanding.
With nearly 40 percent of Iowa PSAPs currently able to use some form of digital communication the public
safety community in the state has demonstrated a desire to move in this direction. GeoComm expects this
percentage to grow as more agencies take advantage of federal grant programs requiring the purchase of
Project 25 (P25) digital capable radios.
Beyond voice communications the exchange of data to and from mobile units is becoming commonplace in
public safety. The entire national broadband movement is based on this desire to provide a truly
nationwide, seamless system of data exchange. That broadband system does not yet exist, yet more than a
third of Iowa agencies have some local mobile data capability. Today that capability is based almost entirely
on the use of commercial systems. As the national broadband system becomes a reality, and as the growing
federal regulatory movement encourages the transitions of these systems, we can expect Iowa users and
many others to transition to that higher speed, more robust system.
The state of both voice and data radio communications across the State of Iowa, it is well structured to
provide good local coverage for agencies and PSAPs. Local end users generally have the ability to
communicate with their immediate neighbors, but have limited capability to interact with agencies from
beyond that range. PSAPs generally do not have remote backup facilities that would allow radio dispatch
operations should the local PSAP become incapacitated.
Mobile data exchange beyond the local member agency is essentially non-existent. Data systems today are
generally application specific and depend on full user registration and a common over the air
communications system.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
Similar State Studies
There is value in studying and analyzing what other states have been doing in order to compare and
contrast Iowa’s specific issues. How other communities or states have addressed funding, standards,
legislative reform and NG9-1-1 planning can serve to validate Iowa’s own efforts or to provide new insight
and offer alternatives the state might not have considered.
In this report, GeoComm has reviewed recently conducted studies in three states similar to Iowa, North
Carolina, Indiana, and Michigan. The similarity may be in the issues that the state faces, the size and
complexity of the state structure, and/or the approach to dealing with current issues. These states were
selected specifically for their similarity to Iowa in one of the areas listed above, or because of their unique
approach.
Data Report Card
Accurate data has always been highly important to 9-1-1 and public safety response. As PSAP and E9-1-1
service transitions into NG9-1-1, the importance of having accurate Geographic Information Systems (GIS)
increases dramatically. GIS plays a critical role in the validation of location information and routing of 9-1-1
emergencies into the correct PSAP under a NG9-1-1 model. Therefore, the importance of highly accurate
GIS data for local and surrounding areas is critical.
The ISICS Board study called for the six areas to receive an in-depth analysis of their public safety GIS data.
The following areas were determined to be appropriate for the study:
Urban – City of Des Moines, Polk County; City of Ames Police Department, Story County; and
Sioux City in Woodbury County
Rural – Pocahontas, Washington, and Black Hawk County
The analysis process used in the study follows NENA standards outlined in Synchronizing GIS with MSAG &
ALI, approved September 8, 2009. The analysis called for a review of three main databases, GIS data layers,
Automatic Location Identification database (ALI), and Master Street Address Guide (MSAG). In addition,
GeoComm did an independent analysis on the street centerline prior to testing the ALI database against
the layer. The analysis process related to the NENA specifications for a street centerline data layer being
used for public safety.
Individual results for the six study PSAPs are included in this report.
In future 9-1-1 systems, GIS data will be taking the place of the MSAG data that is being used today.
Accurate and complete GIS data is a requirement based on the elevated use of GIS in a Next Generation
environment.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report ES-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
The centerline data is the most common GIS data layer used in public safety and was the main layer
analyzed for this study. The results show that 15 counties do not have access to the basic public safety GIS
layer. The centerline from the six study areas show 20 percent of data as a whole has spatial or attribute
issues that should be reviewed. Synchronization testing of the centerline and sampling of over 60,000 ALI
records was over 85 percent.
Conclusion
GeoComm is confident that this report provides the ISICS Board and the 9-1-1 Council with a
comprehensive assessment and analysis of 9-1-1 and interoperability within the state. The information
gathered thus far in the Existing Conditions Report, coupled with this assessment and analysis will be the
basis for development of potential options for the future of public safety communications for the State of
Iowa.
Public Safety Consulting, GIS, and Software www.geo-comm.com
1
Governance Analysis
Iowa 9-1-1 Governance Overview
The structure of 9-1-1 governance and oversight in the State of Iowa is somewhat unique in that one has to
view two separate structures to understand the Iowa 9-1-1 system. The state has established a two tiered
approach to managing 9-1-1 services. As GeoComm established in the Existing Conditions report, wireline
9-1-1 is addressed and managed at the local level through individual county Joint E9-1-1 Services Boards (on
behalf of their local PSAPs). The local authorities contract for and manages wireline 9-1-1 in an
independent and specifically local manner. In the case of Iowa, this means essentially a multitude of
different ways the systems are dealt with using a complicated and disparate network of five geographically
diverse wireline Enhanced 9-1-1 (E9-1-1) selective routers which are not interconnected. This structure
can be just as complex and costly for the 9-1-1 service provider as it is for the PSAP. Each of the individual
county Joint E9-1-1 Service Boards are authorized through the statute1 to set their own 9-1-1 surcharge fee
within defined parameters. Because of this structure, there are potentially as many different billing
processes for a service provider as there are Joint E9-1-1 Service Boards. This causes a multitude of
disbursement responsibilities, all of which add cost to the service.
Wireless 9-1-1 services are managed in a coordinated manner at the state level by the E9-1-1 Program
Office of the Homeland Security and Emergency Management Division (HSEMD). The E9-1-1 Program
Office determines the wireless 9-1-1 surcharge level (as guided by state law) and the routing and required
network elements, collects the revenues and pays the bills associated with the wireless 9-1-1 network. All
wireless 9-1-1 calls are switched through one selective router location and passed through the network to
the appropriate destination PSAP based on the location of the cell tower through which the 9-1-1 call was
initially processed. The six state patrol dispatch facilities are managed in a coordinated way through the
Iowa Department of Public Safety and receive transferred wireless 9-1-1 calls from primary local PSAPs
throughout the state.
Because the governance and responsibilities are both divided between local and state government within
the present structure, there is no single repository for information about the 9-1-1 system or operations,
no coordination of services, nor a single control point for managing the overall costs of 9-1-1.
1 Chapter 34A, Iowa Code
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
Current Legislation and Regulatory Framework
Overview
In the 2010 legislative session, a number of significant changes and modifications to the statute pertaining to
9-1-1 services were proposed but the legislation was not enacted by the end of the session. The proposed
2010 modifications are important for three reasons.
First, the modifications are directly related to the state’s ability to move forward with Next Generation
9-1-1 (NG9-1-1). The changes would update the language and correct outdated technical references that
may be open to interpretation of the state’s ability to use 9-1-1 funding for the components of NG9-1-1
services.
The second reason why pursuit of the proposed 2010 modifications is important to the state and local
PSAPs is that the changes sought to broaden the use of 9-1-1 surcharge funds to include enhanced services
such as mass notification systems and better prepare the state for coordination of large scale events.
Finally, the 2010 legislative initiative sought to equalize surcharge revenues for all communications service
types and eliminate wireless carrier reimbursement which is no longer required as determined by the
Federal Communications Commission’s (FCC’s) “King County” ruling.2 The FCC initially required that a
cost recovery mechanism be in place for both the wireless carrier and the PSAP before the carrier would
be obligated to deliver wireless E9-1-1 service. In what is now known as the “King County” ruling, the
FCC stated that disputes about cost recovery had become a significant impediment to the implementation
of wireless E9-1-1 and eliminated the carrier cost recovery requirement but not the PSAP cost recovery
requirement. The clarification that came out of this ruling established a demarcation point within the
wireless E9-1-1 system for distribution of cost responsibility between the PSAP and wireless carriers.
In addition to the legislative initiative that began in 2010, GeoComm assessed several other elements of the
legislative and regulatory framework in Iowa.
Tariffs - Because of the structure under which 9-1-1 services in Iowa have been established and the
rates and charges permitted by the Iowa Public Utilities Commission through its regulatory process,
the 9-1-1 service provider tariff mileage charges are high. Mileage charges occur because the
selective routers are not within close proximity to the PSAP and the 9-1-1 service provider must
transport the voice and data elements of the 9-1-1 call over long distances. There is a process
followed by the Iowa Public Utilities Commission for reviewing the tariff and company authorized
rate of return and if appropriate adjusting rates.
2 FCC Docket Number 94-102, Order on Reconsideration, Revision of the Commission’s Rules To Ensure
Compatibility with Enhanced 911 Emergency Calling Systems, Request of King County, Washington, adopted May 14,
2002
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
E9-1-1 Service Plan - Current state law requires a local E9-1-1 Service Plan be established,
containing specific information about 9-1-1 services in the jurisdiction, and that the Plan is
“maintained” by the Joint E9-1-1 Service Board in the local jurisdiction. However, there is not a
clear understanding of what “maintained” means in the legislation or in state rules. It is implied that
whenever an element required in the Plan changes (such as costs, number of trunks, members of
the Joint E9-1-1 Services Board, etc.) then the Plan should be updated and resubmitted to the state
E9-1-1 Program Manager for approval.
Notice of plan modification is supposed to be provided to all public safety agencies serving in the
jurisdiction and all providers in the jurisdiction. Operationally and historically; however, that has
not been done. There is a concerted effort underway by the E9-1-1 Program Office to request
updates to the local E9-1-1 Service Plans. A template for Plan updates has been developed and is
available on the department website.3 This template and instructions should be of significant
assistance to local Joint E9-1-1 Service Boards. Compliance with the request to update the local
E9-1-1 Service Plans appears to be on a voluntary basis and without clear direction in rules or legal
interpretation.
State Role in Oversight and Management of Entire 9-1-1 System - The state E9-1-1 Program Office,
as we have noted, focuses only on wireless 9-1-1 service and has oversight authority over this one
element of service in the state. The result of this limited responsibility is that state and local policy
makers do not have the full picture of 9-1-1 operations, service levels, or costs in Iowa. In addition,
the Iowa legislature cannot obtain a full understanding of how much 9-1-1 costs in its current
configuration or the impact of the current 9-1-1 structure. The state does not require local
entities to produce information that would provide a clear view of operations, and unless local
entities are compelled to produce information, a clear view of operations is not readily available.
Information and statistics about call volume, operational costs, network connectivity, or service
provided is essential data for policy makers to make informed decisions.
Public Utilities Commission - The Iowa Public Utilities Commission’s role is limited and appears
to only deal with approval of tariff rates for services. There is a requirement that Competitive
Local Exchange Carriers (CLEC) register with the state but there are no requirements or
standards to assure that:
The local PSAP receives the proper revenue from service providers
The 9-1-1 service levels are commensurate with other providers
What is Working
Ability for a single entity to coordinate, manage, and oversee the entire wireless network
Ability for a single, statewide entity to manage all costs (collections and payments) for wireless
9-1-1 service
Locals required to submit annual budget to the state for that portion of the 9-1-1 surcharge
revenues they receive from the state
3 http://www.iowahomelandsecurity.org/programs/E_911.html
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
A mechanism is in place to record and document information that outlines how 9-1-1 services
function on a county-by-county basis within the state
What is Not Working
Fragmented oversight of 9-1-1 emergency communications networks as a whole
Complicated interaction with for service providers adds to costs
Limited service level standards and inconsistent service levels leads to unequal service being
provided to the people of Iowa
Quality assurance of some system elements may be difficult to conduct
Local E9-1-1 Service Plans are not “maintained”
Cannot report to the legislature on the “State of 9-1-1 in Iowa” as there is limited ability to have a
snapshot of all PSAP functionality and operations
Tariff costs may need to be reviewed in light of NG9-1-1 service elements and transport costs for
legacy system
Role of Iowa Public Utilities Commission is limited
Legislative language needs to be contemporized to prepare for Next Generation service and to
expand the state’s ability to implement next generation technology
Local budget submissions are limited to reporting how 9-1-1 wireless E9-1-1 surcharge revenue
funds are used therefore an overall view of what it costs to operate 9-1-1 is not available
Current Support Structure
Overview
Within the State of Iowa, there are essentially four different levels of boards or oversight organizations,
three statewide boards and 99 local boards all having authority and responsibility for specific elements of
the public safety emergency communications system. These include the state E9-1-1 Program Office of the
Department of HS/EM, the ISICS Board, the 9-1-1 Council, and the local Joint E9-1-1 Service Boards. The
question of how each of the four boards work together and how sharing of strategic plans is done or to
what degree coordination of planning activities is accomplished deserves assessment
State E9-1-1 Program Office - This office is largely focused on wireless 9-1-1 service within the
state. The activities of the office are well-coordinated, and the network and costs of the service
appear to be well managed. Migration to NG9-1-1 services is inevitable, the wireless network is a
logical transitional technology for Next Generation, and the state role in planning and advancing
Next Generation policy is essential. There is limited ability to assist locals with procurement
processes, which can lead to higher costs at a local level. The state E9-1-1 Program Office staff is
small and is limited in its ability to do much more than the current scope assigned to this office.
Because the office is advised by the 9-1-1 Council, coordination of activities between the state
E9-1-1 Program Office and the Council is conducted.
Iowa Statewide Interoperable Communications System Board (ISICSB) - The mission of the ISICS
Board is to implement, develop and oversee policy, operations, and fiscal components of
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
communication interoperability efforts at the state and local level and coordinate with similar
efforts at the federal level, with the ultimate objective of developing and overseeing the operation
of a statewide integrated public safety communications interoperability system.
While radio communications specifically is not mentioned in the mission, the focus of the ISICS
Board has been placed on radio communications with interoperability in radio communications
paramount. Statewide communications planning is conducted, with little control over local efforts.
After several years of planning and without legislative action to sufficiently fund a statewide system
the likelihood of a truly integrated and interoperable radio communications functionality statewide
is dim.
Emergency responders across the Nation are communicating more effectively during large planned
and emergency events because of the All-Hazards Type III communications Unit Leader (COML)
training program. The emergency response community identified the need for COML training, and
with DHS support, helped to create a formal program to train COMLs on operational and technical
aspects of communications and procedures to use during incidents. The COML Course offers
standardizing training and response. COML training has help jurisdictions to standardize their
planning for an incident so all responders are working off the same plan of action. The ISICS Board
has held several COML Courses since 2009 and will be sponsoring another in Dubuque in January
2012.
The ISICS Board is also involved in a number of training and exercise initiatives including table top
exercises looking at interstate interoperability with a Tri-State Planning Group comprised of Iowa,
Minnesota, and Wisconsin, In December 2010, the Tri-State Planning Group held an
interoperability briefing and table-top exercise focusing on interoperability for the three states and
covering a sixteen county area in northeast Iowa. A full-scale interoperability exercise was held in
2011, and another exercise is scheduled to be held in March of 2012.
In 2011, the ISICS Board acquired the CASM (Communications Asset Survey and Management) tool
to track interoperability and narrowbanding throughout Iowa. Forty-six other states are also using
this Department of Homeland Security tool.
The 9-1-1 Council - The mission of the 9-1-1 Council is to advise and make recommendations to
the Homeland Security and Emergency Management Division (HSEMD) Administrator and the state
E9-1-1 Program Manager related to the development and implementation of the state E9-1-1
system as described in Iowa Code 34.15 and the portion of 474.1 related to the Iowa Utilities
Board. The membership of the 9-1-1 Council is broad-based and representation from all aspects of
9-1-1 service in the state is provided for in the law.
Local Joint E9-1-1 Service Boards - While representation is generally prescribed in legislation, there
is inconsistent utilization of board function. Some local Joint E9-1-1 Service Boards are responsible
only for budget approval, while others are more integrally involved in policy and operational
decisions. The legislation only states that the Board is to maintain the E9-1-1 Service Plan and that
the Plan is to specify the method of and cost for implementing the E9-1-1 system.
9-1-1 Plans - Legislative intent is unclear; potentially excellent tool for state to be aware of
network implications; most present plans are useless; until recently, no model plan existed for
locals to follow to ensure all required components are included in a manner and format and
that is useful for comparison and reports to the legislature; some effort has begun on
requesting updated 9-1-1 Plans
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
Impact on Network(s) - Wireline networks are not integrated which limits functionality; limits
public safety ability to transfer calls where necessary for response
Impact on Costs - Potentially higher costs incurred because local planners do not understand
network engineering or the tariff
Number of PSAPs - The number of PSAPs operated by government, which today stands at 117
for 99 counties in Iowa, is a large number. The impact of this large number of PSAPs can be
seen in several areas: (1) local costs to operate and manage the PSAPs including staffing,
management, technology, and infrastructure costs, network connectivity and facility; and (2)
state costs related to administration, oversight, wireless trunking connectivity costs, and
accounting.
Communication - Communication between the state E9-1-1 Program Office and the PSAPs is
limited. In some cases, the PSAP may not be aware of state E9-1-1 Program Office activities or
how they might affect the PSAP. Local agencies need to be well informed of the activities and
function of the state office and should pay attention to information being released and shared
from that office. The state office should have mechanisms to obtain feedback and reaction
from the local agencies to help formulate solid and sustainable planning for collaborative efforts.
Lack of communication in both directions leads to misunderstanding and mistrust of what is
happening as it relates to 9-1-1 services and planning in the state. Misunderstanding and
mistrust lead to entrenched positions or reactions to situations that may or may not be real,
and contribute to a lack of cooperation.
What is Working
Statewide coordination of wireless 9-1-1 services
State acting as catalyst for NG9-1-1 planning, policy, and initial implementation
A legal process exists for documenting 9-1-1 elements on a PSAP by PSAP basis within the state
What is Not Working
Collaboration between state and locals is limited
Limited role of state E9-1-1 Program has led to lack of statewide coordination and fragmented
operations for wireline 9-1-1
State staff is small which limits the capability of the office
Carrier reimbursements are no longer required by the FCC; the state may be paying unnecessarily
for the service
Most local E9-1-1 Service Plans are not updated
Many PSAPs are not well educated on network elements and do not understand network
management
E9-1-1 traffic studies have not been conducted regularly; without traffic studies the local entity or
does not know if they are over or under trunked. The cost impact of over-trunking at the local
level, or the grade of service provided is unknown.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 1-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
Local authorities operate with minimal interaction with neighboring jurisdictions on 9-1-1; however,
there has been some regional efforts in radio systems integration and planning.
Standards for statewide coordination are not in place
Summary
In conclusion, while the State of Iowa governance structure has advantages and disadvantages, the dual
approach to managing 9-1-1 services in the state has resulted in service fragmentation. The inability of the
state policy makers to have a clear view of how 9-1-1 is managed, how it is paid for, what it costs to
operate, and what consistent service standards are followed make it difficult to establish and enact effective
governance policy and to manage costs. Future legislative efforts may need to consider a more integrated
and coordinated approach than has been needed in the past. The state can anticipate that this concept may
be met with acceptance by some who realize that the limited coordination of all 9-1-1 services may not
have been in the best interest of the Iowa public. In contrast, others may express concern that increased
coordination at the state level may lead to less control at the local level. Collaborative methods for
addressing these concerns will be required. NG9-1-1 will require increased state coordination in order to
be functionally effective.
Public Safety Consulting, GIS, and Software www.geo-comm.com
Overview of Funding Methods
As stated in the Existing Conditions Report, 9-1-1 services in the State of Iowa are funded through the
combination of wireline and wireless 9-1-1 surcharge funds and local, general revenue funds. Some state
grants from the wireless 9-1-1 emergency fund are also available to the county Joint E9-1-1 Service Board
for Public Safety Answering Point (PSAP) projects.
The 9-1-1 surcharge funds are collected on telephone bills of wireline and wireless telephone service
subscribers and prepaid wireless customers. In some cases a surcharge is paid by Voice over Internet
Protocol (VoIP) subscribers. Even though surcharge fees are collected from different technology
subscribers across the State of Iowa, the fees are levied, collected, and managed differently. To supplement
the surcharge fees in funding 9-1-1, PSAPs across the State of Iowa often utilize local general revenue funds
to fully fund emergency 9-1-1 services.
Wireline Surcharge Funding
In 1988, each county in the state was directed by statute to establish a Joint E9-1-1 Service Board (E9-1-1
Board or alternative legal entity under Chapter 28E of the Iowa Code) to develop a county-wide wireline
Enhanced 9-1-1 (E9-1-1) plan describing the services provided and the area served, and establishing the
means for providing and funding the system. The major funding resource for the systems was the wireline
9-1-1 surcharge fee. The wireline surcharge fee was authorized by a voter referendum for each E9-1-1
Board jurisdiction with a fee of up to $1.00 per month per telephone access line. In the same manner, the
voters can approve a fee of up to $2.50 per month for an initial 24 month period. Currently there are 81
counties in Iowa with a $1.00 per month surcharge. Fifteen counties have a fee of less than $1.00 and two
counties have a fee of greater than $1.00. Scott County is the only county that does not have a local
wireline surcharge fee. However, they are funding their PSAP and 9-1-1 system via a property tax levy
under a 28E Agreement implemented by their County Emergency Management Agency.
The wireline surcharge fees are collected monthly by the carriers and remitted quarterly to the Joint E9-1-1
Service Boards for deposit into their respective E9-1-1 service funds. The carriers are allowed to retain
one percent of the gross surcharges collected as compensation for the costs of billing and collection of the
fee. Each county E9-1-1 Board establishes the surcharge rate within the constraints of the statute and the
voters’ approval as part of its annual budget filed with the state 9-1-1 Program Manager and Iowa
Department of Management (DOM). Money deposited in their E9-1-1 service fund may be used for the
provision of enhanced emergency communications services through the payment of recurring and
nonrecurring costs such as network equipment, software, database, addressing, initial training, other start-
up, capital, and ongoing expenditures.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
E9-1-1 surcharge funds are to be used only to pay costs directly attributable to the provision of E9-1-1
telephone systems and services and may include costs for portable and vehicle radios, communication
towers and associated equipment, and other radios and equipment permanently located inside the Public
Safety Answering Point (PSAP).1 Surcharge funds may not be used for personnel costs associated with
PSAP operations but may be used for personnel costs associated with database management.
The county Joint E9-1-1 Service Board is authorized to maintain designated and undesignated carryover
funds, not to exceed 25 percent of its annual budget, without lowering the surcharge rate.
Wireless Surcharge Funding
In 1998, the state statute was amended to provide for the implementation and funding of E9-1-1 services
for wireless subscribers. The law provides for a maximum wireless surcharge fee of $0.65 per month per
subscriber telephone number. The fee is also applied to prepaid subscribers of wireless telephone services.
The maximum rate of $0.65 has been in effect since 2004. As opposed to sending the wireless surcharge
fees to each county E9-1-1 Board for deposit, wireless carriers are required to remit the funds directly to
the state for deposit into the State of Iowa E9-1-1 Emergency Communication Fund, managed by the E9-1-1
Program Manager. The wireless state E9-1-1 Program is operated as part of the Iowa Homeland Security
and Emergency Management Division (HSEMD).
The statute also provides direction as to the distribution of the revenue deposited in the emergency
communication fund. Wireless surcharge funds are to be allocated for the operations of the state E9-1-1
Program Office, cost reimbursement for wireless carriers, reimbursement for vendors providing network
and database services and an allocation to county Joint E9-1-1 Service Boards.
In addition, special project funds are distributed as state grants to PSAPs for upgrades and improvement,
and some of the wireless funds are being directed to the planning and implementation of the state’s Next
Generation 9-1-1 (NG9-1-1) system as matching funds for a federal grant. The state’s $1.4 million
contribution to the NG9-1-1 system includes $1.3 million in matching funds for the federal grant to
complete Phase I of the NG9-1-1 system, planned for September 2012. The remaining $100,000 will be
used to support both the legacy and NG9-1-1 networks during NG9-1-1 testing and implementation. The
state also has funds set aside for network capacity increase.
1 Reference 605-10.13 (34A)
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
Voice over Internet Protocol Funding
The Voice over Internet Protocol (VoIP) surcharge fee is collected at the wireless rate of $0.65 per month
and remitted to the county Joint E9-1-1 Service Board when the fee is applied. It is important to note that
the state 9-1-1 Program Manager indicated to GeoComm that VoIP calls are frequently transported over
the wireless network but that sometimes the VoIP provider will contract with a third-party provider to
utilize the wireline network to access the PSAP network; and that VoIP providers in Iowa claim it is unclear
as to whether they fall under the current 9-1-1 statute and/or state regulatory authority. Not all VoIP
providers collect and remit the fees, and GeoComm has not received data differentiating the VoIP
surcharge fees from the total wireline fee received by the county Joint E9-1-1 Service Boards.
Local General Revenue Funding
GeoComm has found that the level of local funding required for each county to both provide 9-1-1 services
and operate PSAPs varies a great deal. The local funding revenue source included in the end of fiscal year
2011 budget estimates reported to the state ranged from zero local funds reported by the Calhoun, Scott,
Washington, and Worth County Joint E9-1-1 Service Boards to as much as $520,830 reported by the Page
County Joint E9-1-1 Service Board. Local funding reported in the Joint E9-1-1 Service Board budgets may
include bond funds, grant funds, interest on investments, and local tax dollars.
Another annual budget revenue source is carryover funds from the previous year. The annual budget
format provided by the Iowa DOM does include, on both the revenue and the expenditures sides,
accounting for designated and undesignated carryover funds.
Analysis of Funding Methods
Each fiscal year, the county Joint E9-1-1 Service Boards’ are required to file their annual budgets with the
state 9-1-1 Program Manager. A copy of each budget for the past three years is available on the Iowa
DOM website2 . The budget format includes the resources and requirements for each county Joint E9-1-1
Service Board’s fiscal year budget beginning July 1 of each calendar year. On the following page is a budget
example of the fiscal year 2012 budget for the Polk County Joint E9-1-1 Service Board.
2 https://www.iowaonline.state.ia.us/localbudgets/default.aspx?cmd=gotopublicsite
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
It is important to note from the exemplar budget that there are several financial resource categories in the
budget, including the beginning fund balance, telephone surcharge (wireline), and other revenues that
includes the wireless E9-1-1 surcharge. The budget financial requirement categories include administration,
communications, data processing, addressing, equipment repair and maintenance, contracted services,
capital expenditures and debt service. Both the beginning and ending fund balance sides of the budget
document include categories of funds that are reserved for encumbrances, unreserved/designated and
unreserved/undesignated.
For the purposes of this funding methodology analysis, GeoComm has evaluated the level of funding that
surcharge revenues contribute to the expenditures of each budget and the state 9-1-1 Program Office as a
whole. Table 1 on the following page provides a summary of total surcharge and other revenue
contributions to the county Joint E9-1-1 Service Boards budgets that were estimates for end of fiscal years
2009 through 2011.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
Table 1
State of Iowa County E9-1-1 Service Boards
Estimated Budget FY 2009 - FY 2011
Budget Category 2009 Estimated 2010 Estimated 2011 Estimated
Revenue
Wireline Surcharge $14,406,862 $14,077,265 $13,246,008
Wireless Surcharge $2,986,018 $3,195,987 $3,923,721
Other Revenue $5,972,536 $8,006,220 $5,374,396
Total $23,365,416 $25,279,472 $22,544,125
Expenditures
Salaries $1,156,594 $860,344 $704,167
Administration $801,959 $713,113 $800,158
E9-1-1 Telephone Expense $3,145,369 $3,676,175 $3,046,934
9-1-1 Data Processing $1,129,389 $1,721,114 $1,302,866
Signage/Mapping $894,434 $806,053 $742,278
Equipment Maintenance $3,443,606 $3,398,544 $3,716,448
Contract Services $1,703,709 $2,175,359 $2,698,803
Capital Expenditures: Communications $5,563,500 $6,383,792 $4,897,485
Capital Expenditures: PSAP Equipment $3,277,047 $3,171,309 $2,231,005
Capital Expenditures: Signage $1,332,190 $1,596,944 $1,584,137
Debt Service $917,619 $776,725 $819,844
Total $23,365,416 $25,279,472 $22,544,125
Revenue Contributions to Budget
Wireline Surcharge 61.66% 55.69% 58.76%
Wireless Surcharge 12.78% 12.64% 17.40%
Other Revenue 25.56% 31.67% 23.84%
Total 100.00% 100.00% 100.00%
It is important to note when reviewing the annual budgets across the state:
Not all county budget line items were complete for all three years
Each fiscal year was independent
Some counties had a surplus of surcharge revenue to fund their budgets. However, more than 80
percent of the budgets required other (non-surcharge) revenue to meet budget requirements. The
source of these revenues could be carryover fund balances or local funds.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
Appendix A provides the detail documentation for each county supporting Table 1.
Funding Methods Findings
As GeoComm analyzed the different 9-1-1 funding methods for the State of Iowa and concluded that
wireline surcharge funding is decreasing at an accelerating rate while the wireless surcharge is increasing at
a decelerating rate. In other words, the rate at which wireline 9-1-1 surcharge proceeds are going down is
getting worse (due to more people dropping their landlines), and the rate at which wireless surcharge
revenues are increasing is slowing down, as the penetration of cell phones begins to reach its theoretical
maximum. Most individuals do not need two cell phones, so once a person has one, the rate of increase
would be limited to the increase (if any) in the population. It is also important to note that county Joint
E9-1-1 Service Boards are being required to supplement the surcharge from other sources identified in
their annual budgets.
In examining the budgets, GeoComm found the following:
Revenues
Wireline revenues continue to decrease at an accelerating rate.
The fiscal year 2011 revenue estimate was approximately six percent less than 2010 and
eight percent less than in 2009.
Wireline surcharge accounts for approximately 80 percent of total surcharge.
Wireless revenues continue to increase at a decelerating rate.
The Office of the Auditor for the State of Iowa reported that over the past three years,
fiscal years 2008 through 2010, revenues from the wireless surcharge grew by 5.4 percent
in 2009 and another 4.9 percent in 2010.
Wireless surcharge accounts for approximately 20 percent of total surcharge collected in
the state used to support county Joint E9-1-1 Service Board budgets.
VoIP surcharge is not consistently collected across the state. Even though the VoIP services
are connected to the state, rather than the local 9-1-1 networks, the associated VoIP
surcharges that are collected are remitted to the local Joint E9-1-1 Service Board rather than
the state.
Total surcharge revenues (both wired and wireless) continue to decline at an accelerating rate.
To sustain the current level of service under the current surcharge funding models, increased
revenue from other categories will be required.
Expenditures
Salaries for PSAP operations are not included in the joint service board budgets because they
are not allowed by statute. Budget salaries include database management services.
Other administrative services are relatively constant
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
E9-1-1 telephone expense, equipment maintenance, contract services, and capital expenditures
account for the largest portion of the annual budgets. Annual deviations in these categories
provide the largest change in total expenditures each year
Total expenditures over the three year period studied are relatively flat
Carryover funds
County Joint E9-1-1 Service Boards are allowed a carryover operating surplus of 25 percent of
the annual budget without lowering the wireline surcharge rate.
County Joint E9-1-1 Service Boards have both designated and undesignated carryover budget
line items.
Designated carryover funds are for projected capital expenditures for future projects.
Many of the Joint E9-1-1 Service Board carry a substantial designated fund reserve
Undesignated carryover funds are reserve funds yet to be designated
Analysis of Wireless Distribution
As previously stated, the State of Iowa Wireless E9-1-1 Emergency Communication Fund is managed by the
state 9-1-1 Program Manager. Wireless surcharge revenues are deposited into the fund each quarter to
support the wireless E9-1-1 Program Office activities. The statute requires the 9-1-1 Program Manager to
distribute the funds in the following manner:
$200,000 per year to fund the operations of the State 9-1-1 Program Office
Up to 21 percent of the collected funds to reimburse wireless carriers for expenditures associated
with the provision of E9-1-1 services
Reimburse local exchange carriers for network services
Reimburse vendors for Automatic Location Information (ALI) and Selective Routing (SR) services
25 percent of the collected funds are distributed to county Joint E9-1-1 Service Boards to
supplement their annual budgets
The remainder is to be used for the enhancement of PSAPs through upgrades and improvements.
Funds not expended in the ways identified above are deposited into a Carryover Fund for both
designated and undesignated purposes.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
The following table provides an overview of the wireless surcharge funds received and distributed for
fourth quarter 2010, first quarter 2011, and second quarter 2011.
Table 2
4th Quarter 2010 1st Quarter 2011 2nd Quarter 2011
Gross Funds Received $4,236,818.31 $4,265,750.10 $4,388,751.88
HLSEM Funding $(50,000.00) $(50,000.00) $(50,000.00)
Interest Earned $12,444.80 $5,685.51 $3,168.77
Expenditures $(403.08) $(397.47) $(230.89)
Funds Available $4,198,860.03 $4,221,038.14 $4,341,689.76
21 Percent for Cost
Recovery $881,760.61 $886,418.01 $911,754.85
Total Cost Recovery
Expense $(666,296.72) $(664,549.46) $(654,744.26)
LEC Network Expense $(276,766.26) $(276,439.24) $(279,200.61)
ALI/Selective Expense $(1,427,550.81) $(1,422,673.63) $(1,405,254.86)
PSAP Funding $(1,049,715.01) $(1,047,231.96) $(1,085,422.44)
Total Expended $(3,420,328.80) $(3,410,894.29) $(3,424,622.17)
Available for Carryover $781,744.43 $ - $ -
Prior Quarter Carryover $1,718,117.81 $2,499,862.24 $3,310,006.15
Carryover Project Expense $ - $ - $(70,580.00)
End of Quarter
Carryover $2,499,862.24 $2,499,862.24 $3,239,426.15
Total Funds in
Carryover $8,098,792.04 $9,684,673.52 $8,880,536.47
Carryover Obligations
US DOT Matching Grant $1,333,456.30
Network Capacity Increase $200,000.00
PSAP Projects $150,000.00
Total Obligations $1,683,456.30
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
Wireless Distribution Findings
As GeoComm reviewed the revenue and expenditure history for the State of Iowa Wireless E9-1-1
Emergency Communications Fund, the project team confirmed that the wireless revenues continue to
increase but at a decelerating rate. According to the data provided in Table 3 below, the revenues grew by
5.45 percent in fiscal year 2009 and by 4.93 percent in fiscal year 2010. Although the audit report for fiscal
year 2011 is not available, based on quarterly reports, GeoComm estimates the wireless surcharge
revenues grew by 1.66 percent in fiscal year 2011 with a total surcharge received being $17,194,581.
Table 3
Wireless E9-1-1 Emergency Communications Fund
Budgetary Comparison Schedule
FY 2008 Actual FY 2009 Actual FY 2010 Actual
Revenues
Fees, licenses, and
permits
$15,286,980 $16,119,584 $16,914,452
Interest on
investments
$148,775 $108,869 $47,926
Refunds and
reimbursements
$1,054 $ - $ -
Total Revenues $15,436,809 $16,228,453 $16,962,378
Expenditures
Personnel services $133,700 $147,877 $157,739
Travel and
subsistence
$9,237 $12,749 $7,939
Supplies and materials $1,355 $556 $350
Contractual services $14,171,590 $15,239,850 $13,590,435
Equipment and repair $1,595 $563 $656
Total Expenditures $14,317,477 $15,401,595 $13,757,119
Excess of revenues over expenditures $1,119,332 $826,858 $3,205,259
Beginning of year balance $2,464,881 $3,584,213 $4,411,071
End of year balance $3,584,213 $4,411,071 $7,616,330
GeoComm has also found the following trends with regards to wireless revenues received and expended
by the State of Iowa:
The state expenditure for wireless cost recovery averages close to 16 percent of the available funds
rather than the 21 percent authorized by statute
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-10
Public Safety Consulting, GIS, and Software www.geo-comm.com
The network, database, and selective routing costs associated with the wireless 9-1-1 system
requires close to 40 percent of the available funds
The PSAP disbursement is 25 percent of the available funds
The state provides an average 81 percent of its quarterly surcharge revenues for the provision of
enhanced wireless 9-1-1 services, leaving close to 19 percent available to increase the carryover
funds
GeoComm has also determined that the Carryover Fund has continued to increase although a portion of
the fund is designated for certain obligations including:
Matching funds for Phase I of its NG9-1-1 program ($1,333,456.30)
Funds to increase network capacity ($200,000)
PSAP projects ($150,000)
At the end of the second calendar quarter 2011, the total carryover funds in the State of Iowa Wireless
E9-1-1 Emergency Communication Fund were $8,880,536.47.
Conclusions
Given the structure of 9-1-1 services in the State of Iowa, its funding mechanisms and the decline of
surcharge revenues, GeoComm finds that the current 9-1-1 surcharge model will not continue to sustain
the current level of 9-1-1 services across the state for the long-term. GeoComm will continue to evaluate
options for mitigating the decline of service including the following:
Joint E9-1-1 Service Boards
County E9-1-1 Joint Service Boards may need to explore different means for reducing the costs
for their respective jurisdictions.
Joint E9-1-1 Service Boards might need to consider sharing technology as well as combining
PSAPs.
9-1-1 legislation
As proposed in the last session, the state may need to evaluate the need to increase the
wireless surcharge to a maximum of $1.00 to match the wireline maximum in an effort to
alleviate fiscal strain on local government funds required to sustain 9-1-1 services.
GeoComm continues to evaluate to what degree the statute language should be changed to
clarify that any communication device that accesses the 9-1-1 network is subject to the
surcharge fee; or consider expanding the definition of subscribers to any technology that
accesses 9-1-1.
Consideration may need to be given to changing the formula for distribution to the county
E9-1-1 Boards
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 2-11
Public Safety Consulting, GIS, and Software www.geo-comm.com
Assessment of the impact of remove cost recovery for wireless carriers3
Analyzing the impact of increasing the percent distribution to the Joint E9-1-1 Boards
Appendix A
Forms located on the following pages.
3 At the outset of wireless E9-1-1 services in the mid 1990’s, the FCC regulations on the wireless carriers permitted
them to charge “9-1-1 jurisdictions” (State, in Iowa’s case) for their costs in developing, implementing and maintaining
these services. In a later ruling by the FCC on a petition filed by King County, WA, the FCC changed course and
declared that wireless carriers had to provide E9-1-1 regardless of whether or not they could get “cost recovery”
from the states. However, numerous states had already passed statutes that presumed that these “cost recovery fees”
would have to be paid to the carriers and contracts were signed to that effect. What is needed now is to change the
stature permitting or requiring such cost recovery payments to the carriers and then informing the carriers thunder
the “King County Ruling” we’re not going to pay you cost recovery anymore.
County
2009
Estimated
FYE Wireline
Surcharge
Revenue
Percent of
Total 2009
Estimated
Budget
Revenue
2009
Estimated
FYE Wireless
Surcharge
Revenue
Percent of
Total 2009
Estimated
Budget
Revenue
2009
Estimated
FYE
Operating
Expenditures
Percent of
Total
Requiring
Non
Surcharge
Revenues
Total Non
Surcharge
Revenue
Required to
Meet Budget
Requirements
Allamakee 92,000$ 48.68% 25,000$ 13.23% $188,975 38.09% 71,975$
Appanoose 70,000$ 59.27% 26,000$ 22.02% $118,100 18.71% 22,100$
Audubon 57,000$ 85.84% -$ 0.00% $66,400 14.16% 9,400$
Benton 136,000$ 76.59% 40,000$ 22.53% $177,569 0.88% 1,569$
Black Hawk 600,000$ 35.08% 75,000$ 4.39% $1,710,150 60.53% 1,035,150$
Boone 150,000$ 80.65% 24,000$ 12.90% $186,000 6.45% 12,000$
Bremer 99,750$ 156.27% 25,750$ 40.34% $63,830 -96.62% (61,670)$
Buchanan 80,030$ 50.28% 30,745$ 19.32% $159,175 30.41% 48,400$
Buena Vista 110,000$ 68.33% 39,000$ 24.23% $160,974 7.44% 11,974$
Butler 80,000$ 61.90% 29,000$ 22.44% $129,247 15.67% 20,247$
Calhoun 61,000$ 62.66% 36,000$ 36.98% $97,355 0.36% 355$
Carroll 150,000$ 61.75% 30,000$ 12.35% $242,918 25.90% 62,918$
Cass 93,000$ 0.00% 34,000$ 0.00% $0 0.00% (127,000)$
Cedar 100,000$ 54.38% 26,000$ 14.14% $183,900 31.48% 57,900$
Cerro Gordo 132,000$ 117.63% 40,000$ 35.64% $112,220 -53.27% (59,780)$
Cherokee 82,000$ 42.06% 25,000$ 12.82% $194,950 45.11% 87,950$
Chickasaw -$ 0.00% 18,500$ 24.13% $76,666 75.87% 58,166$
Clay 115,000$ 43.18% 12,000$ 4.51% $266,320 52.31% 139,320$
Clayton 114,000$ 64.58% 32,000$ 18.13% $176,538 17.30% 30,538$
Clinton 185,000$ 39.33% 64,000$ 13.61% $470,400 47.07% 221,400$
Crawford 100,000$ 46.66% -$ 0.00% $214,300 53.34% 114,300$
Dallas 350,000$ 49.65% 75,000$ 10.64% $705,000 39.72% 280,000$
Davis 48,500$ 45.01% 24,000$ 22.27% $107,750 32.71% 35,250$
Decatur 40,375$ 53.77% 28,000$ 37.29% $75,092 8.95% 6,717$
Delaware 100,000$ 63.71% 30,000$ 19.11% $156,968 17.18% 26,968$
Des Moines 113,548$ 72.32% 30,227$ 19.25% $157,016 8.43% 13,241$
Dickinson 95,938$ 112.64% 23,436$ 27.52% $85,172 -40.16% (34,202)$
Dubuque 500,000$ 56.12% 50,000$ 5.61% $891,011 38.27% 341,011$
Emmet 60,000$ 23.60% 18,000$ 7.08% $254,250 69.32% 176,250$
Fayette 114,420$ 53.41% 24,930$ 11.64% $214,225 34.95% 74,875$
Floyd 90,000$ 59.80% 25,000$ 16.61% $150,500 23.59% 35,500$
Franklin 70,000$ 59.17% 25,000$ 21.13% $118,300 19.70% 23,300$
Fremont 50,000$ 52.41% 25,000$ 26.21% $95,400 21.38% 20,400$
Greene 61,123$ 46.43% 24,860$ 18.88% $131,653 34.69% 45,670$
Grundy 68,336$ 51.42% 25,700$ 19.34% $132,899 29.24% 38,863$
Hamilton 96,000$ 68.54% 35,000$ 24.99% $140,072 6.48% 9,072$
Hancock 71,000$ 31.84% 30,000$ 13.45% $223,000 54.71% 122,000$
Hardin 115,000$ 48.92% 30,000$ 12.76% $235,100 38.32% 90,100$
Harrison 110,000$ 43.59% 10,000$ 3.96% $252,367 52.45% 132,367$
Henry 109,000$ 60.54% 31,000$ 17.22% $180,050 22.24% 40,050$
Howard 55,000$ 74.47% 33,000$ 44.68% $73,851 -19.16% (14,149)$
Humboldt 65,536$ 90.23% -$ 0.00% $72,632 9.77% 7,096$
Ida 45,000$ 48.09% 19,000$ 20.30% $93,580 31.61% 29,580$
Iowa 101,000$ 72.00% 30,000$ 21.39% $140,284 6.62% 9,284$
Jackson 128,060$ 59.70% 10,000$ 4.66% $214,490 35.63% 76,430$
Jasper 194,532$ 58.43% 46,973$ 14.11% $332,927 27.46% 91,422$
Jefferson 110,000$ 47.93% 46,000$ 20.04% $229,500 32.03% 73,500$
Johnson 259,946$ 122.07% 79,958$ 37.55% $212,945 -59.62% (126,959)$
Jones 111,000$ 55.17% 3,000$ 1.49% $201,200 43.34% 87,200$
Keokuk 62,838$ 69.05% 30,000$ 32.97% $91,000 -2.02% (1,838)$
State of Iowa County E9-1-1 Service Boards
FYE 2009 Estimated Budget Revenue Source Analysis
County
2009
Estimated
FYE Wireline
Surcharge
Revenue
Percent of
Total 2009
Estimated
Budget
Revenue
2009
Estimated
FYE Wireless
Surcharge
Revenue
Percent of
Total 2009
Estimated
Budget
Revenue
2009
Estimated
FYE
Operating
Expenditures
Percent of
Total
Requiring
Non
Surcharge
Revenues
Total Non
Surcharge
Revenue
Required to
Meet Budget
Requirements
Kossuth 91,000$ 69.49% 18,500$ 14.13% $130,961 16.39% 21,461$
Lee 100,000$ 47.51% 48,000$ 22.80% $210,500 29.69% 62,500$
Linn 310,000$ 58.79% 120,000$ 22.76% $527,292 18.45% 97,292$
Louisa 55,000$ 34.48% 20,000$ 12.54% $159,500 52.98% 84,500$
Lucas 52,000$ 38.18% 30,000$ 22.03% $136,200 39.79% 54,200$
Lyon 72,500$ 91.83% 15,000$ 19.00% $78,950 -10.83% (8,550)$
Mahaska 118,000$ 73.47% 27,000$ 16.81% $160,610 9.72% 15,610$
Marion 165,000$ 38.97% 37,000$ 8.74% $423,353 52.29% 221,353$
Marshall 234,000$ 76.17% 10,600$ 3.45% $307,213 20.38% 62,613$
Mills 78,000$ 72.32% 25,000$ 23.18% $107,850 4.50% 4,850$
Mitchell 150,000$ 76.00% 20,000$ 10.13% $197,372 13.87% 27,372$
Monona 68,000$ 70.22% 29,000$ 29.95% $96,841 -0.16% (159)$
Monroe 36,000$ 46.23% 15,000$ 19.26% $77,872 34.51% 26,872$
Montgomery 68,200$ 83.38% 21,600$ 26.41% $81,795 -9.79% (8,005)$
Muscatine 138,900$ 107.76% -$ 0.00% $128,900 -7.76% (10,000)$
O'Brien 94,000$ 76.67% 18,000$ 14.68% $122,600 8.65% 10,600$
Osceola 35,000$ 83.98% 17,500$ 41.99% $41,675 -25.97% (10,825)$
Page 100,000$ 91.37% 16,694$ 15.25% $109,450 -6.62% (7,244)$
Palo Alto 62,000$ 84.70% 10,000$ 13.66% $73,201 1.64% 1,201$
Plymouth 190,000$ 72.92% 40,500$ 15.54% $260,547 11.53% 30,047$
Pocahontas 50,400$ 92.57% -$ 0.00% $54,444 7.43% 4,044$
Polk 2,615,427$ 73.38% 279,425$ 7.84% $3,564,246 18.78% 669,394$
Pottawattamie 597,239$ 92.91% -$ 0.00% $642,782 7.09% 45,543$
Poweshiek 123,000$ 97.08% 50,000$ 39.46% $126,700 -36.54% (46,300)$
Sac 74,000$ 45.91% 25,000$ 15.51% $161,200 38.59% 62,200$
Shelby 92,000$ 88.32% 28,000$ 26.88% $104,172 -15.19% (15,828)$
Sioux 46,805$ 10.07% 19,661$ 4.23% $464,843 85.70% 398,377$
Story 358,000$ 68.41% 54,000$ 10.32% $523,302 21.27% 111,302$
Tama 94,425$ 64.80% 28,325$ 19.44% $145,726 15.77% 22,976$
Van Buren 40,000$ 39.18% 21,250$ 20.81% $102,090 40.00% 40,840$
Wapello 170,000$ 62.92% 35,000$ 12.95% $270,200 24.13% 65,200$
Warren 300,000$ 123.49% 40,000$ 16.47% $242,930 -39.96% (97,070)$
Washington 174,072$ 43.89% 36,084$ 9.10% $396,650 47.02% 186,494$
Wayne -$ 0.00% 10,800$ 5.19% $208,100 94.81% 197,300$
Webster 160,000$ 85.36% 32,000$ 17.07% $187,440 -2.43% (4,560)$
Winnebago 70,000$ 83.04% 20,000$ 23.72% $84,300 -6.76% (5,700)$
Winneshiek 136,000$ 51.46% 12,000$ 4.54% $264,300 44.00% 116,300$
Woodbury 590,000$ 84.28% 50,000$ 7.14% $700,031 8.58% 60,031$
Worth 59,500$ 42.17% -$ 0.00% $141,107 57.83% 81,607$
Wright 59,020$ 78.12% 30,000$ 39.71% $75,550 -17.83% (13,470)$
SCI Regional 376,442$ 74.04% 180,000$ 35.41% $508,400 -9.45% (48,042)$
Totals 14,406,862$ 61.66% 2,986,018$ 12.78% $23,365,416 25.56% $5,972,536
County
2010
Estimated
FYE Wireline
Surcharge
Revenue
Percent of
Total 2010
Estimated
Budget
Revenue
2010
Estimated
FYE Wireless
Surcharge
Revenue
Percent of
Total 2010
Estimated
Budget
Revenue
2010
Estimated
FYE
Operating
Expenditures
Percent of
Total
Requiring
Non
Surcharge
Revenue
Total Non
Surcharge
Revenue
Required to
Meet Budget
Requirements
Allamakee 90,000$ 45.49% 25,000$ 12.64% 197,850$ 41.88% 82,850$
Appanoose 67,000$ 53.24% 28,000$ 22.25% 125,850$ 24.51% 30,850$
Audubon 61,450$ 90.75% -$ 0.00% 67,715$ 9.25% 6,265$
Benton 140,000$ 73.05% 26,000$ 13.57% 191,647$ 13.38% 25,647$
Black Hawk 575,000$ 39.61% 120,000$ 8.27% 1,451,550$ 52.12% 756,550$
Boone 110,000$ 57.89% 30,000$ 15.79% 190,000$ 26.32% 50,000$
Bremer 94,406$ 136.72% 27,280$ 39.51% 69,050$ -76.23% (52,636)$
Buchanan 84,570$ 32.40% 77,750$ 29.79% 260,984$ 37.80% 98,664$
Buena Vista 110,000$ 55.43% 39,000$ 19.65% 198,465$ 24.92% 49,465$
Butler 75,000$ 58.94% 30,000$ 23.58% 127,247$ 17.48% 22,247$
Calhoun 60,000$ 61.63% 30,000$ 30.82% 97,355$ 7.55% 7,355$
Carroll 135,000$ 93.23% 33,000$ 22.79% 144,800$ -16.02% (23,200)$
Cass 93,000$ 115.10% 34,000$ 42.08% 80,800$ -57.18% (46,200)$
Cedar 95,000$ 56.37% 34,000$ 20.18% 168,517$ 23.45% 39,517$
Cerro Gordo 128,000$ 92.22% 34,200$ 24.64% 138,800$ -16.86% (23,400)$
Cherokee 82,000$ 41.51% 24,000$ 12.15% 197,550$ 46.34% 91,550$
Chickasaw -$ 0.00% 18,500$ 23.89% 77,446$ 76.11% 58,946$
Clay 115,000$ 43.84% 12,000$ 4.57% 262,334$ 51.59% 135,334$
Clayton 110,500$ 66.19% 16,000$ 9.58% 166,950$ 24.23% 40,450$
Clinton 180,000$ 36.71% 40,000$ 8.16% 490,300$ 55.13% 270,300$
Crawford 100,000$ 46.66% 18,592$ 8.68% 214,300$ 44.66% 95,708$
Dallas 400,000$ 70.18% 55,000$ 9.65% 570,000$ 20.18% 115,000$
Davis 48,500$ 45.01% 24,000$ 22.27% 107,750$ 32.71% 35,250$
Decatur 40,035$ 57.92% 22,639$ 32.75% 69,124$ 9.33% 6,450$
Delaware 100,000$ 56.76% 30,000$ 17.03% 176,168$ 26.21% 46,168$
Des Moines 113,548$ 81.59% 30,227$ 21.72% 139,161$ -3.32% (4,614)$
Dickinson 88,161$ 91.83% 24,876$ 25.91% 96,004$ -17.74% (17,033)$
Dubuque 500,000$ 63.94% 54,000$ 6.91% 781,990$ 29.16% 227,990$
Emmet 125,000$ 42.87% 20,000$ 6.86% 291,600$ 50.27% 146,600$
Fayette 113,868$ 65.80% 39,612$ 22.89% 173,050$ 11.31% 19,570$
Floyd 85,000$ 62.18% 32,000$ 23.41% 136,700$ 14.41% 19,700$
Franklin 65,000$ 55.67% 30,000$ 25.70% 116,750$ 18.63% 21,750$
Fremont 45,000$ 60.57% 15,000$ 20.19% 74,300$ 19.25% 14,300$
Greene 58,149$ 74.55% 26,289$ 33.70% 78,000$ -8.25% (6,438)$
Grundy 65,000$ 57.82% 24,000$ 21.35% 112,425$ 20.84% 23,425$
Hamilton 96,000$ 76.68% 36,000$ 28.75% 125,200$ -5.43% (6,800)$
Hancock 71,000$ 43.83% 25,000$ 15.43% 162,000$ 40.74% 66,000$
Hardin 115,000$ 120.99% 30,000$ 31.56% 95,050$ -52.55% (49,950)$
Harrison 110,000$ 62.76% 20,000$ 11.41% 175,284$ 25.83% 45,284$
Henry 95,000$ 50.90% 36,000$ 19.29% 186,650$ 29.82% 55,650$
Howard 55,000$ 39.51% 35,000$ 25.14% 139,211$ 35.35% 49,211$
Humboldt 78,064$ 70.46% -$ 0.00% 110,793$ 29.54% 32,729$
Ida 45,000$ 49.94% 15,000$ 16.65% 90,115$ 33.42% 30,115$
Iowa 100,000$ 67.59% 30,000$ 20.28% 147,954$ 12.13% 17,954$
Jackson 129,054$ 57.92% 20,000$ 8.98% 222,800$ 33.10% 73,746$
Jasper 194,030$ 11.82% 48,000$ 2.92% 1,641,745$ 85.26% 1,399,715$
Jefferson 105,000$ 55.29% 45,000$ 23.70% 189,900$ 21.01% 39,900$
Johnson 255,188$ 19.44% 84,500$ 6.44% 1,312,967$ 74.13% 973,279$
Jones 100,000$ 54.37% 33,000$ 17.94% 183,936$ 27.69% 50,936$
Keokuk 59,500$ 51.74% 30,000$ 26.09% 115,000$ 22.17% 25,500$
State of Iowa County E9-1-1 Service Boards
FYE 2010 Estimated Budget Revenue Source Analysis
Kossuth 130,000$ 84.18% -$ 0.00% 154,430$ 15.82% 24,430$
Lee 95,000$ 52.75% 50,000$ 27.76% 180,100$ 19.49% 35,100$
Linn 300,000$ 22.66% 130,000$ 9.82% 1,323,721$ 67.52% 893,721$
Louisa 50,000$ 33.76% 21,000$ 14.18% 148,106$ 52.06% 77,106$
Lucas 46,200$ 40.44% 24,000$ 21.01% 114,244$ 38.55% 44,044$
Lyon 72,500$ 87.58% 15,000$ 18.12% 82,785$ -5.70% (4,715)$
Mahaska 113,000$ 48.88% 32,000$ 13.84% 231,194$ 37.28% 86,194$
Marion 143,657$ 73.58% 40,000$ 20.49% 195,227$ 5.93% 11,570$
Marshall 192,000$ 44.49% 40,000$ 9.27% 431,558$ 46.24% 199,558$
Mills 78,000$ 50.34% 25,000$ 16.13% 154,950$ 33.53% 51,950$
Mitchell 70,000$ 72.16% 20,000$ 20.62% 97,000$ 7.22% 7,000$
Monona 62,000$ 45.47% 34,000$ 24.94% 136,341$ 29.59% 40,341$
Monroe 34,000$ 47.77% 15,000$ 21.08% 71,172$ 31.15% 22,172$
Montgomery 66,500$ 74.25% 24,000$ 26.80% 89,565$ -1.04% (935)$
Muscatine 124,500$ 61.03% 30,000$ 14.71% 204,004$ 24.27% 49,504$
O'Brien 94,000$ 48.68% 18,000$ 9.32% 193,100$ 42.00% 81,100$
Osceola 40,000$ 100.95% 17,500$ 44.16% 39,625$ -45.11% (17,875)$
Page 86,000$ 83.54% 31,000$ 30.11% 102,950$ -13.65% (14,050)$
Palo Alto 60,000$ 86.39% -$ 0.00% 69,450$ 13.61% 9,450$
Plymouth 175,566$ 146.18% -$ 0.00% 120,100$ -46.18% (55,466)$
Pocahontas 50,400$ 92.27% -$ 0.00% 54,624$ 7.73% 4,224$
Polk 2,563,299$ 79.99% 309,779$ 9.67% 3,204,404$ 10.34% 331,326$
Pottawattamie 599,772$ 115.67% -$ 0.00% 518,528$ -15.67% (81,244)$
Poweshiek 110,000$ 44.64% 40,000$ 16.23% 246,400$ 39.12% 96,400$
Ringgold 34,000$ 68.60% 18,000$ 36.32% 49,565$ -4.91% (2,435)$
Sac 72,000$ 50.99% 28,000$ 19.83% 141,200$ 29.18% 41,200$
Shelby 90,000$ 65.34% 30,000$ 21.78% 137,750$ 12.89% 17,750$
Sioux 169,520$ 87.07% 25,653$ 13.18% 194,700$ -0.24% (473)$
Story 355,000$ 66.37% 58,000$ 10.84% 534,898$ 22.79% 121,898$
Tama 88,381$ 42.57% 40,830$ 19.67% 207,625$ 37.77% 78,414$
Van Buren 42,000$ 35.18% 21,000$ 17.59% 119,370$ 47.22% 56,370$
Wapello 150,000$ 55.29% 35,000$ 12.90% 271,300$ 31.81% 86,300$
Warren 250,000$ 103.35% 42,000$ 17.36% 241,891$ -20.72% (50,109)$
Washington 168,788$ 44.57% 29,760$ 7.86% 378,700$ 47.57% 180,152$
Wayne -$ 0.00% 7,000$ 7.69% 90,986$ 92.31% 83,986$
Webster 165,000$ 69.20% 40,000$ 16.78% 238,440$ 14.02% 33,440$
Winnebago 70,000$ 81.87% 20,000$ 23.39% 85,500$ -5.26% (4,500)$
Winneshiek 112,000$ 39.05% 12,000$ 4.18% 286,800$ 56.76% 162,800$
Woodbury 520,000$ 69.20% 50,000$ 6.65% 751,425$ 24.14% 181,425$
Worth 59,500$ 42.17% -$ 0.00% 141,107$ 57.83% 81,607$
Wright 48,659$ 59.67% 30,000$ 36.79% 81,550$ 3.55% 2,891$
SCI Regional 365,000$ 86.50% 180,000$ 42.66% 421,950$ -29.16% (123,050)$
Totals 14,077,265$ 55.69% 3,195,987$ 12.64% 25,279,472$ 31.67% 8,006,220$
County
2011
Estimated
FYE Wireline
Surcharge
Revenue
Percent of
Total 2011
Estimated
Budget
Revenue
2011
Estimated
FYE Wireless
Surcharge
Revenue
Percent of
Total 2011
Estimated
Budget
Revenue
2011
Estimated
FYE
Operating
Expenditures
Percent of
Total
Requiring
Non
Surcharge
Revenue
Total Non
Surcharge
Revenue
Required to
Meet Budget
Requirements
Allamakee 87,000$ 50.63% 25,000$ 14.55% 171,850$ 34.83% 59,850$
Appanoose 60,000$ 57.09% 30,000$ 28.54% 105,100$ 14.37% 15,100$
Audubon 36,200$ 57.76% 24,000$ 38.30% 62,670$ 3.94% 2,470$
Benton 140,000$ 46.03% 11,839$ 3.89% 304,170$ 50.08% 152,331$
Black Hawk 560,000$ 64.14% 90,000$ 10.31% 873,150$ 25.56% 223,150$
Boone 110,000$ 58.51% 35,000$ 18.62% 188,000$ 22.87% 43,000$
Bremer 85,670$ 77.23% 28,170$ 25.40% 110,925$ -2.63% (2,915)$
Buchanan 82,106$ 28.31% 34,872$ 12.02% 290,075$ 59.67% 173,097$
Buena Vista 110,000$ 76.77% 36,000$ 25.12% 143,288$ -1.89% (2,712)$
Butler 74,000$ 59.79% 30,000$ 24.24% 123,776$ 15.98% 19,776$
Calhoun 60,000$ 66.67% 30,000$ 33.33% 90,000$ 0.00% -$
Carroll 130,000$ 81.66% 35,000$ 21.98% 159,200$ -3.64% (5,800)$
Cass 90,000$ 79.65% 22,600$ 20.00% 113,000$ 0.35% 400$
Cedar 120,000$ 82.18% 37,116$ 25.42% 146,026$ -7.59% (11,090)$
Cerro Gordo 128,000$ 92.22% 34,200$ 24.64% 138,800$ -16.86% (23,400)$
Cherokee 70,000$ 66.95% 32,000$ 30.61% 104,550$ 2.44% 2,550$
Chickasaw 68,253$ 57.53% 20,000$ 16.86% 118,635$ 25.61% 30,382$
Clay 115,000$ 57.47% 25,000$ 12.49% 200,120$ 30.04% 60,120$
Clayton 105,000$ 57.45% 10,100$ 5.53% 182,754$ 37.02% 67,654$
Clinton 175,000$ 39.18% 52,000$ 11.64% 446,600$ 49.17% 219,600$
Crawford 90,000$ 36.62% 30,000$ 12.21% 245,800$ 51.18% 125,800$
Dallas 300,000$ 60.94% 50,000$ 10.16% 492,300$ 28.91% 142,300$
Davis 44,000$ 21.13% 25,000$ 12.00% 208,250$ 66.87% 139,250$
Decatur 60,000$ 194.18% 30,369$ 98.28% 30,899$ -192.47% (59,470)$
Delaware 95,000$ 65.60% 32,000$ 22.10% 144,818$ 12.30% 17,818$
Des Moines 124,398$ 72.69% 20,000$ 11.69% 171,145$ 15.63% 26,747$
Dickinson 99,391$ 93.57% 32,408$ 30.51% 106,223$ -24.08% (25,576)$
Dubuque 450,000$ 69.89% 59,000$ 9.16% 643,884$ 20.95% 134,884$
Emmet 86,451$ 47.45% 23,900$ 13.12% 182,181$ 39.43% 71,830$
Fayette 108,492$ 46.82% 45,084$ 19.46% 231,708$ 33.72% 78,132$
Floyd 82,000$ 65.52% 28,000$ 22.37% 125,150$ 12.11% 15,150$
Franklin 60,000$ 38.23% 30,000$ 19.11% 156,950$ 42.66% 66,950$
Fremont 45,000$ 51.96% 25,000$ 28.87% 86,600$ 19.17% 16,600$
Greene 56,552$ 69.06% 27,483$ 33.56% 81,888$ -2.62% (2,147)$
Grundy 58,851$ 53.66% 28,754$ 26.22% 109,675$ 20.12% 22,070$
Hamilton 93,300$ 63.95% 38,000$ 26.05% 145,900$ 10.01% 14,600$
Hancock 61,000$ 65.95% 30,500$ 32.97% 92,500$ 1.08% 1,000$
Hardin 115,000$ 68.64% 30,000$ 17.91% 167,550$ 13.46% 22,550$
Harrison 125,300$ 79.00% 20,000$ 12.61% 158,600$ 8.39% 13,300$
Henry 100,000$ 46.92% 32,000$ 15.01% 213,150$ 38.07% 81,150$
Howard 65,000$ 42.18% 35,000$ 22.71% 154,088$ 35.10% 54,088$
Humboldt 79,481$ 85.36% -$ 0.00% 93,117$ 14.64% 13,636$
Ida 45,000$ 49.94% 15,000$ 16.65% 90,115$ 33.42% 30,115$
Iowa 89,000$ 67.11% 36,000$ 27.15% 132,620$ 5.75% 7,620$
Jackson 120,000$ 56.66% 18,907$ 8.93% 211,800$ 34.42% 72,893$
Jasper 160,000$ 22.22% 50,000$ 6.94% 719,952$ 70.83% 509,952$
Jefferson 104,000$ 53.43% 30,000$ 15.41% 194,650$ 31.16% 60,650$
Johnson 235,586$ 44.95% 81,322$ 15.52% 524,082$ 39.53% 207,174$
Jones 96,000$ 49.30% 41,000$ 21.05% 194,740$ 29.65% 57,740$
Keokuk 56,000$ 62.19% 32,350$ 35.92% 90,050$ 1.89% 1,700$
State of Iowa County E9-1-1 Service Boards
FYE 2011 Estimated Budget Revenue Source Analysis
Kossuth 90,000$ 56.21% 40,000$ 24.98% 160,115$ 18.81% 30,115$
Lee 90,000$ 43.91% 45,000$ 21.96% 204,950$ 34.13% 69,950$
Linn 265,000$ 21.60% 150,000$ 12.23% 1,226,604$ 66.17% 811,604$
Louisa 40,000$ 27.35% 19,000$ 12.99% 146,275$ 59.67% 87,275$
Lucas 46,200$ 67.95% 24,000$ 35.30% 67,991$ -3.25% (2,209)$
Lyon 67,000$ 77.34% 30,000$ 34.63% 86,632$ -11.97% (10,368)$
Mahaska 102,000$ 65.24% 28,000$ 17.91% 156,334$ 16.84% 26,334$
Marion 131,000$ 70.51% 40,000$ 21.53% 185,785$ 7.96% 14,785$
Marshall 180,000$ 73.83% 44,000$ 18.05% 243,787$ 8.12% 19,787$
Mills 75,988$ 66.23% 35,825$ 31.22% 114,740$ 2.55% 2,927$
Mitchell 65,000$ 71.43% 25,000$ 27.47% 91,000$ 1.10% 1,000$
Monona 35,000$ 41.04% 34,000$ 39.86% 85,293$ 19.10% 16,293$
Monroe 34,000$ 44.96% 20,000$ 26.45% 75,622$ 28.59% 21,622$
Montgomery 67,200$ 58.65% 24,000$ 20.95% 114,580$ 20.40% 23,380$
Muscatine 147,000$ 73.13% 20,000$ 9.95% 201,000$ 16.92% 34,000$
O'Brien 94,000$ 59.42% 18,000$ 11.38% 158,200$ 29.20% 46,200$
Osceola 40,000$ 100.95% 17,500$ 44.16% 39,625$ -45.11% (17,875)$
Page 77,000$ 12.50% 30,000$ 4.87% 616,176$ 82.63% 509,176$
Palo Alto 55,000$ 24.50% 30,000$ 13.36% 224,487$ 62.14% 139,487$
Plymouth 150,518$ 63.81% 23,282$ 9.87% 235,879$ 26.32% 62,079$
Pocahontas 50,400$ 88.90% 15,369$ 27.11% 56,691$ -16.01% (9,078)$
Polk 2,300,035$ 87.15% 325,263$ 12.32% 2,639,307$ 0.53% 14,009$
Pottawattamie 581,997$ 71.99% -$ 0.00% 808,494$ 28.01% 226,497$
Poweshiek 108,000$ 46.71% 40,000$ 17.30% 231,200$ 35.99% 83,200$
Ringgold 29,000$ 47.04% 19,000$ 30.82% 61,650$ 22.14% 13,650$
Sac 70,000$ 65.18% 30,000$ 27.93% 107,400$ 6.89% 7,400$
Scott -$ 426,875$ -$ 100.00% (426,875)$
Shelby 123,750$ 123.91% 30,000$ 30.04% 99,873$ -53.95% (53,877)$
Sioux 185,000$ 85.37% 30,000$ 13.84% 216,700$ 0.78% 1,700$
Story 325,000$ 61.82% 61,250$ 11.65% 525,734$ 26.53% 139,484$
Tama 90,133$ 46.97% 30,000$ 15.63% 191,901$ 37.40% 71,768$
Van Buren 40,000$ 33.47% 25,000$ 20.92% 119,500$ 45.61% 54,500$
Wapello 140,000$ 65.79% 40,000$ 18.80% 212,800$ 15.41% 32,800$
Warren 240,000$ 122.19% 42,650$ 21.71% 196,420$ -43.90% (86,230)$
Washington 162,086$ 42.65% 35,633$ 9.38% 380,000$ 47.97% 182,281$
Wayne -$ 0.00% 15,000$ 22.39% 67,000$ 77.61% 52,000$
Webster 165,000$ 79.41% 43,000$ 20.69% 207,790$ -0.10% (210)$
Winnebago 54,805$ 63.47% 24,100$ 27.91% 86,350$ 8.62% 7,445$
Winneshiek 109,000$ 30.68% 30,000$ 8.44% 355,300$ 60.88% 216,300$
Woodbury 480,000$ 69.96% 90,000$ 13.12% 686,125$ 16.92% 116,125$
Worth 38,000$ 57.64% 23,000$ 34.89% 65,930$ 7.48% 4,930$
Wright 54,865$ 58.65% 30,000$ 32.07% 93,550$ 9.28% 8,685$
SCI Regional 336,000$ 78.82% 200,000$ 46.92% 426,261$ -25.74% (109,739)$
Total FY2011 13,246,008$ 58.76% 3,923,721$ 17.40% 22,544,125$ 23.84% 5,374,396$
Public Safety Consulting, GIS, and Software www.geo-comm.com
3 Analysis of Current 9-1-1 Networks (Wireline and
Wireless)
Iowa Network - Assessment and Analysis
In times of emergency, citizens seeking access to police, fire, or Emergency Medical Services (EMS) have
been encouraged to dial 9-1-1 throughout the State of Iowa. Historically, the delivery of emergency
services has been a local or county level service offering. However, due to changes in national priorities,
consumer expectations, and infrastructure options, there is now an environment that can support new
roles and relationships between the system participants, as they deal with issues that have a larger than only
the local impact.
In Iowa, GeoComm finds two distinct service delivery models aimed at maintaining both prompt and
effective access to services via 9-1-1 as well as reinforcing the usual and customary political assignment of
responsibility for such services. This legislatively defined role assignment includes the authority to impose
fees to pay for the costs of enhancing services and modernizing the 9-1-1 infrastructure.
The 99 counties of Iowa retain the responsibility for wireline Enhanced 9-1-1 (E9-1-1) with specific
emphasis on accessing, delivering, and managing the wireline call from the fixed location point of origin
through the network to the Public Safety Answering Point (PSAP) designated as responsible for responding
to such calls. The expansion of wireless devices has prompted a parallel network and associated equipment
to accept, route, and deliver 9-1-1 calls made from wireless devices. The responsibility for answering,
processing, and responding to the wireless calls in a particular jurisdiction begins with the assigned PSAP.
However, the design and management of the network architecture used to transport the wireless call to
that local PSAP is the responsibility of the state E9-1-1 Program.
GeoComm was assigned a representative group of 18 PSAPs to use as the sample for information gathering
and development of strategies for service improvement without any erosion of the level of service
historically achieved through dedicated, secure trunk lines and specialized call-handling equipment.
Analysis of Two Networks
One of the areas that GeoComm assessed was the impact of the two network infrastructures and cost
aspects related to the large number of PSAPs operating in the state. In an effort to evaluate the total costs
of 9-1-1 service today, GeoComm reviewed information from the current PSAP environment, such as call
volume, for the 18 PSAPs. Unfortunately, some of the selected PSAPs did not or could not provide call
data. Regardless, trends in 9-1-1 use, revenue, and costs may still be derived from the overall summary.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
The State of Iowa (through wireless E9-1-1 surcharge funds) and individual county Joint E9-1-1 Service
Boards (through local 9-1-1 wireline surcharge funds) support the 9-1-1 activity. In an attempt to identify
preliminary cost data for maintaining wireline 9-1-1 services, GeoComm reviewed the official E9-1-1 budget
reports of the 18 PSAPs’ Joint E9-1-1 Service Boards, as submitted to the Iowa Department of Management
using Form E911-11. The budget information per county, listed the actual costs of the previous year and
the proposed expenditures for the current year. It should be noted that the budgets available to
GeoComm for review represent expenses for the elements eligible for 9-1-1 surcharge, but they are not
are representative of all expenses necessary to operate a PSAP. The detail of which operational area the
expenditures actually apply to is not delineated within these reports. The reports do; however, provide a
“snapshot” of what level the Joint E9-1-1 Service Board funds the PSAP operation.
The wireline and wireless networks implemented in Iowa are functioning as they were designed to.
GeoComm finds that the cost of the separate networks is high, and efficiencies are not recognized to the
degree that might be possible because of the separation of responsibilities and oversight. From a network
perspective, the maintenance of two distinct “systems” is inconsistent with the concept of merged services,
shared networks, and the broader definition of calls for service as alternate, expanded access to 9-1-1
emergency services continues to evolve. The potential changes created by expanding network options and
services beyond traditional sources requires a focused, deliberate effort in order to manage the resources
and E9-1-1 telephone service providers.
Network Standards and Regulatory Activity
The State of Iowa has adopted minimum operational and technical standards for each 9-1-1 system within
the Iowa Administrative Code (605-10.14 (34A). These standards include guidance related to various
elements of E9-1-1. The network specific standards include:
Use of ALI (automatic location identification), ANI (automatic number identification), and the
required levels of accuracy
Selective routing of 9-1-1 calls
Seven-digit numbers required and arranged in rollover configuration
Maintenance of multiple methods of interagency communications capabilities for emergency
coordination purposes
9-1-1 call transfer methodology, including calls originating outside the E9-1-1 service area
Ensuring continuous operations and communications during a power outage; with specific initiation
and duration rules
Reasonable efforts to disallow the intrusion by automatic dialers, alarm systems, or automatic
dialing and announcing devices on a 9-1-1 trunk
1 https://www.iowaonline.state.ia.us/localbudgets/default.aspx?cmd=gotopublicsite
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
Iowa regulations also recognize voluntary standards, defined as the current technical and operational
standards applying to E9-1-1 systems and services. These standards can be found in the “American Society
for Testing and Materials (ASTM) Standard Guide for Planning and Developing 9-1-1 Enhanced Telephone
Systems” and in publications issued by the National Emergency Number Association (NENA). In addition,
Master Street Address Guides (MSAG) are encouraged to be developed and maintained by using NENA
technical standards. Standards contained in these documents should be considered as guidance and
following the standards is voluntary. The state E9-1-1 Program Office, the E9-1-1 telephone service
providers and Joint E9-1-1 Service Boards and operating authorities all should employ the best and most
affordable technologies and methods available to provide quality E9-1-1 services to the public.
GeoComm has reviewed the cited ASTM standard related to the technical and operational aspects of the
installed systems. It is noteworthy that the ASTM standard “Standard Guide for Planning and Developing
9-1-1 Enhanced Telephone Systems, designation of F 1381 – 92 (Reapproved 2003)” has not been updated
since 2003 and predates Next Generation 9-1-1 (NG9-1-1) as well many improvements surrounding
wireless E9-1-1 deployment and service capability.
The lack of modern statutory recognition in the expansion of technical resources needed to improve and
support the proper planning, installation, operation, and management of 9-1-1 systems in Iowa is
inconsistent with other statutory language, urging the employment of the best and most affordable
technologies and methods available for E9-1-1 services to the public. Sources available to the state include
the Network Reliability and Interoperability Council (NRIC) Best Practices for Network Operators, Service
Providers, and Equipment Supplies as related to network elements; and standards promulgated through the
Emergency Services Interconnection Forum (ESIF), especially those pertaining to inter-network
connectivity.
Regulatory Scope
Iowa regulatory tariff language limits the scope of informational elements that can be relayed to and among
PSAPs in the interest of better emergency response throughout the state. GeoComm has reviewed the
current Iowa tariffs, identified as “Qwest Corporation Services Catalog No. 1 Exchange and Network
Services.” In this document, a full discussion of the role of the “Company” (Qwest, now CenturyLink) is
provided. The role includes points of authorized and approved connectivity by wireless service providers,
the third party contractors, and the costs of selected elements and features. Redundancy and diversity,
although limited by facility capability and additional cost, is available through the tariff in effect.
The state of Iowa, PSAPs, and elected/appointed officials with authority for enhancing the current level of
9-1-1 services (including transport, connectivity, and delivery of all approved information) will need to
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
cooperatively develop and adopt modified language in all tariffs. This effort should seek to reduce the
challenges that may arise from interpretations of the current tariffs and to facilitate the evolution from
existing systems (which favor single, sole source providers of such services) toward a system that allows
expanded access and participation by nontraditional providers. Further, substantially different information
elements that can support enhanced situational awareness of an event beyond the traditional, yet significant
location data can be shared among the participants via a more diverse set of options and costs. Examples
may include over time; photographs, videos, messaging, alarm notifications, access to additional media and
resources as well as dynamic call rerouting, virtual PSAP consolidation through shared infrastructure and
truly effective alternate facility and service models to maintain call taking and dispatch functionality amidst
disaster.
Grade of Service and Trunk Capacity
Section 2.2.51 of the voluntary ASTM standard cited above describes the normal grade of service for 9-1-1
providers as P.01 grade of service, which is a measure of emergency telephone service in which no more
than one call in 100 attempts will be blocked due to all trunks being in use, during the average busiest hour.
There was no opportunity during the initial data collection for an in-depth review of the actual grade of
service per PSAP. It is apparent that at the PSAP level, the methodology used to assess this grade of
service, and data from the service provider to conduct this evaluation, is not often used. Specific reports of
such studies were not among the reports that were made available to GeoComm. The Joint E9-1-1 Service
Board may legitimately anticipate that PSAP management would pursue discussion with the appropriate
service provider(s) regarding the current methodology to assess grade of service as well as identify PSAP
trunk issues, such as individual line outages. Local PSAP data resources and telephone statistical data
software is also helpful in evaluating the current capacity and usage of the deployed systems.
There are opportunities to enhance the understanding of grade of service evaluation at the PSAP level and
further opportunities to increase the assessment tools available to the PSAP management for evaluating
trunk capacity and the local jurisdiction’s needs.
Call Volume
The measurement of actual call volume at the PSAP is frequently used to assess the service delivery
provided by a PSAP. It is common to find staffing, training, equipment, network, and facility issues being
related to overall call volume. In most PSAP environments, wireline 9-1-1 calls are usually totaled
separately from wireless 9-1-1 calls, as well as non-emergency calls on administrative/business lines. In
addition, some PSAPs use the outbound call total to assist in defining workload. To these call related
activities, GeoComm finds ancillary duties such as maintaining surveillance of inmates, internal access
control for doors, to processing required documentation and other administrative information, and report
transactions at a public service “window” assigned to PSAP staff. Despite the commonality of such call
accounting, the actual workload associated with call processing can be dynamic and not always subject to
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
simple numeric calculation as other ancillary duties may not be able to be “counted” for analysis purposes
as call volumes. When looking at networks, GeoComm utilized PSAP provided data such as overall call
volume of wireline, wireless, and non-emergency calls answered at the PSAP.
GeoComm requested call volume data from the 18 PSAPs. Twelve PSAPs were able to produce wireline
E9-1-1 call volume data for 2010. Eight of the 12 PSAPs reported a decrease in wireline calls in 2010 when
compared to 2009. No change was reported by one PSAP and the remaining three noted an increase.
2009 to 2010 Wireline 9-1-1 Call
Volume at 12 of the 18 PSAPs
Decrease 8
No Change 1
Increase 3
The dynamic of diminishing wireline call volume, and in many cases the revenue associated with such
services, is not isolated to Iowa. The decline of wireline telephone installations and the increase in
household use of wireless devices and Voice over Internet Protocol (VoIP) has been cited for several years
as steadily eroding the number of wireline telephone devices. Nationally-known public safety
communication associations such as APCO, NENA, NSA, IACP and others published a white paper in 2005,
related to PSAP and 9-1-1 funding. The topic still has significance today since the need to modify the
existing funding paradigm exists since the revenue sources have shifted and the consumer use patterns have
changed over time.
When looking at wireless call volume for 2010, 17 of the 18 PSAPs noted an increasing from 2009 to 2010.
One PSAP reported a decrease of 1.4 percent in wireless E9-1-1 call volume during the same period.
2009 to 2010 Wireless 9-1-1 Call
Volume at 12 of the 18 PSAPs
Decrease 1
Increase 17
The 2010 reported wireless E9-1-1 call volume for the 18 PSAPs was 323,382 calls. The total wireline and
wireless 9-1-1 call volume reported for the PSAPs was 408,687 calls, of which 79 percent were from
wireless devices.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
As wireline call volumes decrease, the resulting decrease in E9-1-1 surcharge revenue may be a concern for
the local jurisdiction. As wireless call volumes increase, the resulting limited E9-1-1 surcharge received for
this classification of calls may also be a concern for the local jurisdiction.
Review of 9-1-1 trunk line capacity per PSAP based on call volume
GeoComm found, based upon information provided by the 18 PSAPs, that in some cases the number of
wireline E9-1-1 trunks per PSAP exceeded the number assigned for wireless E9-1-1 calls even though more
9-1-1 calls are received through the wireless 9-1-1 system. In order to explain this apparent contradiction
of capacity versus usage, it is important for public safety leaders to recognize that such configurations can
be a function of service delivery by E9-1-1 telephone service providers, where direct trunking in lieu of
selective routing is used to deliver a call. In such cases, a minimum of two trunks are required per
telephone exchange regardless of call volume in order to assure that the opportunity for blockage of any
9-1-1 call is appropriately diminished. In one example, the separate telephone exchanges being served by a
single PSAP were each assigned two trunks, and the total reached eight. In addition, the associated ALI
data is obtained from an in-house dataset. This process creates recurring costs to the PSAP for trunk
maintenance as well as database management but is based on current accepted practices. Using the same
PSAP with eight trunks as an example, the PSAP received 824 wireline 9-1-1 calls. While it would appear
that there are many more trunks than are needed for the call volumes experienced, in this direct trunked
implementation environment, the industry-accepted 9-1-1 network engineering guidelines dictate the
described configuration and what is allowed under the Iowa code.
Another nearby PSAP in the study group, using an alternate E9-1-1deployment strategy, was served by eight
wireline trunks as well and handled 40,101 E9-1-1 calls. The calls were delivered to the PSAP by the
CenturyLink Selective Router. The same router also delivered 112,703 wireless E9-1-1 calls on seven
additional trunks.
GeoComm affirms that while the standards document cited within the existing Iowa law, ASTM F1381-92,
defines trunk configuration parameters based on service population, the method to reach compliance of
this standard can vary based on system design and implementation options. Generally, all systems utilize
the Poisson tables and are used to provide an estimate of the number of lines needed.2
2 POISSON DISTRIBUTION: In probability theory and statistics, the Poisson distribution is a discrete probability
distribution that expresses the probability of a given number of events occurring in a fixed interval of time and/or
space if these events occur with a known average rate and independently of the time since the last event. (The Poisson
distribution can also be used for the number of events in other specified intervals such as distance, area or volume.)
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
The lack of meaningful reports of call volume, activity by hour of the day and day of the week, call duration
times, speed of answer and abandoned call rates may prevent the PSAP manager from having the best
statistical information available to assess the actual network capacity and impact on operations. It is equally
important not to confuse network capability and performance with the operational elements created at the
PSAP; such as staffing, workstations scheduling, training, and supervision. In addition, the reliance upon ALI
data as a means to count 9-1-1 calls is not a valid measurement option; since the same call may result in
multiple ALI retrievals, as mid-call location updates are completed.
As a result of this assessment of the 18 PSAPs, GeoComm believes that the assigned number of wireline
trunks to an individual PSAP is strongly influenced by local 9-1-1 service delivery methods and not related
to the availability of existing, empirical data which supports adequate access while maintaining the P.01
grade of service. In addition, it is not been demonstrated that the PSAP and the E9-1-1 telephone service
providers engage in regular review of system performance to assess such capacity issues of either wireline
or wireless network services. The state E9-1-1 Program provides management and oversight of the
wireless 9-1-1 services and therefore has data to evaluate the wireless network.
Network Outages
The review of Iowa re-route reports reinforces the importance of customer premise equipment (CPE)
service and maintenance. In the 31-month period covered by the reports provided to GeoComm, the
most frequently cited reason for call re-routing was a CPE problem.
2011 Network Cited Outages (YTD 1/01/11 through 7/22/11)
113 Outages Total; 3 were Network related Outages
Date Time Location Description
40686 11:59:00AM Humboldt County Network-C3R-LL-Qwest Fiber Cut
40730 0.64375 Montgomery County Network-C3R-LL-Cable Cut
40730 0.64375 Montgomery County Network-C3R-W-Cable Cut
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
2010 Network Cited Outages
198 Outages Total; 17 were Network related Outages
Date Time Location Description
1/20/2010 6:07:00 PM Davis County NETWORK-C2R-W-Fiber Cut
1/20/2010 6:07:00 PM Davis County NETWORK-C2R-LL-Fiber Cut
1/20/2010 3:49:00 PM Davis County NETWORK-C3R-LL-Fiber Cut
1/20/2010 3:49:00 PM Davis County NETWORK-C3R-W-Fiber Cut
1/28/2010 10:38:00 PM Howard County NETWORK-C2R-W-DESMIA-PNAR Work
1/28/2010 10:38:00 PM Howard County NETWORK-C2R-L-MSCYIA-PNAR Work
1/28/2010 10:38:00 PM Howard County NETWORK-C2R-L-CDFLIA-PNAR Work
4/13/2010 8:23:00 PM Hampton PD NETWORK-C3R-LL-MSCY-T1 trouble
4/13/2010 8:23:00 PM Hampton PD NETWORK-C3R-LL-MRTW-T1 trouble
7/29/2010 11:01:00 AM Des Moines PD NETWORK-C3R-LL-Cable Cut
7/29/2010 11:01:00 AM Des Moines PD NETWORK-C3R-W-Cable Cut
7/30/2010 8:24:00 PM Des Moines PD NETWORK-C3R-LL-Local Loop Trouble
7/30/2010 8:24:00 PM Des Moines PD NETWORK-C3R-W-Local Loop Trouble
11/23/2010 11:13:00 AM Jones County NETWORK-C3R-LL-T3 Trouble
11/23/2010 11:13:00 AM Jones County NETWORK-C3R-W-T3 Trouble
12/16/2010 4:28:00 PM Harrison County NETWORK-C2R-W-DACS Trouble
12/16/2010 4:28:00 PM Harrison County NETWORK-C2R-LL-DACS Trouble
2009 Network Cited Outages
192 Outages Total, 13 were Network related Outages
Date Time Location Description
1/22/2009 2:08:00 PM CALHOUN CNTY ILEC-C3R-Network failure-Re-Routed
Wireless
5/13/2009 4:25:00 PM CLAYTON CO C2R, WRLS, IND NETWORK TRBL
5/13/2009 4:25:00 PM CLAYTON CO C2R, WRLN, IND NETWORK TRBL
6/4/2009 12:49:00 AM TAYLOR CO C3R, WRLN, FIBER TRBL IND
6/4/2009 12:49:00 AM TAYLOR CO C3R, WRLS, FIBER TRBL IND
6/30/2009 10:54:00 AM FREMONT CO C3R, WRLS, IND FIBER CUT
6/30/2009 10:54:00 AM FREMONT CO C3R, WRLN, IND FIBER CUT
7/6/2009 4:03:00 PM BUENA VISTA CO C2R, Re-routed LL, FIBER TRBL/WORK
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
10/12/2009 10:19:00 AM WAYNE CO C3R, WRLN, T3 TRBL
10/12/2009 10:19:00 AM WAYNE CO C3R, WRLS, T3 TRBL
11/9/2009 8:48:00 AM AUDUBON CO C2R, T3 TROUBLE
11/19/2009 11:01:00 AM CRAWFORD CO C3R, WRLS, FIBER TROUBLE
11/19/2009 11:01:00 AM CRAWFORD CO C3R, WRLN, FIBER TROUBLE
GeoComm found that the absence of more detailed information in the reports about the nature of the
service interruption and the duration hindered a more complete evaluation of the issues. GeoComm also
found that the outages reported as fiber and/or cable cuts were usually attributed to the “Network” class
of outages. The actual number of network-related outages, based on the minimal notes per outage report
that appear to be a legitimate network issue remains within single digits per year.
Federal Communications Commission (FCC) Network Reliability and Interoperability Council (NRIC) Best
Practices that cover notification to public safety regarding failures, congestion, and low cost alternatives
when end office to selective router connectivity is lost, might provide an opportunity to discuss ways to
maximize the ability of public safety to continue operations (NRIC 7-5-0569). In addition, outage reports
should be completed in a timely manner in order to identify and understand alternate solutions in support
of continued operations.
Network Infrastructure Best Practices
The opportunity to discuss and observe 9-1-1 operations with the 18 PSAP authorities yielded valuable
information. While the county Joint E9-1-1 Service Boards and PSAPs have worked to maintain adequate
services, there is still ample opportunity to improve the level of understanding of network standards,
network best practices, and operational alternatives throughout Iowa.
The recognition of updated standards and practices will support improved redundancy and diversity for
both wireline and wireless networks which are subject to disruption from both man-made and weather-
related events.
For example the common interpretation that the minimal installation of two trunks per exchange3 is
intended to provide adequate connectivity between the local serving office and the PSAP. This
interpretation fails to acknowledge that if these two paths, which each allow one active call, are in the same
conduit, trench, or pipe from the origin to the termination at the PSAP, then they both are vulnerable to a
single service interruption because there may not be geographic diversity of the routing path. In emergency
communications, both redundancy (duplication) and diversity (separation) are important elements. The
3 ASTM F1381, 4.2.1.2, the minimum of two trunks per exchange is recommended in all cases
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-10
Public Safety Consulting, GIS, and Software www.geo-comm.com
NRIC has as its stated mission “Partner with the Federal Communications Commission, the
communications industry and public safety to facilitate enhancement of emergency communications
networks, homeland security, and best practices across the burgeoning telecommunications industry.”
NRIC reinforced the importance of both redundancy and diversity in BP 7-7-0580, “Network Operators
and Public Safety Authorities should apply redundancy and diversity (e.g., concepts set forth in Best
Practices 0566, 0573), where feasible, to other network links considered vital to a community's ability to
respond to emergencies.”
GeoComm requested Conditional Routing plans from the PSAPs interviewed, from the state, and from the
E9-1-1 service provider. GeoComm found that local level information was often incomplete and unable to
be validated by the E9-1-1 service provider.
It is also apparent that additional education about the Conditional Routing plans per PSAP might be an
opportunity to improve network understanding. Based on PSAP information that was provided to
GeoComm, 9-1-1 calls will automatically roll to local administrative lines if designated E9-1-1 trunks are
disabled. However, the escalation of Conditional Routing levels and further development of alternate
routing plans might benefit from additional discussion and clarification with PSAP management. The need
to fully define the internal PSAP processes for causing alternate routing to take place, other than that
described above, should be clearly outlined within local Standard Operating Procedures (SOPs). These
procedures should be verified by the service provider as being the accepted method of handling
interruptions of service and exercised on a regular basis with appropriate assessment of any additional
changes that may be necessary. It is critical that PSAP fully recognize all the alternatives that exist for
rerouting calls. Considerations for the selected alternate PSAP should include the impact of shifting call
volume, staffing, available workstations, trunk lines, and effective voice and data exchange for the prompt
dispatch of emergency services.
Network Architecture
In 1988, Iowa established a framework for implementation of E9-1-1 service. The framework authorized
agencies to create governance and funding mechanisms to provide E9-1-1 services at the local level. The
Joint E9-1-1 Service Board have installed and managed a traditional 9-1-1 network utilizing leased services
and facilities which includes voice trunks, data circuits, selective routers, and contracted database
management services; as well as direct trunking from designated local telephone company end offices to the
PSAP and locally maintained databases for wireline address location information in lieu of selective routing
and contracted location database services. These local 9-1-1 systems effectively provide for delivery of
legacy (traditional hard wired telephone land-lines) 9-1-1 calls to the PSAP appropriate for the caller’s
location, with location data being displayed for the answering 9-1-1 operator.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-11
Public Safety Consulting, GIS, and Software www.geo-comm.com
A state E9-1-1 Program was later authorized to oversee the implementation of a robust wireless E9-1-1
system serving all citizens of the state of Iowa. This approach was due in part to wireless carrier preference
and their urging to allow wireless carriers to deal with a higher level of government rather than numerous
individual counties. It was determined that management of the wireless 9-1-1 system for Iowa would be
most effective at a state level. This action resulted in a bifurcated 9-1-1 system in which wireline service is
managed at the local level and wireless service is managed through the state 9-1-1 Program Office. The
systems in place support two distinct ALI database methodologies, with a defined network component for
voice and data as defined by the configuration. Both direct trunking and selective routing provides two call
delivery systems relative to maintenance, local responsibility, and workload, as well as limitations.
The resulting outcome is today’s environment in which Iowa maintains two separate networks for 9-1-1
services. These systems work together to ensure that any citizen or visitor who dials 9-1-1 from a wireline
or wireless device is immediately connected to the appropriate PSAP based on the location of the wireline
phone or the specific coverage area of the engaged wireless tower sector.
The wireless 9-1-1 ALI data network is limited and normally requires two data circuits between the PSAP
and the dataset to assure access to and retrieval of location data associated with the wireless call. This
service is provided by a contractor and the exact ALI network configuration; including levels of redundancy
and diversity have not been reported. The wireline ALI dataset is commonly, but not always, maintained at
the PSAP for direct trunk deployments. The nature of the redundancy and diversity of such connectivity is
information not presently known.
The 9-1-1 network architecture in Iowa exists in several classes of call origin and configuration. The
wireline 9-1-1 services may be delivered to the PSAP via selective routing as provided by interconnection
agreements between E9-1-1 telephone service providers and Century Link. Alternately, some E9-1-1
telelphone service providers in cooperation with the PSAP and their Joint E9-1-1 Service Board, maintain
direct connectivity between the end offices and the PSAP to deliver the ANI which is used to prompt an
inquiry of the locally-maintained ALI database (usually maintained at the PSAP but not always). There is no
selective routing of the wireline calls in such direct trunking situations.
The wireless 9-1-1 calls are all selectively routed and delivered by the wireless carrier to the CenturyLink
selective router and then to the local PSAP, based on routing tables developed in cooperation with Intrado,
the wireless database manager, and the PSAPs, utilizing guidance offered by the E9-1-1 Program Office. The
wireless selective router is located in Des Moines.
The current wireline 9-1-1 architecture offers some restriction of the PSAPs’ ability to transfer both the
voice and location data associated with E9-1-1 calls between PSAPs. GeoComm found that PSAPs reported
the need to transfer wireline E9-1-1 calls to neighboring PSAPs that were served by a different and separate
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-12
Public Safety Consulting, GIS, and Software www.geo-comm.com
wireline selective router (Tandem/E9-1-1 Control Office) within the current network configuration. While
specific local accommodations may exist, the normal process for such transfers requires the sending and
receiving PSAP to be served by the same selective router. In the absence of inter-tandem connectivity, it is
more likely that only the voice portion of the E9-1-1 call will be transferred. This limitation also exists
when a PSAP using selective routing and remote database services seeks to transfer a 9-1-1 call to another
PSAP which utilizes direct trunking and local database management.
This process denies the receiving PSAP the opportunity to “see” a plotted map location or verify the
existence of landmarks on shared mapping applications, and creates a need for the caller in crisis to again
repeat the location information to another call taker, all of which precedes actual dispatch of emergency
services.
Network Stability and Risks
There is ample historic reference to network redundancy and diversity that can be assessed within Iowa.
According to the NENA Master Glossary of Terms, diverse routing is defined as “the practice of routing
circuits along different physical paths in order to prevent total loss of 9-1-1 service in the event of a facility
failure.” Redundancy is defined as “the duplication of components, running in parallel, to increase reliability;
A backup system (either a device or a connection) that serves in the event of primary system failure.”
It is understood that from the local serving office to the PSAP, even redundant pathways are not fully
effective unless they are also diversely routed. The description of the wireless network in Iowa appears to
indicate that the last portion of the path between the selective router and the PSAP is shared by wireline
and wireless services for those counties that utilize selective routing and contractual location database
services. This would indicate that the vulnerabilities that exist for the wireline network also exist for the
wireline network at this point in the network.
In Iowa, there are single point of failure risks within the network, and these failure points present challenges
to the PSAP and the state in ensuring on-going availability of 9-1-1 to the citizens they serve. For example
if a backhoe accidently digs up a cable, the lack of diversity or redundancy in any part of the wireless or
wireline E9-1-1 network can result in areas of the jurisdiction or state being without 9-1-1 service.
In the event that an end office become isolated, which means 9-1-1 calls cannot be routed beyond the local
office exchange(s), it becomes necessary to have a local number within the affected exchange(s) to receive
calls for at least basic 9-1-1 service to continue. This level of emergency planning requires advance
considerations and potential expense to the PSAP; however, this emergency planning activity is a legitimate
and necessary consideration in order to reduce failure potential and preserve continuity of operations.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-13
Public Safety Consulting, GIS, and Software www.geo-comm.com
Any individual selective router can also fail, creating interruption of the normal E9-1-1 call process. The
E9-1-1 telephone service providers and the PSAP should have a clearly defined plan for such instances,
including initial detection of the outage, effect on call processing and/or pre-determined alternate routing if
such levels of service exist within the extant network. Plans work best when both the provider and the
PSAP are partners in the development. The PSAP has the responsibility to reinforce the planning effort by
training the staff.
A single selective router serving the 9-1-1 needs of all wireless customers within an entire state as well as
the wireline users within 42 counties without support by an alternate means to transmit the crucial location
data to the PSAP during periods of failure, creates another point of potential vulnerability in the network
and increases risk. To avoid the level of risk associated with such single points of failure, or at least in a
meaningful effort to mitigate the impact on service delivery, the GeoComm assessment effort sought to
determine what emergency plans existed at each PSAP. Specific guidance for the PSAP to use when
developing emergency plans can also be found within current standards other than the cited ASTM
document.
As the integration of the planned IP 9-1-1 network continues in Iowa, the opportunity for greater
interconnectivity between selective routers can be further explored. The current deployment of the
selective routing feature, recognized as an integral part of E9-1-1 service, leaves opportunity to make
improvements. The expanded network should make it easier to provide inter-tandem connectivity among
the locations served by these selective routers.
Selective Router/Location Type Area Served
Cedar Rapids DMS 100 13 counties – wireline
Council Bluffs DMS 100 12 counties – wireline
Davenport DMS 100 13 counties – wireline
Des Moines 5E 42 counties – wireline
All PSAPs – wireless
Sioux City DMS 100 14 counties
Every PSAP should work diligently to identify a fully capable alternate PSAP to which their E9-1-1 calls could
be routed during a local interruption of service. It is critical for every PSAP to plan for an outage that may
be longer than a few hours and affect services beyond 9-1-1 call delivery. The ability to effectively move
voice and data between physically separated points, across a secure network requires preplanning. Also,
the existence of adequate transport paths is required. The traditional network that serves each PSAP today
may or may not be capable of meeting this challenge of processing the call for service. The consideration of
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-14
Public Safety Consulting, GIS, and Software www.geo-comm.com
how to page, alert, and dispatch a response agency must be included in continuity of operations plans.
Further, continuity of operations plans should be exercised during periodic training scenarios. Follow the
training, a candid, and credible after action reports should be developed to provide documentation of
needed improvements in the sustainability and survivability of critical emergency communications network
functions.
Next Generation Network Planning
In Iowa, distinct action has already begun to design and implement an Internet Protocol (IP) network to
transport calls between PSAPs as well as from the selective router to the PSAP for initial call processing.
These efforts, although modified by the use of network and PSAP gateway devices, hold some promise of
enhanced services across the state and should be viewed as an opportunity for more robust wireless and
wireline alternate routing
As cited within “A National Plan for Migrating to IP-Enabled 9-1-1 Systems” provided by the National
E9-1-1 Implementation Coordination Office, September 2009, the issues across the nation are likely to
include the following:
“The primary long-term goal for migrating to IP-enabled emergency networks is to allow the general public
to make a 9-1-1 ’call’ from any communication device in any mode (e.g., voice, text, or video) and potentially
to furnish additional incident information (e.g., photo, crash data). This requires a fundamental change from
the voice-oriented, circuit switched networks that currently exist as the only conduit into 9-1-1 centers.
Along with new policies and procedures, such networks can be combined within an interconnected system
providing true interoperability across county, State, and international borders and among disparate
emergency response and disaster management agencies.”
The expanded capability of NG9-1-1 has the potential to facilitate incremental, scalable subsets as part of
the overall system. The design of a network, which could support alternate forms of communication,
media, and access than the traditional 9-1-1 environment has value to callers and service providers.
In addition, the implementation of NG9-1-1 offers greater potential to increase public and responder safety
through interconnectivity and interoperability; reinforcing collateral efforts presently underway for
statewide interoperability planning in Iowa. In the realm of emergency management, the migration to
NG9-1-1 networks, even if incremental, can facilitate “real time” distribution of event information, allowing
for better overall resource management, reducing the cost to every community in terms of time, materials,
availability of services and risk of injury, as well as reduction of equipment damage and replacement.
NG9-1-1 will allow PSAPs to transfer and share information with other call centers or response agencies
more quickly and with greater accuracy, regardless of the location of the caller. During the initial
deployment period of NG9-1-1 and for a period of time until all legacy PSAPs have completed the migration
process thereafter, specialty gateway computers identified as legacy network and legacy PSAP devices, are
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-15
Public Safety Consulting, GIS, and Software www.geo-comm.com
likely to be used to translate the transmitted caller information back and forth between digital and analog
formats. The current regulated connectivity to selective routers, isolated from each other in today’s
environment, if modified through revisions would allow access to crucial data at a level not widely available
today. This single feature, providing the ability to transfer 9-1-1 calls within and among jurisdictions along
with all associated call data, can improve service delivery at the local level. This network design feature is
noted here since the deployment of an IP network in Iowa could be a means to facilitate this service
limitation.
GeoComm recognizes the likelihood that as NG9-1-1 deployment is discussed and/or alternate choices are
offered for service connectivity in present systems, there may be some perceived changes of the current
roles and responsibilities among all entities involved in providing 9-1-1 services. It is for this reason that the
existing legal and regulatory environment will likely also need to be modified, so those that wish to
participate in such efforts can effectively adopt the new technologies and arrangements. The consideration
of modifications of such language changes does require the cooperation of legislative and regulatory
agencies; candid and early discussion with the representatives of such groups may be helpful.
This more universal approach to 9-1-1 service and emergency communication functions also allows for the
incremental introduction of modifications, providing an opportunity to identify, demonstrate, and resolve
the often unanticipated consequences of system changes. It is important, however, that stakeholders have a
role in the coordination of these efforts. The emphasis on standards and best practices will further define
such endeavors as the full potential of even partial modifications are supported by adequate technology,
levels of connectivity, most reliable points of connectivity and reasonable costs. In such efforts, specific
changes to regulation, legislation, and system management will be most successful when discussed with
stakeholders in advance.
Managing the Migration
Managing the migration to NG9-1-1 requires coordination and collaboration. GeoComm recognizes that
the discussion about how best to achieve NG9-1-1 readiness remains an on-going discussion point; both
end-to-end managed solutions and independently-owned and operated systems have emerged. The initial
promise of a standards-based approach, supporting open market purchasing, remains elusive as does the
final resolution of appropriate regulatory adjustments to open and level the field for multiple players. NG9-
1-1 needs a champion or perhaps a group of champions to assist the state E9-1-1 Program and the 9-1-1
Council advance the migration of NG 9-1-1 implementation and funding.
The NG9-1-1 effort may be long and tedious, requiring multiple interagency agreements, political support
for modifying legislation, and funding that most likely will not be less than what is being spent today.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-16
Public Safety Consulting, GIS, and Software www.geo-comm.com
In such efforts, there will always be some who perceive an erosion of their authority, and others that seek
to become more powerful; such non-productive behavior can be tolerated as long as it does not
substantially impede the progress of the effort.
The state and county government entities that must make this new system work, on behalf of their
constituents, should perhaps focus first on how it should be managed. It will be important to clearly
identify all the points that will need to be defined, revised, and re-authorized in order to accomplish the
goal, and then set upon a thoughtful plan for achieving those individual objectives that support the larger
goal.
In this evolving discussion and predictable debate, the criteria for initial, partial, and even full acceptance
should remain focused on E9-1-1 customer service, responder safety, and effective resource management.
The funding paradigm in use will offer some controlling influence as well. No public service is free and
costs are not always as clearly identified as decision-makers would wish, creating some additional fiscal
considerations.
As the NG9-1-1 migration continues, the debate already underway over additional costs and system
management issues that arise will force further discussion of what is the proper, most efficient array of
PSAPs or network configurations throughout Iowa. Based on the assessment and analysis done to date, it
is clear that in some counties, the functions that relate to actual 9-1-1 call taking and dispatch are often
performed by individuals who have many duties within a parent organization. It is clear that wireless and
wireline 9-1-1 calls can be managed on the same trunks, and service delivery is fundamentally the same for
all classes of calls although the funding and networks are distinct. Each PSAP must maintain specialized CPE,
adequate training and appropriate certification, appropriate network connectivity, ALI database
maintenance, and personnel management efforts regardless of call volume.
GeoComm finds that the wireless service providers may have the greatest to gain from such efforts; their
customers will be the first to utilize the future features heralded as fundamental in the NG environment.
Consideration of the role of the wireless providers in the development of regulation, timelines, and
equipment needs at the PSAP may be helpful since their products and services may offer alternate access
methodology and media transmission opportunities.
A Shared Network Approach in Iowa
In addition, the nontraditional public safety and service entities (health care facilities, transportation
services, schools) may find access to emerging event information via this enhanced network. These
nontraditional entities should be added to the stakeholder list for added value and possible revenue
contribution. The planning effort for a transition to IP based networks and an initial transition to NG9-1-1
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-17
Public Safety Consulting, GIS, and Software www.geo-comm.com
should include consideration of these simple questions: who else could use this information in real time?
Who might be our partners in a shared network or shared services environment?
The state may also want to consider non-traditional partners in the network infrastructure of NG9-1-1
services. In the past, the 9-1-1 network was proprietary to emergency services. Other services have not
shared the network on which 9-1-1 calls were transported. However, in the NG evolution the network
elements, assuming adequate security can be achieved when required, could be shared between and among
a variety of services not necessarily limited to only other emergency services.
Non-traditional partners such as other government service agencies, non-government agencies; and non-
proprietary infrastructures may be leveraged to share costs or produce more efficient network use to keep
costs contained while continuing highly productive service levels. As stated above, the exploration of new
technology and new non-traditional partners with the appropriate controls and essential network security
can bring expanded efficiencies and potential cost savings to the 9-1-1 network.
Conclusions
The 9-1-1 systems, referred to as traditional or legacy, was developed in cooperation between PSAPs and
E9-1-1 telephone service providers. Often, the E9-1-1 service provider held the role of sales manager,
service manager, new order coordinator, system performance monitor and equipment vendor. Today,
nearly all of these services can be provided by separate entities or offered as package, or managed service
plan. The issue is to carefully consider the impact of choices as it relates to the inter-operability of the
components.
The level of redundancy and diversity should be well understood by PSAP staff and has application to the
selective routers in use today, as well. The level of such network services may also impact emergency
planning and formal Continuity of Operations Plans as the PSAP seeks to best manage the level of service
available in the wake of disaster, which destroys buildings, or creates a long term interruption of service
accessibility.
Single points of failure for any network serving public safety are a threat to the successful resolution of all
9-1-1 calls, the safety of field responders, and the integrity of the effort to provide such services. The
network considerations should assess each component, for the likelihood of failure as well as the immediate
processes to recover from such failure, even if perceived as low risk. This analysis includes local serving
offices, central offices (wireline and wireless), selective routers, database access links (local or remotely
held), alternate access to services for the PSAP as well as its alternate site and other preferred transport
paths for voice and/or data used in completion of the mission related to 9-1-1 services.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 3-18
Public Safety Consulting, GIS, and Software www.geo-comm.com
In Iowa, the legislative and regulatory language we find today, will need to be modified to support the
choices that can arise from pursuing a shared network and migrating to NG9-1-1. Today, the existing
tariffs favor, the long standing and serving telephone companies; there are defined limits to the right of
connection to selective routers and the lingering number of direct trunked systems, the type of data that
can be stored as well as access to it. These changes may need to precede the actual planning effort or may
be in progress while planning continues. The need for clear, well defined regulatory language and
assignment of responsibility is however important.
The requisite fiscal resources to operate a PSAP have increased and will in all likelihood continue to
increase for some time, until all transition to NG9-1-1 are completed. The resources necessary to support
the current PSAP configuration are substantial and efforts to better control such costs are appropriate.
These statements are being raised in many states and are worthy of continued review and discussion, as the
number of PSAPs does have a direct impact on the amount of funding that can be available for distribution
under current rules in Iowa.
The stakeholders in Iowa will need to consider the advantages of these improvements as well as the costs.
The concerns over governance and funding will need to be weighed against the level of service that can be
demonstrated and the more intangible elements of not having to deal with certain issues any longer. The
technology which would allow all calls to travel across a single network is attainable. The management of
such systems however is a substantial responsibility.
Public Safety Consulting, GIS, and Software www.geo-comm.com
4 Analysis of Current PSAP Structure and Workload
Analysis of Current 9-1-1/PSAP Environment - Wireline and Wireless
All of the Public Safety Answering Points (PSAPs) visited identified wireline and wireless 9-1-1 lines
individually, but all came in on the same telephone system, and appeared seamless to the call taker as any
9-1-1 call. GeoComm concludes from the site visits that this two 9-1-1 network into one telephone
system is common throughout the state. However, many PSAPs had separate administrative lines on a
physically different telephone system creating a multitasking challenge when both emergency and non-
emergency telephone calls occurred simultaneously.
While there may be other reasons to consider the impacts of two networks, there does not seem to be a
negative impact of the two networks from a call answering perspective as the local CPE telephone
equipment accommodates the dual network answering process.
In GeoComm's examination of 18 PSAPs (three PSAPs from each of the six Homeland Security Regions
within the State of Iowa), two key items from the APCO/NENA American National Standards PSAP Service
Capability Criteria Rating Scale were utilized. The PSAP Service Capability Criteria Rating Scale was a joint
effort between APCO International and NENA to develop an American National Standards Institute (ANSI)
standard to assist PSAP managers and their Governing Authorities in identifying the current level of service
capability. The APCO Standards Development Committee facilitated development, and it was approved by
ANSI on November 3, 2008. A revised edition was published under the same rules in 2010 and includes
day-to-day operational elements.
The initial focus of this rating scale was to rate a PSAPs day-to-day operations as well as survivability during
terrorist attacks, natural disasters, health emergencies, and other major incidents. For each item the
available ratings are “Standard," which reflects the minimum criteria for PSAPs in the category; “Advanced,”
which represents a higher level of service; or "Superior," which represents the best example of service
within the item.
The 9-1-1 system throughout Iowa generally meets these basic standards set forth by the Association of
Public-Safety Communications Officials (APCO) in their established ANSI standards for PSAP Service
Capability.1
All PSAPs GeoComm observed met the "Standard" criterion for Item 3.2.1, receipt of Enhanced
9-1-1 (E9-1-1) calls using static Automatic Location Identification (ALI) functionality (APCO/NENA
ANS 1.102.2-2010, Section 3.2.1.1).
1http://www.apcointl.com/new/commcenter911/documents/APCO-NENA-ANS1-102-2-2010-web.pdf
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
All PSAPs have Customer Premise Equipment (CPE) to enable the receipt of E9-1-1 calls with
associated data [Call Back Number (CBN) and caller location information] from callers in the
PSAPs jurisdiction; for static Voice over Internet Protocol (VoIP), and wireless Phase I types of
calls.
In most instances, this level of standard compliance extends also to wireline 9-1-1 calls as well.
GeoComm notes; however, that E9-1-1 by definition2 includes selective routing and selective
transfer. In some areas direct trunks from the local exchange office to the PSAP are utilized and
local databases are maintained to provide caller location identification without selective routing in
place. The call taker still receives both the ANI and ALI which is a fundamental requisite of E9-1-1
service delivery, the process does however occur without the utilization of all the regularly
recognized elements of the definition as cited.
GeoComm observed that the PSAPs visited, met functional requirements of the "Superior"
criterion for Item 3.2.2, receipt of E9-1-1 calls using dynamic ALI functionality (APCO/NENA ANS
1.102.2-2010, Section 3.2.2.3) by providing wireless Phase 2 service for all carriers serving the
jurisdiction.
9-1-1 Workload Assessment
GeoComm evaluated the non-emergency call volume, incidents, ancillary duties, and responsibilities in
order to assess the PSAP workload and the impact ancillary duties have on the PSAP operations.
Out of the 61 agencies that returned GeoComm's survey, all but two handle a variety of ancillary duties and
responsibilities. The duties included: assisting with national crime database data entry, queries, and
maintenance; maintaining local records systems by entering tickets, police field interrogation reports,
accident reports and various other forms of documentation; and performing a variety of jail functions. As
with many agencies across America, dispatchers are often tasked with a multitude of ancillary duties in
addition to answering 9-1-1 and administrative telephone lines and dispatching units to calls for service.
Almost half of the agencies that GeoComm visited tasked dispatchers with various jail duties that required
them to go into the jail during their shifts, leaving the 9-1-1 telephones and police radio unattended for
short periods of time.
Leaving telephones and radio unattended exposes the agency to missed calls for assistance, enhanced
liability, officer safety concerns, and other service performance issues for the community. If the dispatcher
is away and a 9-1-1 call is missed, the department is potentially liable for simple or gross negligence. In
addition, dispatchers are the lifelines for officers, deputies, firefighters, and EMS personnel in the field.
2A telephone system which includes network switching, data base and Public Safety Answering Point premise elements
capable of providing automatic location identification data, selective routing, selective transfer, fixed transfer, and a call
back number. The term also includes any enhanced 9-1-1 service so designated by the Federal Communications
Commission in its Report and Order in WC Docket Nos. 04-36 and 05-196, or any successor proceeding.
http://www.nena.org/resource/resmgr/Standards/NENA_00-001_V16.pdf
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
If a field unit needs immediate assistance and the dispatcher misses the radio transmission because he/she is
distracted by jail duties, the department may be legally liable.
As noted above, the majority of PSAPs handle a variety of ancillary duties that do not require leaving the
PSAP. While each PSAP varied in activity level, during the time GeoComm observed, none of the agencies
appeared to be overloaded to the point where the personnel could not effectively manage the ancillary in
addition to their primary call taking and dispatching functions.
GeoComm was able to obtain detailed information about ancillary duties from the 18 PSAPs visited. It was
difficult to obtain complete and detailed information from the data collection tools sent to all Iowa PSAPs
as many of the forms were returned incomplete without sufficient information to assess the level of
ancillary duties in the PSAP. However, based on the direct observations and data collected via survey,
GeoComm finds that 97 percent of the PSAPs in Iowa perform a variety of ancillary duties on behalf of the
local agency and these agencies are busier than is evident by analyzing 9-1-1 call volume alone. Examination
of total workload must take into account all duties of the PSAP personnel.
Analysis of Staffing Considerations
GeoComm gathered staffing data via the online data collection tool and through interviews conducted
onsite at selected PSAPs. GeoComm discovered several PSAPs reporting that all budgeted positions in
their communications centers are currently filled and in some cases, there have been no personnel
vacancies for several years. None of the PSAPs interviewed reported any problems attracting and hiring
qualified candidates.
97%
3%
Percentage of PSAPs
with Ancillary Responsiblities
Ancillary Duties
No Ancillary Duties
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm attempted to assess whether allocated staffing and staffing needs are in sync which is extremely
difficult without conducting a detailed staffing assessment. Through PSAP interviews, some agencies
reported a need for additional budgeted positions as authorized staffing levels do not meet the current and
expanding needs of the center. Not only is call volume affecting the perceived need for additional positions
but current staffing only meets minimum coverage requirements when all positions are filled. This
translates to a staffing shortage and the need for overtime when an individual is sick, on vacation, in
training, or for any other reason not available for work. Excessive overtime causes many adverse issues for
PSAPs and is a primary cause of high employee turnover in the industry. PSAP managers who continually
struggle to maintain minimal coverage report feelings of vulnerability as a result.
During GeoComm’s analysis, we did not discover any standardized processes being consistently used to
determine appropriate staffing levels in the PSAPs. Without using data driven processes to determine
staffing levels, there is little validity to the staffing numbers currently in place or the perception of adequacy.
Although staffing levels may seem to be appropriate at many agencies, the current methodology used to
determine these levels, if one is employed at all, may not produce accurate results.
There are two primary types of positions in today’s PSAP. The first is a position justified by the need for an
individual to occupy a workstation or console in the communications center. These are known as
“coverage” positions. These positions exist so that responders in the field have a resource available when
they call into the communications center by phone or radio. They also exist so that the public reaches a
communications professional when calling for help via the telephone. Traditionally, coverage positions
require staffing 24 hours per day, seven days per week, and 52 weeks per year. In many cases, these
coverage positions handle all of the duties required in the PSAP along with other ancillary duties (jailers,
records clerks, receptionists, etc.).
The second type of position in the PSAP is known as a “volume based” position. These positions, if
applicable, fluctuate in number based on call or work volumes. Many PSAPs increase staffing levels due to
an increase of call volume during drive times, special events, holidays, tourist seasons, etc. Volume based
positions may also be impacted by ancillary duties required in individual PSAPs to meet specialized, local
needs.
As noted previously, there are a wide variety of ancillary duties performed in the various PSAPs throughout
Iowa, which certainly affect appropriate staffing levels at each PSAP. No two PSAPs are exactly alike and
there is no “cookie cutter” approach that will provide data to reveal whether staffing levels are as they
should be.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
Without a comprehensive and current evaluation of staffing needs that is based on industry accepted
standards, the PSAP is guessing at the appropriate staffing levels. The belief that the PSAP is either
adequately staffed or understaffed is not based on any quantifiable or validated data and may not be able to
be substantiated should the PSAP be called upon to do so either because of a service complaint or legal
issue.
Some industry accepted and specific resources that are available that will help PSAPs determine
communications center staffing levels include:
Association of Public Safety Communications Officials (APCO) Project RETAINS Toolkit 2.0
http://www.apcointl.org/new/commcenter911/retains_toolkit.php
National Emergency Number Association (NENA) PSAP Staffing Guidelines Report 54-501A
http://www.nena.org/general/custom.asp?page=PSAP_StaffingGuide
Erlang Traffic and Call Center calculators
Research has shown that there are significant staffing issues inherent to the public safety communications
industry nationwide. Identifying and hiring individuals who have the specific skills and talents to do this type
of work is a challenge. Successfully training individuals continues to be difficult while retaining employees
for a long period of time (until retirement) is the exception, not the rule.
In August of 2011, APCO’s Professional Communications Human Resources Taskforce (ProCHRT) issued
its final report that takes an in-depth look at the human resources issues facing public safety
communications and specifically addresses these hiring and retention issues.
The ProCHRT taskforce was created to examine human resource, staffing, training, and certification issues
that are directly related to the front line employee in our nation’s emergency communications centers.
The taskforce collected relevant data from all 50 states and the District of Columbia in order to develop
the document and report card to the nation.
The report gives a clear picture, state-by-state, of training and certification requirements, retirement plans,
labor laws, and whether or not 9-1-1 employees are considered public safety employees and/or first
responders. The report provides links for the State of Iowa. The links direct you to specific information
for training and certification requirements, retirement plans, and labor laws in the state. In Iowa, 9-1-1
employees are not considered public safety employees and/or first responders. The report also goes in-
depth, defining the communications center, its role in the provision of public safety services, and the unique
human resources challenges that exist in the 9-1-1 environment.
The report card produced by ProCHRT reveals very low grades as a nation in areas of state mandated
training, salary and benefits, in-service opportunities and emergency medical dispatch.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
All of these issues have a direct impact on hiring and retaining employees in the public safety
communications industry. This report reflects many of the issues that the State of Iowa faces and the data
reported will benefit PSAPs in the state as they develop plans to move forward and improve staffing issues.
Analysis of PSAP Training
Iowa legislation requires that front-line telecommunicators receive 40 hours of basic telecommunicator
training within the first year of employment. This legislation also requires that eight hours of continuing
education training be received in each subsequent year.
The 40-hour course is offered throughout the year at the Iowa Law Enforcement Academy (ILEA) in
Johnston, Iowa. Elements of this training include:
Basic Telecommunicator
National Incident Management System (NIMS)
Incident Command System
Relay Iowa (telecommunication service for the hearing and speech impaired community)
Special Needs
The eight-hour continuing education class is offered at several locations in the state throughout the year.
These in-service training courses are designed to provide the knowledge and skills necessary for
telecommunicators to perform their duties professionally, efficiently, and effectively.
A variety of topics and information are discussed. The curriculum is updated on an annual basis. The eight-
hour requirement may also be met locally, by a PSAP providing this training in-house. Several Iowa PSAPs
satisfy the requirement in this way.
The academy also provides other voluntary communications center related classes:
Communications Supervisor/Management
Communications Training Officer (CTO)
Advanced Telecommunicator (24 hours)
GeoComm’s analysis revealed that the 40-hour course requirement is being met by all PSAPs visited. This
is also true with the recurring training requirement. Records are kept at the ILEA.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
Several PSAP managers expressed concern over the content and consistency of the classes offered by the
state academy. There is a perception that the coursework does not adhere to industry standards and that
the content of classes is not consistent from class to class.
Industry Training Standards
APCO has led the effort in establishing ANSI standards for many common job functions in the PSAP. The
following excerpt from the APCO Standards website (www.apcostandards.org) explains its role in
standards development along with a description of the ANSI process.
The following ANSI standards that relate to common jobs in the public safety communications center have
been published:
Minimum Training Standards for Public Safety Telecommunicators (formerly known as APCO P33)
APCO ANS 3.103.1-2010
Minimum Training Standards for Public Safety Communications Training Officers APCO ANS
3.101.1-2007
Core Competencies for Public Safety Communications Manager/Director - APCO ANS 1.106.1-
2009
Further Training Considerations
GeoComm’s analysis revealed that Emergency Medical Dispatch (EMD), although not a requirement of any
state law or regulation (in which is the case in some states), services are provided by most PSAPs in Iowa.
The National Academy EMD Protocol is the product most commonly used by those surveyed. This
protocol requires an initial 24-hour certification course for the telecommunicator. This training equips the
front line telecommunicator to provide EMD, or caller-aid instructions over the telephone, as EMS/Rescue
services respond.
“As an ANSI-accredited Standards Developer (ASD), APCO International is required to adhere to
ANSI’s Essential Requirements for due process and has developed policies accordingly for the
development and coordination of American National Standards (ANS). These procedures provide a
mechanism for announcements of standards development activities, ensuring that qualified
organizations develop them, harmonization if duplicate or conflicting standards exist, and that the
approval of standards is coordinated. ANSI further ensures that access to the standards process –
including an appeals mechanism – has been made available to anyone directly or materially
affected by the activity under development and requires periodic reviews to ensure the standard is a
“living” document. Adherence to these guidelines ensures APCO’s standards development process
provides due process, balance, and lack of dominance, as well as provides opportunities to address
all interests and work together toward a common solution.”
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 4-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
This service allows individuals who are on the scene of an emergency to receive instructions over the
telephone to provide critical, often life-saving actions to patients prior to professional help arriving on
scene.
In order to maintain certification as an EMD, telecommunicators must complete 24 hours of Continuing
Dispatch Education (CDE) every two years. This can be accomplished in a variety of ways such as through
APCO’s EMD CDE program which produces one hour per month printed training articles and tests that
appear in the APCO monthly magazine.
Conclusions
GeoComm’s analysis and observations reveal that in general, emergency telecommunicators in the State of
Iowa receive the training mandated by legislation. It is also evident that industry accepted EMD services are
provided by numerous (but not all) PSAPs and that the individuals providing these services are certified in
the EMD process and well trained in the protocol. Sixty-seven percent of the PSAPs GeoComm observed
provide EMD services.
GeoComm's analysis reveals that most PSAPs are at full or near authorized staffing levels and are able to
handle the workload with voluntary overtime the majority of the time. It is very rare that forced overtime
is used, if at all.
Observations of the 18 PSAPs revealed that the dispatch staff and officers/deputies appear to have a good
working relationship. This was also apparent of the working relationship with other neighboring agencies
with the ease of contacting them when needed and their availability for backup when necessary.
Public Safety Consulting, GIS, and Software www.geo-comm.com
5 Radio Technical Analysis
Analysis of Radio Technology Systems
A wide variety of radio equipment is in use across the State of Iowa. There are typical systems which
appear to be reliable but with limited growth or interoperability features; and advanced systems which, if
widely deployed have the potential to take public safety agencies well into the future. During the data
collection process, GeoComm received 61 survey data forms from end users and conducted face to face
interviews at 18 local PSAPS. The analysis provided here is based on the data collected from the 61
responding agencies and the 18 PSAPs’ jurisdictions.
Throughout Iowa, the most common radio technology in use today is VHF conventional radio. This typical
system consists of base stations, which may or may not be repeaters, and subscriber radios (mobiles and
portables). This conventional-type equipment comprises approximately 79 percent of the current radios
systems in Iowa. The more advanced systems are the remaining 21 percent and are identified as trunked
radio systems.
Radio Frequency Band
Another factor involved in the analysis of the radio systems is the frequency band or bands available for use
by any given agency. In many cases agencies have the ability to operate on multiple radio bands, thereby
enhancing their ability to interoperate with nearby agencies. Today approximately 88 percent of the
systems in use in Iowa have at least some ability to operate on the VHF radio band. This public safety band
is the one band where nearly everyone can hold at least one radio conversation. The frequencies in use for
interoperability are assigned on a statewide basis, but coverage of any given conversation is limited to the
range of the immediate base or repeater station. Thus, while a user from the northeast corner of the state
may be able to travel to a remote county in the southwest and still be able to arrange a car-to-car
communication with a local agency, that user will not be able to call back to his or her own dispatch center.
The next most common radio band is the UHF public safety band. The responding agencies operating on
this radio band are all also able to operate on VHF radio band. The UHF band in Iowa appears to be used
primarily for tactical operations or by other support agencies, such as transportation. Just over 26 percent
of the responding agencies report the ability to use UHF radio. Like VHF, this band is also subject to
meeting narrowband operation requirements by the end of 2012. Unlike VHF, agencies did not report the
ability to use this band for cross-jurisdictional operations.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
The 700/800 MHz band, which contains the newest frequencies allocated for public safety use, can be
accessed by approximately 18 percent of the responding agencies. The activity on both the 700 MHz and
the 800 MHz frequency bands is reported as one because today’s radios can operate equally well on either
band, and the bands are seamlessly contiguous. The only difference between the capabilities and
requirements of the two bands are some regulatory differences. The primary example of those regulatory
differences is that the 700 MHz band is required to meet narrowbanding Phase II standard (6.25 KHz
bandwidth equivalency versus 12.5 KHz for Phase I) in 2017. There is no such requirement for 800 MHz
systems.
This chart displays the percentage of the total number of Iowa agencies that use each radio band. The total
is more than 100 percent since some agencies have the ability to operate on multiple bands.
One capability that is unique to the 700/800 MHz band across Iowa is the existence of a privately owned
trunked system that covers the entire state. In this case, unlike the VHF interoperable frequencies, a user
can roam the state and be within range of a “home” channel with a properly programmed radio. This
system is operated by the RACOM Corporation and is generally referred to as the RACOM system.
Although this system provides statewide coverage, only approximately eight percent of the responding
agencies use this system. While this is a small percentage it does represent some areas with a large
concentration of agencies, such as Scott and Black Hawk counties.
Modulation Methods
Modulation is the process the radio equipment uses to change voice or data into a signal that can be carried
across the radio spectrum. The typical methods in use today are either analog modulation or digital
modulation.
88%
26%
18%
VHF
UHF
7/800 MHz
0.0 20.0 40.0 60.0 80.0 100.0
Percentage of Radio Frequency
Bands in Iowa
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
Analog is by far the most common, with nearly 97 percent of local agencies either using this as a primary
method or able to switch to it for interoperability. Digital modulation is available in approximately 39
percent of the reporting agencies in Iowa.
Conventional radio systems can use either analog or digital modulation. Legacy trunked radio systems
generally used analog modulation, but newer trunked systems including standards-based P25 systems use
digital modulation.
Digital modulation is further defined by the method of creating the digital codes from voice patterns. In
public safety there is one accepted standard for use in the United States. This standard is known as Project
25 or P25 digital encoding. This standard refers to more than 50 different blocks of standardized processes
for the encoding, transmission, and decoding of the digital information. P25 is a work in progress and to-
date only some of the 50 blocks have been fully completed and accepted standards. P25 operation has the
advantage of allowing multiple manufacturers’ subscriber radios to operate on a single digital radio system.
P25 also requires that all radios be backwards-compatible with legacy plain-language (not encoded or
encrypted) analog radio operation. Proprietary systems do not necessarily provide this legacy
interoperability nor do they generally allow multiple manufacturers’ equipment to operate within the digital
system. There are other proprietary standards in use today, especially for older analog trunked radio
systems.
The responding agencies in Iowa indicate that nearly all (96.7 percent) of the agencies currently have the
ability to operate in an analog modulation mode. This is not surprising as most digital systems, especially
those complying with the P25 digital standard, retain an analog modulation legacy capacity for
interoperability with older systems. Approximately 40 percent of the agencies responding to the
GeoComm survey report having digital modulation capability. Of those agencies with digital capability, 96
percent are able to use P25 digital modulation.
Across the State of Iowa most agencies are still using analog radio systems, either trunked or conventional.
Where digital systems are in use almost all have held to the national P25 standard and retained the ability
to interoperate with their analog based neighbors. As additional agencies weigh the move from analog to
digital systems across the state, the need to interoperate both with legacy (analog) radio systems and the
overwhelming majority of P25 digital systems should continue to be addressed. By continuing the trend in
Iowa of migrating to the national standard of P25 digital public safety radio systems, agencies will be able to
build on the existing infrastructure by continuing to be able to access neighboring analog operations as well
as choose to purchase subscriber radios in a competitive market. Moving to proprietary digital systems
may or may not allow analog capability. Proprietary systems by design will lock agencies into a single
provider for future radio purchases.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
System Ownership
System ownership is quite varied across the State of Iowa. Approximately 85 percent of the systems are
described as locally owned, meaning a local agency, board, or other governing body owns and maintains the
system; the other 15 percent are leased from a commercial entity.
With the exception of intergovernmental agencies such as STARCOMM in the Sioux City area or the
Omaha, Nebraska based ORION system most of the locally owned radio systems are conventional VHF
radio systems, owned either by a local county government agency or a major population center. The
current trend in locally owned systems is to migrate from VHF analog conventional to a digital radio
system. The replacement system may be VHF or 700/800 MHz and may be either conventional or trunked.
In all cases any new radio system should include the ability to operate on both law enforcement and fire
service national mutual aid channels appropriate for the band in which their radios operate.
The most common leased system is the analog trunked system owned and operated by RACOM, a
privately-owned radio system supplier. This system is deployed statewide, although only about eight
percent of the surveyed agencies used the system. Many local agencies have been supplied one radio
capable of operating on the RACOM system, thus ensuring at least some level of interoperability across
much of the state. The RACOM system is an Enhanced Digital Access Communication System (EDACS),
which is a proprietary analog trunking standard. This limits interoperability in the trunking mode to those
agencies with a radio specifically capable of utilizing this method of operation. Not every manufacturer may
provide this equipment. RACOM is in the process of converting this system to a P25 digital trunked
system, a slow process that is expected to be complete around the year 2020.
The other leased systems are Motorola radio systems. These are split between analog proprietary systems,
and digital P25 interoperable systems. P25 digital systems are open-standards systems able to be accessed
by radios from multiple manufacturers.
15%
85%
Leased Agency
Radio System Ownership in Iowa
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
Narrowbanding
In light of the current Federal Communications Commission (FCC) regulatory requirement that all public
safety VHF and UHF band radios convert from wideband to narrowband operation on or before December
31, 2012, the GeoComm survey attempted to determine the ability of radio systems in the state to meet
this mandate. Radios currently operating in the 700 and 800 MHz band, both analog and digital, are not
affected by this requirement and therefore, there are no changes to these radios required before 2017 at
the earliest. Of the various VHF and UHF systems in operation the responding agencies show
approximately 87 percent are ready and able to make the transition before the mandated date. There is
considerable activity across Iowa with most agencies taking a proactive role in assuring continued operation
of their radio systems in a legal manner.
GeoComm’s on-site interview process revealed that most agencies are attempting to coordinate local
narrowband transitions with the anticipated change to narrowband of the Iowa State Police and other state
agencies. Therefore, it is important that state agencies continue to keep local agencies informed of any
changes, either to accelerate or delay the process of moving to narrowband. This coordination is needed
to make certain that interoperability between state and local agencies is maintained throughout the
transition.
Mobile Data
Mobile data systems have become important to many public safety agencies. With adequate bandwidth the
fire service can access building plans and hazardous material information, and law enforcement can retrieve
warrants, records, and other vital information. Approximately 36 percent of the responding agencies in
Iowa have some sort of mobile data capability.
0
20
40
60
Capable Not Capable
53
8
Public Safety Narrowband
Capabilities in Iowa
Responding Agencies
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
Of those agencies, 90 percent use commercial air card technology for data transmission. The commercial
air card relies on commercial cellular data carriers to provide connectivity to field units for data. Tied to
an on-board computer, usually an in-vehicle laptop, the user can access data on government servers,
download forms and some photographs, and return completed files to the fixed server. Air cards are
directly affected by the condition of the local commercial system and compete for access with every other
user. In some cases vendors can provide priority access, but when a system is already overburdened,
which often occurs in the vicinity of a local emergency situation, even high priority cards may have difficulty
accessing the data system.
Approximately 18 percent of agencies using mobile data have available some form of local private network
connectivity. The total is more than 100 percent because a few agencies use the air card as a primary, high
speed connection and a slower, local connection for backup. At the present state of technology, these
locally owned, private network data systems are slower than commercial air cards. The private data
network can rarely handle more than form information and some simple drawings or images. Transfer time
is extended on a private system. However, the private system is dedicated to the local government agency
and does not suffer from system overload by the general public during emergency situations.
The next step in mobile data transmission will come in the form of broadband data. Such a system is
currently in the earliest phases of conditional implementation, with a few agencies across the country able
to install early versions. While waivers of current regulations have been granted to a number of agencies
to create local broadband systems, the funding for those systems has not always followed. Given the
current state of the national economy it is unclear when full build-out of a national and interoperable
mobile data system will actually occur.
Agencies in Iowa appear to be well positioned as many of the applications currently running over air card
connections will also be able to transition to a national public safety broadband network.
90.9
18.2
0.0
20.0
40.0
60.0
80.0
100.0
Aircard Agency
Data System Technology
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
System Configuration
Regardless of the band or method of operation most agencies in the State of Iowa limit the dispatch center
to communication with local radio users only. Interoperability and multi-jurisdictional communications are
left primarily to the field unit. When communications occurs on the local frequency, or one of the few
interoperable channels programmed into dispatch centers, the center can hear and talk with out-of-
jurisdiction responders. When a field unit transmits on a neighboring agency’s home channel the field unit’s
PSAP generally cannot hear the conversation.
This mode of operation works reasonably well for most single-agency mutual aid responses or cross-
jurisdictional conversations. It does leave the unit leaving local center contact somewhat vulnerable to
“becoming lost” to his or her home center. Since all responders today appear to recognize and accept this
situation it is a manageable compromise for routine use. However when several out-of-area agencies begin
to respond to a more widespread emergency the situation can become unwieldy. With the technology
available today it is likely that many responders will be competing for time on the same channel. This can
lead to longer wait times to communicate between units and can delay critical transmissions.
Areas such as Sioux City, with its modern trunked system and multiple gateways to connect local system
users with extended legacy users, are the exception to the above rule. When out-of-jurisdiction agencies
enter the STARCOMM area they can access specific channels on their VHF radios that either will directly
connect to talk-groups in the 800 MHz system, or can be patched through dispatch to make the
connection. With proper planning this type of connectivity is available for most modern systems.
The RACOM system also is deployed statewide so users of that system have the ability to roam in most of
the state and still have system connectivity. Where the local agencies do not use the RACOM system the
local dispatch center is usually supplied with a RACOM enabled radio for emergency connectivity.
Conclusions
Agencies across the State of Iowa use multiple radio systems for daily operations. Those systems provide
adequate to good coverage of local jurisdictions, with little ability for the end user to operate in a normal,
day-to-day mode outside the local system. When users must range beyond their home radio system the
norm is to move to one VHF radio channel for fire, and another single channel for law enforcement.
VHF radio systems are by far the most prevalent public safety systems in Iowa. Even where other systems
exist, especially 700 MHz and 800 MHz trunked radios, the backup and interoperable systems are still on
VHF. Most PSAPs are able to communicate on the nationally recognized fire and law enforcement VHF
interoperability channels.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
PSAPs and other fixed locations are usually limited to a single law and single fire channel, while mobiles and
portables are typically programmed with the primary service channels for surrounding jurisdictions.
Most agencies in the state are moving proactively to meet the December 31, 2012 deadline to complete
narrowbanding for VHF and UHF radios. Those agencies are aware of State of Iowa agency plans and
schedules to narrowband state radios and have made a concerted effort to synchronize local
narrowbanding with state agency narrowbanding. State agencies that are responsible for moving their own
radios to narrowband must be aware that local agencies are indeed working to stay synchronized and must
also take a proactive role to keep all local agencies informed of any changes to the currently published
narrowband plans.
Along with narrowbanding, many agencies across the country are considering moving from analog to digital
modulation. There are several factors favoring moving to digital radio. First the physics of moving from
wideband to narrowband operation usually means a loss of effective voice range for any given radio system.
When that loss occurs within the primary coverage area of the user agency, some means must be found to
regain the coverage. On any given system, with no other system changes such as tower additions or height
adjustments, a digital signal will normally have a greater effective clear voice range than analog. This allows
the system user to regain most or all the useful range lost by narrowbanding.
Next, the current narrowbanding requirements are known as narrowbanding Phase I. There is a proposed
narrowbanding Phase II in discussion which will again halve the permitted bandwidth. It is unlikely that
analog radios will be effective at this bandwidth, but there are digital methods which will allow continued
operation for Phase II. Moving to digital systems today prepares agencies for the next steps in VHF and
UHF voice communications.
With nearly 40 percent of Iowa PSAPs currently able to use some form of digital communication the public
safety community in the state has demonstrated a desire to move in this direction. We can only expect
this percentage to grow as more agencies take advantage of federal grant programs requiring the purchase
of P25 digital capable radios.
Beyond voice communications the exchange of data to and from mobile units is becoming commonplace in
public safety. The entire national broadband movement is based on this desire to provide a truly
nationwide, seamless system of data exchange. That broadband system does not yet exist, yet more than a
third of Iowa agencies have some local mobile data capability. Today that capability is based almost entirely
on the use of commercial systems. As the national broadband system becomes a reality, and as the growing
federal regulatory movement encourages the transitions of these systems, we can expect Iowa users and
many others to transition to that higher speed, more robust system.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
To summarize, the state of both voice and data radio communications across the State of Iowa is well
structured to provide good local coverage for agencies and PSAPs. Local end users generally have the
ability to communicate with their immediate neighbors, but have limited (usually a single channel) capability
to interact with agencies from beyond that range. PSAPs are more limited in that they typically have only
one law enforcement, one fire, and one agency-to-agency channel for communication with other areas
agencies. PSAPs generally do not have remote backup facilities that would allow radio dispatch operations
should the local PSAP become incapacitated.
Mobile data exchange beyond the local member agency is essentially non-existent. Data systems today are
generally application specific and depend on full user registration and a common over the air
communications system.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-10
Public Safety Consulting, GIS, and Software www.geo-comm.com
Radio Interoperability Analysis
Interoperability between users must be considered from several different approaches to get a full and
accurate picture of just how interoperable the public safety systems are in Iowa. The most basic is end
user to end user, and then end user to dispatch, and finally the ability of dispatch centers or PSAPs to
interoperate between systems.
End User Interoperability
A comparison of the radio frequencies available to local agencies as provided by the responding agencies
shows that most agencies in the state have a number of options for mobile and portable users to
communicate across jurisdictional lines. The common denominator is the VHF radio band, where more
than 88 percent of local agencies have at least some operational capability. Except where neighboring
agencies have incompatible systems, such as is encountered with agencies whose primary radio system is
the Omaha-based ORION system. For those agencies mobile and portable radios are programmed with
the major operating frequencies of neighboring jurisdictions. This allows a user on a mutual aid assignment
to easily switch to the operational channel of the agency receiving the aid and interoperate as if the user
were a local unit.
The other method of interoperability on the VHF band that is common and able to be used by any
responder with a VHF radio (even when not the primary system for that user) is use of the common
VLAW and VFIRE nationwide interoperability channels. While the number of frequencies (only one per
service such as fire, law, EMS) is limited, these are common channels used across the nation and provide
interoperability over large areas. The ability to operate and interoperate is limited to receive or transmit
footprint of the individual radio, but the frequencies are common to most agencies throughout the state.
With the exception of users of the RACOM 800 MHz radio system, when a responder leaves his or her
local jurisdiction and switches to the service channel of another agency the user loses the ability to
communicate with the home dispatch control center. If the responder has switched to a channel
monitored by the PSAP serving the area where the responder is now located then he/she will be able to
communicate with that local PSAP. In the case of tactical radio channels, such as many fire-scene channels,
the user may be out of touch with any and all fixed base stations and have to rely on the ability of the
mobile units on scene to contact the appropriate center.
When a mobile unit roams outside its primary service area or responds to a mutual aid assignment the
mobile operator must change to an active channel in the new area. The PSAP is not normally able to
initiate contact with the newcomer until that happens.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-11
Public Safety Consulting, GIS, and Software www.geo-comm.com
As previously noted users of the RACOM 800 MHz radio system are an exception to the rule of not being
able to reach their home center when roaming. The RACOM system is an analog trunked radio system
that has some presence throughout the state of Iowa. With proper talk-group selection and programming
that authorizes roaming to all parts of the system it is possible for a RACOM user to maintain some
connectivity anywhere in the state. This does not mean that the user has total access to all normal talk-
groups, only that with the proper programming and system authorization some connectivity can be
maintained.
When users of 700 and 800 MHz radio systems roam outside the footprint of their home system they need
to have a second radio available that will operate on one or more VHF interoperability channels. The
reverse is generally not true, as most 700 and 800 MHz radio systems contain gateway channels allowing
the PSAP to patch together a VHF interoperability channel to a 700/800 MHz radio channel or talk-group.
This is understandable since most of the VHF systems were designed and installed long before public safety
had access to any 700 or 800 MHz radio channel. The 700/800 MHz radio systems were all installed with
the knowledge that surrounding users were operating on the VHF band and were usually designed to allow
incoming VHF responders to interoperate with the local system.
PSAP Interoperability
The interoperability choices for PSAPs and dispatch centers are far more limited than those for end users.
Other than local gateway radios tied to some trunking systems, such as that operated by STARCOMM, the
PSAP is generally limited to communicating on local channels or one or two national interoperability calling
channels. Radio connectivity between fixed centers appears to be limited to the point-to-point VHF radio
calling channel (155.370 MHz).
The local dispatch center is generally not able to talk on the home channels of units from foreign
jurisdictions. For day-to-day operations, this is quite normal and poses no problems. When local mutual
aid is required incoming responders are generally able to switch to a local channel, operated by the PSAP,
and initiate communications. The shortcomings of this system will not be seen until a wide area event
occurs, or the local PSAP itself becomes disabled.
In the event of an emergency situation requiring resources from outside the adjoining counties there will
only be a very few interoperability channels available for all staging and situation management. Should
remote responders attempt to use a simplex channel from their home area they will rapidly become “lost”
to the rest of the emergency management system, including dispatch. Also, such use of a frequency outside
its licensed area is a violation of FCC regulations and can interfere with licensed users of that frequency in
the new location.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-12
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm finds no capabilities in any survey or local interview response that indicates a remote or backup
dispatch center able to operate radio systems of an adjoining county. Should a natural or man-made event
cripple the dispatch center or if there be a need to abandon the PSAP, provisions have been made to
transfer 9-1-1 call taking capabilities to another PSAP. That transfer may be manual or partial, but it usually
does exist. No such capability exists for the radio system. In the event of such a failure the remote PSAP
may be able to accept and make record of incoming emergency calls, but they will not be able to assign
responders or dispatch the needed service. At best, they may be able to establish either a single-channel
connection or wireline connection to a mobile command post in the affected county where some calls
should be able to be dispatched.
An issue that appeared during our PSAP interviews was that the VLAW, VFIRE, and point-to-point
frequencies are being used for unintended purposes. These channels were never intended to handle
routine traffic. The V channels were developed to create national “calling channels” where transient users
could always establish emergency contact. Point-to-point is usually limited to either establishing a short
contact or relaying vital information. It was reported to GeoComm that these channels are often used for
“routine” or casual traffic between adjoining jurisdictions. This would include simple meeting arrangements
and typical routine “chatter” between units. These channels should be reserved for more vital uses,
ensuring their availability to immediately handle emergency traffic as well as making it a simple matter to
monitor the channel for activity without having to either disable the monitor or simply ignore the channel
due to overuse.
Interoperability Agreements
There are three major methods of establishing interoperability currently available in Iowa:
Shared common channels
Shared open systems
Shared proprietary systems
Nearly 84 percent use one or more shared common channels for interoperability. These are typically VHF
channels common to multiple radio users.
Shared proprietary systems account for about eight percent of the interoperability channels. These appear
to be mostly channels that are available to the RACOM system and are the result of compatible radios
being distributed to some communications centers around the state.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-13
Public Safety Consulting, GIS, and Software www.geo-comm.com
The final group of just over three percent is shared open system users. These are either P25 systems able
to operate in a legacy analog mode, or VHF systems with specific shared channels made available for other
users.
These shared channels are made available on either a formal or informal basis. The VLAW, VFIRE, and
point-to-point channels are in a separate category, shared by virtue of their national and state status for
public safety users.
Nearly 69 percent of interoperability in the State of Iowa is based on some form of a formal, written
sharing, and interoperability agreement. This is the desired method as it provides good control of
protocols and establishes who will use what resource during an emergency.
The remaining 31 percent depend on a “handshake” agreement, or simply on the fact that “that’s how we
always have done it.” This can work for local operations and with experienced users; however, agencies
should be cautioned that this type of agreement is problematic when a sudden emergency creates the need
for responders to use the local common system, and they have never done so before. The middle of an
emergency is a very difficult time to teach someone about common or normal procedures.
Another aspect of interoperability agreements is the coordination that the Statewide Communications
Interoperability Plan (SCIP) and regional Tactical Interoperability Communications Plans (TICPs) bring to
the process. The state of Iowa is proceeding under the NECP process to develop plans. To date
approximately 67 percent of local agencies have responded. While this level of participation is useful, it
leaves substantial room for improvement.
0
50
100
Shared
Channel Shared
Open
System Shared
Proprietary
System
51
2 5
Interoperability Agreements Across
Iowa Public Safety Agencies
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-14
Public Safety Consulting, GIS, and Software www.geo-comm.com
The current SCIP does a very good job of documenting existing conditions across the state of Iowa. It also
provides information regarding local and state contacts as well as many of the facilities available for
emergency communication across the state.
The SCIP also notes, as does this report, that while interoperability among regional responders is relatively
good due to dispatch centers common to multiple disciplines within an area, the mix of VHF, UHF, 700
MHz and 800 MHz systems across the state means that wide-area event responses will require the use of
multiple radios by many responders.
One issue that appeared in the interview process was a discrepancy between how agencies and regions
formalize interoperability planning and documentation. In most regions, PSAPs have formal agreements for
interoperability while others specifically state they have no written plans and that the information is
“universally known with no written documentation”.
Mobile Data Interoperability
The ability to share mobile data connections with responders from other jurisdictions does not appear to
exist today. While it may be possible to connect similar air cards to multiple systems, interoperability is
complicated by the need to use the same back-end database structures and programs between agencies.
Currently the FCC, manufacturers, and various professional organizations are moving to establish a
nationwide interoperable data and voice system. This is the 700 MHz broadband system commonly
referenced in current articles and federal activity. Once developed and standardized this broadband data
system will provide a common language and set of operating channels for public safety data connectivity.
Until that occurs it is unlikely that local actions will have much effect on the state of mobile data
interoperability.
Interoperability Training Exercises
According to the interviews and discussions GeoComm held with representative PSAPs, regular training
exercises do occur across the state of Iowa. The primary issues are that these exercises do not appear to
be uniform, with some agencies reporting monthly, others quarterly, and still others only annual sessions.
Most of these exercises review operational procedures and interoperability within the primary local
jurisdictions and usually include surrounding agencies. There appears to be little opportunity to either
discuss or train for a wide-scale disaster response. These exercises also assume either compatible (usually
same band) radio systems, or the immediate availability of radios on the appropriate band and pre-
programmed with the required channels.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 5-15
Public Safety Consulting, GIS, and Software www.geo-comm.com
As with interoperability agreements, there is a wide disparity in the processes used to develop training
plans and scenarios. Most agencies report using formal training documents, plans and programs for all
training, including interoperability. However some refer to interoperability training as addressing the
“flavor of the year”, or as working entirely toward operational issues involved in interoperability. Very few
identified the ability to address technical issues during any training exercise and none appeared to consider
addressing hardware or direct equipment compatibility issues during those exercises.
Most agencies report that their interoperability training processes are informal and no written process is in
place. Where plans have been developed they appear to discuss the frequency of training and makeup of
the exercise groups. There is little formal discussion of what goes into an interoperability training exercise.
Conclusions
Interoperable communications across the state of Iowa currently depend primarily on the ability of local
agencies to contact nearby local users on common VHF channels. Most agencies do this through a formal
agreement and shared channels. This system works well for daily operation and can handle the average
level of emergency and typical mutual aid event. Regional or statewide events will likely experience
difficulties as the few common channels become overloaded and new responders appear without the
necessary frequencies installed.
An important consideration should be the ability (or lack thereof) to communicate with public safety
agencies from other states. Iowa has significant exposures up and down the east and west sides, with major
rivers and bridges, all of which present a potential hazard. A concerted effort is required to become aware
of, keep current with and make required modifications to create and maintain effective communications
interoperability with Wisconsin, Illinois and Nebraska agencies, particularly. The common borders with
Minnesota and Missouri are less hazard prone, and most of those border counties still rely on VHF on both
sides of those borders, at least to some degree.
Most PSAPS are able to respond to transmissions from incoming first responders outside of their
jurisdictions; however, the PSAP cannot initiate first contact. There is very limited PSAP to PSAP
connectivity (usually on the point-to-point channel) and do not appear to have remote or backup facilities
in other counties that can handle catastrophic failure of the radio dispatching system.
The SCIP and TCIPs have been developed and the SCIP is regularly updated. Planning and documentation
for interoperability beyond the state level is uneven, with some areas having no formal documentation.
Training exercises are held regularly throughout the state of Iowa. Most are based on informal assessment
of current needs and concentrate on operational issues. Rarely are technological issues considered when
either creating or executing interoperability training exercises.
Public Safety Consulting, GIS, and Software www.geo-comm.com
Analysis of Other State Studies
Feasibility studies and assessments are available from a number of states; however, it should be noted that
there are many variables that can make a study unique and not fully comparable. Regardless of this,
GeoComm does recognize that there are state studies that can be helpful to Iowa to review and consider
as potential options. These studies can also serve as validation for current planning and activities underway
in the state.
North Carolina E9-1-1 Funding
North Carolina recently underwent a complete analysis and overhaul of its funding mechanism and
ultimately adjusted and modified its funding model. Initially, North Carolina’s 9-1-1 oversight consisted of a
board that was strictly a wireless board dealing with the issues of wireless 9-1-1 Phase II deployment and
fee collections, much like the situation today in Iowa. Its scope and purpose was focused and limited to
wireless E9-1-1 services, as is the Iowa E9-1-1 Program Office. Today, the wireless board has evolved to a
full scale E9-1-1 Board responsible for the oversight and coordination of future developments of all 9-1-1
service in the state.
Previously, local governments, cities, and counties were able to enact their own specific 9-1-1 surcharges
against wireline only telephone subscribers in their jurisdictions. The surcharge varied locally and did not
have a state enacted cap on the amount. The funding model in North Carolina was an example of a model
where a fee was collected by the local telephone providers and remitted to the local government, again,
much like what happens in Iowa for wireline E9-1-1. A wireless fee per subscriber was also collected on a
statewide basis and remitted to the state board, again with similarities to the Iowa process.
In 2008, the wireless board determined that a new distribution model should require a single fee for all
devices and should have a central collection and distribution point. It was determined that collection
statewide would generate adequate revenue to each primary PSAP to match its previous year total
collections of wireline and wireless fees. This single fee for any device with a centralized collection process
and method was followed during the early years of deploying wireless Phase I and Phase II E9-1-1 services
in North Carolina.
While this new method provided the single fee equality requested by the stakeholders, large E9-1-1 fund
balances were still being maintained by many PSAPs while others appeared to be struggling financially.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
In 2009-2010 the North Carolina E9-1-1 Board commissioned the East Carolina University (ECU) College
of Business to research the operations of each primary PSAP in the state and provide a suggested funding
model that would lead North Carolina to the next generation of a surcharge model and financial stability.
ECU began its work by a data collection process and research of potential funding methods such as “per
seat” funding based on population, as well as formulas using a combination of population, calls for service,
seasonal adjustments, etc. None of the methods seemed to pass the experimental test of funding actual
costs. It was after significant analysis that the ECU realized that the primary PSAPs had already
demonstrated their funding needs simply by incurring their historical costs. PSAPs were already
determining their seasonal adjustments, fluctuations due to calls for service, costs for operational and
technological upgrades and implementation of new equipment and other cost requirements simply based
upon what they were spending each year. Since North Carolina has restrictions on the use of E9-1-1 fees,
ECU determined what was missing was the historical data that captured actual cost of eligible expenses in
each primary PSAP. This information included capital as well as operational expenses and should, at a
minimum, document at least three to five fiscal. The ECU collected applicable data to determine the actual
costs incurred by each primary PSAP, and it was at that time that the North Carolina E9-1-1 Board was
able to provide detailed cost information over six pre-determined categories of expenditures: telephone
systems, furniture, software, hardware, training, and maintenance (e.g. database and GIS functions). The
challenge in this approach for Iowa is access to the information, resident only with the PSAPs and/or
County Joint E9-1-1 Services Boards, regarding costs, and the ability of the PSAP/9-1-1 Board itself to
produce accurate financial information.
Initial information for North Carolina showed the annual distribution of E9-1-1 revenues to the primary
PSAPs was just over $63.2 million while the actual cost of providing 9-1-1 service was only $46.1 million,
with then-current E9-1-1 fund balances totaling $89.2 million being held by the primary PSAPs at the time
of the study.
Following extensive research and analysis, the North Carolina E9-1-1 Board adopted the new funding
recommendations which were to fund primary PSAPs based on their average five-year expenditure.
Recommendations from ECU, and those ultimately adopted by the E9-1-1 Board, recognized that any new
funding model must address individual PSAP characteristics such as population, seasonal adjustments for
tourist populations, PSAP operational capabilities (law enforcement, fire, and Emergency Medical Dispatch
(EMD) and PSAP technologies. Many of the adopted recommendations were written into North Carolina
Session Law 2010-158 which included the mandate for the E9-1-1 Board to develop a new PSAP funding
model.
In summary, it is the North Carolina E9-1-1 Board’s goal to bring revenues in line with actual costs and
reduce E9-1-1 fund balances. This goal should lessen the likelihood of fund-raiding for non E9-1-1 uses.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
The North Carolina E9-1-1 Board believes that the steps they have taken to transition their funding
methodology provides for a more effective, sustainable and defensible method of moving forward.
Additional information, including a report on findings and recommendations for E9-1-1 costs and funding
models, is available on North Carolina’s 9-1-1 website.1
Indiana Statewide E9-1-1 Plan
The Indiana Statewide E9-1-1 Plan identifies the key goals and objectives for improving wireless E9-1-1
service and functionality across Indiana and influences Indiana’s statewide decisions concerning wireless
E9-1-1 and landline E9-1-1 services. The successful achievement of the plan’s goals and objectives will result
in Indiana’s ability to continue to meet the public’s high level of expectations for E9-1-1 service, provide a
consistent level of E9-1-1 service statewide, and contribute to the security of funding for all stakeholders.
The Indiana Wireless E9-1-1 Advisory Board (IWAB) assembled a development team with the IWAB’s
executive director, a representative of the Indiana chapter of the National Emergency Number Association
(NENA), two County E9-1-1 coordinators, two representatives of the Indiana Utility Regulatory
Commission (IURC), and INdigital telecom, the Indiana 9-1-1 (IN911) network provider. A consultant
facilitated the compilation and development of the plan.
The primary vision is to assure that Indiana’s citizens and visitors have E9-1-1 service no matter where they
are calling from, what type of wireless device, protocol, or service they use, and whether they
communicate by voice, text, or other media. The plan has the following goals:
Goal 1 - Provide a functionally comparable level of E9-1-1 service statewide.
Establish a stakeholder working group to make recommendations to the Indiana Wireless E9-1-1 Advisory
Board (IWAB) on a variety of technical, operational, and policy matters to advance wireless E9-1-1 in
Indiana identify data elements to measure the technological progress of wireless E9-1-1 and the date
collection mechanism.
Define the baseline level of wireless E9-1-1 service for Indiana.
Identify minimum technical and operational standards.
Draft legislation for governance, funding, and connectivity.
1https://www.nc911.nc.gov. Additional NC 9-1-1 research, reports and models conducted by ECU is available at:
https://www.nc911.nc.gov/911Board/Pastagendabooks.asp?year=2010
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
Goal 2 - Provide all cellular and wireless technology users with equal access to IN911 and
ESInets that are interconnected with it.
Identify the network architectural and application requirements for Short Message Service (SMS) protocol
interfaces. Telecommunications Device for the Deaf (TDD/TTY) messaging, text messaging, instant
messaging, wireless transmission of still images and video images, telematics, language line services, and
video relay for people who are deaf, hard of hearing and have a speech disability. Work with PSAPs and
local government to develop funding sources.
Goal 3 - Achieve the seamless transfer of wireless E9-1-1 voice and data across state lines.
Negotiate formal Memorandum of Agreement (MOA) with county governments from Michigan, Illinois,
Kentucky, and Ohio to build out E9-1-1 to the borders on Indiana and adjacent states, or to the borders of
adjacent regional or state ESInets.2
Numerous challenges facing Indiana Statewide E9-1-1 Plan initiatives are similar to Iowa and successfully
meeting these challenges requires a level of planning and partnership within Indiana that has not been
necessary in the past.
The Indiana legislature enacted legislation in 2003 to remove the wireless carrier cost recovery provision of
the statute and reduce the surcharge from 65 cents to 50 cents per wireless access line. Additional
changes included the creation of an annual equal distribution of approximately $17,000 to each eligible
county in addition to the existing population based distribution and the creation of a technology sub-
account that permitted the IWAB to enter into specific vendor arrangements, and to plan for future
technology applications.
Within 24 months, 12 independent Local Exchange Carriers (LECs) built a statewide, IP-based network
with the potential to provide the Next Generation 9-1-1 network backbone for the State of Indiana.
The next major milestone in legislative policy was enacted in 2008. The primary effect of HB-1204 was to
limit counties to no more than two PSAPs after December 31, 2014, and to prohibit counties from
increasing their landline E9-1-1 fees until consolidation has been accomplished. This same legislation froze
all county E9-1-1 fees until they comply.
2 https://www.in.gov/tos/e911
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
Action Needed to Achieve Goals in Indiana
Indiana’s current statutory framework is similar to Iowa as wireless E9-1-1 is a statewide and state level
function; landline E9-1-1 is local. Currently, there is no state-level mechanism for assisting local
governments with their implementation projects. In order to achieve the plan’s goals and objectives
Indiana’s landline and wireless statutes need updating to reflect industry and technological issues affecting
E9-1-1 and to meet the growing needs of the PSAPs and public safety.
Other objectives of the plan include:
The Indiana Statewide E9-1-1 Plan is a living document. Its intent is to provide a structure for the
advancement of E9-1-1, assist in the migration of Indiana’s PSAPs to the next generation, and allow the state
to qualify for Federal PSAP grant funding. Each objective has a deadline for completion and an associated
metric to measure progress. Their current network vendor use processes in place to monitor and track
network performance. IWAB’s staff is responsible for executing the plan and tracking the progress.
Future centralized services and applications that are common to all PSAPs, specifically where reducing local government costs to provide E9-1-1 service can be achieved within the statutory policy established by the legislature.
Increase staffing for IWAB and establishment of a state entity with appropriate authority, funding and staffing to facilitate/coordinate statewide E9-1-1 planning, and provide services and technology that is vendor neutral. The IWAB has one employee an executive director.
Expansion of the proficiency, in conjunction with the vendor community and stakeholders, to assure that Indiana’s citizens and visitors have E9-1-1 service no matter where they call from; what wireless device, protocol or service they use; whether they communicate by voice, text, image, or video.
In the future, Indiana’s goal is a uniform statewide E9-1-1 infrastructure or interconnected ESInets with equipment and technology to enable a seamless transfer of voice and data on all E9-1-1 calls within Indiana, adjoining states, and regions. The state also desires to include an E9-1-1 program with adequate authority, staff, and funding to support the advancement of E9-1-1 and public safety services statewide.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
Additional information, including the plan, goals, objectives and measures is available on Indiana’s E9-1-1
website.3
Michigan Next Generation Feasibility Study
The Michigan Emergency Telephone Service Enabling Act (Act) governs the state of Michigan’s 9-1-1
service, provides for the technical and managerial aspects of the state’s 9-1-1 system, and creates funding
mechanisms for the 9-1-1 network backbone and the 181 PSAPs’ capital and operating costs. As in Iowa,
state-level oversight is provided by the Michigan 9-1-1 Committee with the assistance of the State 9-1-1
Administrator’s Office (Office). The Michigan State Police (MSP) is responsible, by statute, for providing
staff assistance to the Committee as necessary to carry out the Committee’s duties, and fulfills this
responsibility through the State 9-1-1 Administrator’s Office. In Iowa, this responsibility falls also to a state
agency, but in the case of Iowa, it is the Homeland Security and Emergency Management Division (HSEMD).
The Michigan 9-1-1 Committee has authority to recommend technical and operational standards for PSAPs,
to recommend model 9-1-1 systems and to provide assistance for the design, implementation, and
operation of those systems. However, the Committee does not have rulemaking authority. That authority
rests with the Michigan Public Service Commission (MPSC), in consultation with the Committee.
The responsibility of the Iowa E9-1-1 Communications Council, as described in the Existing Conditions
report, is to advise and make recommendations to the HSEMD Administrator and the E9-1-1 Program
Manager related to the development and implementation of the state E9-1-1 system. So in many respects
the Michigan and Iowa advisory committees with their broad representation are similar in structure.
In Michigan, the 9-1-1 Committee determined that it should study the feasibility of upgrading Michigan’s
current E9-1-1 system to modern, digital IP-based technology, and so it commissioned a Feasibility Study of
Next Generation 9-1-1 (NG9-1-1) Services. It is generally understood that NG9-1-1 functions enable
shared networks, maximize cost savings and increase partnerships among the stakeholders in a coordinated
and interconnected environment. Many states are finding that this level of coordination and
interconnection has not been necessary in the past under former traditional E9-1-1 architecture, and with
this new level of coordination comes new public policy challenges.
In Michigan, the Feasibility Study of NG9-1-1 Services found, as has been revealed in Iowa, that diversity and
redundancy are absent in the current 9-1-1 system architecture. In Michigan and in Iowa, there is no
interoperability between the selective routers.
3 www.in.gov/tos/e911/indiana
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
The State of Michigan Department of Information Technology (MDIT) has a contract in place with a major
communications provider to provide IP services to all state agencies. A similar service is in place in Iowa as
well. Interconnection agreements with the local exchange carriers are used to supplement services
anywhere in the state that may be outside of the contract provider’s service area. The MDIT contract,
negotiated with the major communications provider, was developed to provide services to state agencies
for general administrative function and was not intended to deliver the strict service levels required for
E9-1-1 services. Because of this, the Michigan 9-1-1 Committee determined that bandwidth requirements
for 9-1-1 along with necessary service levels to support the needs of 9-1-1 would need to be evaluated to
ensure the network would fully support the current and future requirements for 9-1-1, and further,
amendments to the state contract with the communications provider would likely be required. Iowa will
face a similar situation if the State of Iowa IP network is utilized for NG9-1-1 services.
General Policy Findings
Michigan and Iowa as well as other states are facing similar policy issues. As in Iowa, the Michigan 9-1-1
Committee’s statutory authority is only advisory. According to the Michigan Feasibility Study of NG9-1-1
Services, the Committee may develop and recommend statewide standards for emergency telephone
service, make recommendations for counties’ 9-1-1 plans, provide technical assistance for the
implementation of county 9-1-1 systems, and oversee the distribution and use of 9-1-1 funds. The Michigan
9-1-1 Committee does not have rulemaking authority, but it may make recommendations to the Michigan
Public Service Commission (MPSC), which does have the authority to establish rules.
9-1-1 Funding
Funding in Michigan is similar to Iowa in that there is a broad collection mechanism at the state level and
local remittance for a different part of the funding stream directly to the local agencies. Michigan’s state
wireless E9-1-1 surcharge is collected by the communication service providers and remitted to the
Michigan Department of Treasury (Treasury); a separate fee on pre-paid wireless services is also remitted.
The Treasury is responsible for the financial administration of the state’s 9-1-1 program.
There is also a county wireline E9-1-1 surcharge which is assessed, collected, and remitted directly to the
county and administered by the county according to statute. Sixty-six counties collect a local surcharge.
The remaining counties fund 9-1-1 operations through general funds.
Similarities between Michigan and Iowa with regard to the 9-1-1 funding mechanisms are evident in that
there are to two levels of surcharge rates for wireless and wireline state government establishes the
wireless rate and local governments establish the rate for wireline services on a jurisdiction by jurisdiction
basis; and additional costs to operate the systems are generally borne by general fund revenue.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
In Michigan, county 9-1-1 revenues may be used for the following purposes which are more broad than
those permitted by Iowa statute:
Personnel costs directly attributable to the delivery of 9-1-1 service
Facility costs of the dispatch center directly attributable to the delivery of 9-1-1 service
Training and memberships directly related to 9-1-1 service
Hardware, software, training and peripherals directly attributable to the delivery of 9-1-1 service
Vehicle costs directly attributable to the delivery of 9-1-1 service
Professional services
Public education/information expenses
In Michigan, there is a third 9-1-1 funding mechanism which is known as a “technical charge” and is
reported to be unique to Michigan. It is unknown if any other state has a similar charge. The technical
charge is based on two fundamental ideas. First, it provides a mechanism for the service providers to
recover their costs for providing the service. Second, within any given 9-1-1 jurisdiction, the rate must be
uniform for all end users which equalizes service costs. As a result of these two concepts, along with the
requirement for geographic billing by service district, a pooling arrangement was instituted to minimize the
required settlement process between the service providers and end users. A separate pool is maintained
for each of the 79 service jurisdictions in the State of Michigan.
State Coordination
The Michigan 9-1-1 Office, in conjunction with the Michigan 9-1-1 Committee, provides the framework for
the statewide coordination that is essential to establishing and managing the data networks used for Next
Generation 9-1-1 known as ESInets. This is situation is similar in Iowa.
It should be noted that this state involvement approach is necessary and important and supported by
NENA NGPP policy brief entitled, “Establishing Statewide Emergency Services IP Networks (ESInets)”:
ESInets should be deployed at a sub-state level (regional/county)
ESInets should be interconnected with other sub-state ESInets to establish a standardized,
interconnected and interoperable statewide ESInet
A state level entity or organization is recommended to implement and manage the interconnected
statewide ESInet
A state level entity or organization can play a significant role by providing an IP backbone network
to make interconnection of regional/local ESInets more efficient. Iowa is already well underway on
this approach.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
Next Generation technologies offer the potential for new 9-1-1 service suppliers and other competitive
options. This will involve new technologies and business arrangements that current laws, regulations, and
tariffs did not foresee. As previously stated, Michigan’s 9-1-1 legacy statutes, regulations and tariffs, as are
Iowa’s, are designed around the traditional regulated telephone service approach to 9-1-1. Michigan has
found that 9-1-1 service suppliers’ tariffs include definitions that describe E9-1-1 system components and
functions in terms of legacy technology. The tariffs do not provide for IP technologies. Iowa statutes and
regulations are in the same position and will require an overhaul similar to that anticipated in Michigan.
Governance structure
Traditional E9-1-1 at the local level occurs in coordination with local service providers. Wireless 9-1-1
required that 9-1-1 authorities take a broader view of service as the wireless radio signals do not follow
traditional landline service boundaries. Many of the NG9-1-1 functions and applications can take place
anywhere and be shared by larger groups than ever before. Michigan found that this will require more
coordination between the entities involved to operate the systems and govern their use.
Michigan was cautioned in the Feasibility Study of NG9-1-1 Services report that an issue to keep in mind
might be that local governments would be likely to believe that they will lose control over PSAP operations
if the state were to increase its involvement and oversight. It is entirely likely that Iowa jurisdictions may
be concerned about this as well. In fact, GeoComm heard this similar concern from local agencies in the
GeoComm-sponsored Discussion Forum hosted in conjunction with the Iowa NENA Conference in
November 2011. This concern makes participatory governance and the inclusion of stakeholders in
governance policy even more important.
Staffing
The Michigan study suggested that staffing at the state level may increase depending on the solution chosen
for Next Generation service. At a minimum, the study noted, there will be new skills required at the state
level and that it may be necessary to hire additional staff. State personnel should have the skills to
effectively manage the service providers.
Policy Considerations
Local 9-1-1 authorities and PSAPs may mistakenly believe that the state will take over their 9-1-1 service.
That concern may get in the way of effective dialogue. Michigan was cautioned that it will be necessary to
help critically important stakeholders more clearly understand that NG9-1-1 involves practical partnerships
in ways that the current system of E9-1-1 did not. Local functions such as staffing, answering calls, and
dispatching may well remain under local control. However, functions associated with system
interconnection, IP network management, data services, data security and data rights, etc., simply must be
managed at a higher level. Increased state involvement, oversight, or management does not need to detract
in any way, the study argued, from how PSAPs do what they do best: answer and respond to 9-1-1 calls.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-10
Public Safety Consulting, GIS, and Software www.geo-comm.com
The report further identified that while the Michigan 9-1-1 Committee with its state-level oversight may
have a more centralized role than its counterparts in other states, the Michigan 9-1-1 Office’s lack of
rulemaking authority is a concern that should be remedied.
The Feasibility Study4 reiterated that:
Summary
Iowa’s proposal to update legislation in 2010 should be revived and pursued again in the next legislative
session. As the review of the similar state studies reveals, Iowa is facing several significant issues that have
also been experienced in other states.
The National Emergency Number Association’s (NENA’s) Next Generation Partner Program (NGPP) has
identified the following policy issues related to NG9-1-1:
Need for state-level 9-1-1 leadership and coordination
Funding
Establishing statewide emergency services
Regulation/legislation and tariffs
Systems security
In Iowa, a comprehensive overhaul of legislation will be necessary to modify funding for sustainability, to
update legislative language to allow for implementation of Next Generation, and to realign the duties and
responsibilities of the state E9-1-1 Program. These activities will be necessary to move Iowa E9-1-1
communications forward and should not be delayed.
4 Feasibility Study of NG9-1-1 Services prepared for the State of Michigan 9-1-1 Committee, April 2010
“It should be clear that NG9-1-1 is not a „local exchange service‟ in the manner that E9-1-1 has been. As
the nature of 9-1-1 service evolves away from the regulated telephone industry the regulatory environment
must evolve to reflect the new reality. The 9-1-1 technologies included in the existing framework are those
associated with the legacy, analog telephone environment (e.g., selective routers, ALI database, PSAP
functionality, network infrastructure). Michigan‟s current laws, regulations (what few exist) and tariffs need
to be overhauled in order to pave the way for the competitively and technologically neutral environment that
is necessary to establish an ESInet backbone for NG9-1-1.”
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions and Analysis Report 6-11
Public Safety Consulting, GIS, and Software www.geo-comm.com
GeoComm has already reported in other parts of this document and in the Existing Conditions report that
the ISICS Board and the E9-1-1 Council should be aware of the fact that there is a high level of local
distrust of state authority, and any action on the part of the state might be met with concern or resistance
on the part of local governments, PSAPs or Joint E9-1-1 Service Boards. Often the most effective way to
avoid or mitigate a potential roadblock is to provide a mechanism for stakeholder participation in decisions
that affect them, and to communicate frequently and openly with all concerned. The ISICS Board and the
E9-1-1 Communications Council have the opportunity to effectively fulfill this role, and may want to
increase contact with their constituents during the planning and implementation process for Next
Generation E9-1-1 service. GeoComm is confident that increased involvement and communication with
stakeholders will be beneficial in increasing understanding and awareness that NG9-1-1 will not be possible
without strong state-level involvement.
Public Safety Consulting, GIS, and Software www.geo-comm.com
7 Data Report Card
Overview
In today’s world of public safety dispatch, Geographic Information Systems (GIS) are being used for plotting
caller locations on computerized maps at the individual Public Safety Answering Points (PSAPs). As public
safety transitions into Next Generation 9-1-1 (NG9-1-1), the importance of having an accurate GIS
increases dramatically. GIS also plays an essential role in the validation of location information and routing
of 9-1-1 emergencies to the correct PSAP under a NG9-1-1 model. Therefore, the importance of highly
accurate GIS data for local and surrounding areas is critical.
As the State of Iowa moves toward the NG9-1-1 system, it is important to have an understanding of
available GIS data for use within the system and the condition of the data. The GIS portion of the Iowa
Statewide Interoperable Communications System Board (ISICSB) study focused on determining the status
of GIS data being used in public safety and the condition or accuracy of said data.
To determine the status of public safety GIS data across the state GeoComm released a survey with
questions focusing on types of GIS data used and maintenance of that data within the PSAP. The survey
focused on street centerline and address points that are used for determining an address location and if
their current maintenance program meets their needs for public safety.
Determining the condition or accuracy of the GIS data for purposes of the study required an in-depth
analysis of three urban and three rural areas. The detailed analysis followed National Emergency Number
Association (NENA) standards outlined in Synchronizing GIS with MSAG & ALI found on the NENA website
as document 71-501, approved September 8, 2009. The process involved looking at the spatial and
attribute information in the street centerline, then performing synchronization testing of the ALI database
between the Master Street Address Guide (MSAG), street centerline, and address points, if available.
Service and/or political boundaries were also used in the analysis process.
Status of Public Safety GIS Data
A detailed spreadsheet outlining the status of GIS data for Iowa was provided in the GIS section of the GIS
Status Report of the Existing Conditions Report. The results were determined by a combination of survey
responses, results of a previous study completed by the Iowa Department of Transportation, and
GeoComm’s current Iowa customer base.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-2
Public Safety Consulting, GIS, and Software www.geo-comm.com
The survey focused on location data such as street centerline and address points as they are the most
costly and time intensive to develop. NENA recommends the use of an address point layer depicting
address locations, not parcel centroids, for use in NG9-1-1. Detailed information such as zip code or suite
numbers can be associated with an address point versus the street centerline.
Survey Results
Centerline
96 – Locations use centerline
58 – Yes response from surveys
38 – Yes from other resources
15 – Currently do not have centerline
3 – No response from surveys
12 – No from other resources
Address Points
67 – Locations use address points
42 – Yes response from surveys
25 – Yes from other resources
44 – Locations do not have address points
15 – No response from surveys
29 – No from other resources
Review
The minimal layer needed in call plotting today and NG9-1-1 functions of validation and routing is a street
centerline. There are 15 or 13.5 percent of jurisdictions in Iowa that do not have this most common GIS
functionality for public safety. As Iowa moves toward NG9-1-1 it is important to note that over 60 percent
of the jurisdictions have access to an address point layer.
It is important to note that mere existence of the data layer does not mean that goals have been achieved.
As an example, Iowa has strong digital parcel mapping programs across the state. If the address point file
has been created from a parcel centroid it may not meet public safety needs. An address point layer for
NG9-1-1 should include a unique point for every address. Multiple addresses may exist on a single parcel.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-3
Public Safety Consulting, GIS, and Software www.geo-comm.com
Maintenance of Existing Data
As stated earlier, it is not enough that data exists. There must also be a maintenance program so that
changes that occur in the area are reflected in the map data. Public safety requires a fast turnaround time
for GIS data updates. Questions were included in the survey to determine if the centerline or address
point maintenance program met the needs of public safety. Whether a maintenance program meets public
safety needs could only be determined from survey responses.
Survey Results
Centerline
48 – Survey responses
41 – Yes the maintenance program fulfills their needs
7 – No the maintenance program does not fulfill their needs
Address Points
34 – Survey responses
29 – Yes the maintenance program fulfills their needs
5 – No the maintenance program does not fulfill their needs
Review
The five “No” responders from the address points also responded “No” to the centerline maintenance.
The “No” survey responses could indicate that the local maintenance program is not sufficient, or that a
maintenance program may exist but updated data is not reaching the mapping application in public safety.
Data Report Card Summary
The purpose of the Data Report Card is to outline analysis results of GIS data used for emergency call
location in the PSAPs. In addition, the report will provide information on data requirements for the
NG9-1-1 data model. The ISICSB study called for the six areas to receive an in-depth analysis of their
public safety GIS data. The following three urban and three rural areas were selected for the study.
Category County Agency
Urban Polk Des Moines
Urban Story Ames Police Department
Urban Woodbury Sioux City
Rural Pocahontas County
Rural Washington County
Rural Black Hawk County
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-4
Public Safety Consulting, GIS, and Software www.geo-comm.com
The Data Report Card will provide ISICSB and the participating communities with a summary status of GIS
and associated database synchronization based on the industry’s NENA standards. The analysis process
used in the study follows NENA standards outlined in Synchronizing GIS with MSAG & ALI found on the
NENA website as document 71-501, approved September 8, 2009. The criteria and configuration
tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data Report Card
spreadsheet.
The in-depth analysis calls for a review of three main databases.
1. GIS data layers
2. Automatic Location Identification database (ALI)
3. Master Street Address Guide (MSAG)
The first step in the study was to review the GIS data layer(s) provided by the jurisdictions. The centerline
review tests for NENA specific standards for the spatial and attribute features. The criteria are listed in the
Centerline Review section of the report. The boundary layers were also tested based on availability. Gaps
and overlaps between boundary polygons should not exist.
The second step is testing of synchronization of the three databases. Each synchronization scenario is
outlined in the following sections of this report. According to study criteria, GeoComm was to test a
sample of 50,000 ALI records for all study areas combined. The total number of ALI records actually
reviewed for the study was 60,263.
Centerline Review
GeoComm did an independent analysis on the street centerline prior to testing the ALI database against
the layer. The analysis process related to the NENA specifications for a street centerline data layer being
used for public safety. If a centerline contains any attribute or spatial issues, it will negatively affect the
geocoding results. The following criteria were used for centerline analysis:
Address ranges should not contain overlaps or duplicates
Street segments should be broken at intersections or snapped to adjacent segment(s)
Street segments should be coincident with the service or political boundaries. This means if a
street falls along a boundary of a service zone such as fire service boundary or political boundary
the street segment and boundary(s) should line up.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-5
Public Safety Consulting, GIS, and Software www.geo-comm.com
Results – Goal is 0%
5.39% - Segments in street centerline with address range overlaps
7.70% - Segments not broken at intersections or snapped to adjacent segments
6.00% - Segments that were not coincident with service or political boundaries
Review
Centerline Issues Sioux City Des Moines Ames Pocahontas Black Hawk Washington
Address range overlaps or
duplicates 27 103 819 0 486 126
Segments not broken at intersections or snapped to
adjacent segment(s)
550 275 204 118 1,085 10
Street segments not
coincident with boundary 25 427 66 223 840 166
ALI to MSAG Comparison
The analysis process compares the sample ALI database for each designated location. The ALI data
contains all the wireline telephone records for the location that are MSAG valid. The MSAG controls what
is included within the ALI database. The optimum result is the ALI to MSAG comparison is zero as all ALI
database records should fall within the MSAG parameters.
Results – Goal is zero
20 ALI records did not match the MSAG
Review
The breakdown of ALI to MSAG issues was nine in Sioux City, eleven in Black Hawk County and two in
Washington County that did not fit the MSAG. The majority of issues were related to street names from
the ALI database that were not found in the MSAG.
ALI to Centerline
Testing the ALI database against the local street centerline is performed to determine what addresses
within the 9-1-1 dataset will plot on the street centerline data and boundary refinement, if available. The
use of boundary refinement is specified in the individual Data Report Card results within this report. The
ALI to centerline analysis plays a critical role moving into NG9-1-1.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-6
Public Safety Consulting, GIS, and Software www.geo-comm.com
The desired percentage of ALI to centerline analysis is 100 percent but expectations should be in the 98-99
percent range.
Results – Goal is 100%
85.66% - Addresses in 9-1-1 ALI database were located on the street centerline
Review
To begin reviewing the results, GeoComm has provided a breakdown of the over 14 percent fallout. The
fallout category assists in determining what adjustments within the centerline or boundary files are needed
to achieve the desired results. As an example, if an address did not locate because it was found multiple
times on the same feature, the ranges need to be reviewed to see why this error occurred.
ALI to GIS Centerline
Fallout Category
Issues Category Description
No house number 2 ALI record did not include a house number.
Address could not be found in
compatible ranges 24
Street name was found but house number was not found the
address ranges in the map data.
Address falls in a gap in the compatible
ranges 382
Street name was found but house number fell within a gap in
the segment ranges.
Address found multiple times 727
There was more than one location for the house number
and street name according to the map data. Issues may be
overlapping address ranges or the refinement boundaries.
Address found multiple times on same
road feature 3,765
The ranges on the specific street segment do not follow standards. Ranges may reflect even and odd values on the
same side of the road.
Address found only in a different ESN 426
Using a service boundary or centerline attributes for geocode refinement. The address was located but the
refinement data was incorrect. Issues may relate to streets
not being broken or coincident with refinement boundaries.
Address found only in a different
community 326
Using a community boundary or centerline attributes for geocode refinement. Issues may relate to streets not being
broken or coincident with community boundaries.
Address is higher than compatible ranges 444 House number in the ALI record was higher than the
address ranges for that street name.
Address is lower than compatible ranges 288 House number in the ALI record was lower than the address
ranges for that street name.
No matching street name found 2,256
Street name in the ALI record was not found in the street segments. Issues may relate to spelling errors, wrong street
designator, or directional.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-7
Public Safety Consulting, GIS, and Software www.geo-comm.com
The table below provides a breakdown of ALI to centerline geocoding fallout broken down by category and
jurisdiction.
Fallout Category Sioux City Des Moines Ames Pocahontas Black Hawk Washington
No house number 0 0 0 0 2 0
Address could not be found
in compatible ranges 8 4 6 0 1 5
Address falls in a gap in the
compatible ranges 155 17 51 13 72 74
Address found multiple times 39 0 151 0 403 134
Address found multiple times
on same road feature 14 0 34 0 3,677 40
Address found only in a
different ESN 0 0 0 2 0 424
Address found only in a
different community 0 0 0 0 326 0
Address is higher than
compatible ranges 139 9 81 11 145 59
Address is lower than
compatible ranges 51 1 36 20 92 88
No matching street name
found 408 145 5 180 1,071 447
Total 814 176 364 226 5,789 1,271
ALI to Address Points
Testing the ALI database against the address point data is performed to determine what addresses within
the 9-1-1 dataset will plot on the point data. NENA recommends the move toward address points at
structure locations with a street centerline as a backup. The ALI to address point analysis plays a critical
role moving into NG9-1-1. The desired percentage of ALI to address point matches is 100 percent but
expectations will vary based on the specifications of the address point data. The goal should be a point for
each unique address within a jurisdiction. The centerline data represent the street network but variables
exist in the development of an address point data set. As example, if the address points reflected the
center of the parcel polygon, multiple addresses within a single polygon would not find a match.
Results – Goal is 100%
97.28% - Addresses in 9-1-1 ALI database were located on the address points
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-8
Public Safety Consulting, GIS, and Software www.geo-comm.com
Review
To begin reviewing the results, GeoComm has provided a breakdown of the fallout. The fallout category
assists in determining what needs to be adjustments within the address point or ALI database to achieve the
desired results. As example if an address did not locate because there were multiple points with the same
address, it may be the results of the use of sub addresses. An example of a sub address is unit or suite.
The sub address may be standardized in the point data but not in the ALI. This is a common issue as the
location field in the ALI database is not standardized.
ALI to GIS Address Points
Fallout Category
Issues Category Description
Address found multiple times 1,486 Multiple points for the same unique address. If sub address
used in points but not in ALI then an error would occur
Address not found 2,181
No corresponding point for the ALI address. Could be street name or house number issues within the point data.
Could be that the address in the ALI does not exist. The ALI
record should be reviewed.
Three jurisdictions provided address points for analysis. The table below shows the breakdown by
category of the ALI to address point fallout.
Fallout Category Sioux City Des Moines Ames
Address found multiple times 705 1 780
Address not found 1,780 180 221
Total 2,485 181 1,001
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-9
Public Safety Consulting, GIS, and Software www.geo-comm.com
Analysis Results by Jurisdictions
The following sections provide individual analysis processes and results. The study obtained local data for
the analysis process so the approach and process may vary based on available data. The analysis for this
report is a straight review of synchronization between the MSAG and the GIS data. It does not take into
account alias tables or address locators that may be used in PSAP mapping applications. To receive a true
picture of data synchronization levels that may affect NG9-1-1 it is important to perform a straight analysis.
The following analysis provides the results based on minimal map data configurations.
It is important to note that analysis processes varied by jurisdiction based on available data and attributes.
The individual documentation section provides technical background for GIS personnel to interpret the
fallout results. A digital copy of the fallout will be provided as part of this report. The digital results will
assist in any cleanup projects that may occur as a result of this study.
Pocahontas County
Source
Sid Enockson provided the MSAG and ALI databases for analysis.
Jeff Lewis from Schneider Corp provided the GIS data. Schneider is under contract to maintain the
GIS data for Pocahontas County.
Data Preparation
The GIS data provided by Schneider included road centerline, corporate limits, E911_fire_district,
E911_ambulance_district, county districts, and a full county boundary. No address points are available for
Pocahontas County.
The street centerline contains multiple street name and address range fields. For analysis purposes range
values found in P_FL, P_TL, P_FR, P_TR fields were used. After review of the fire, ambulance, and county
districts, neither boundary file coincided with ESN values found in the MSAG, so the L_ESN and R_ESN
were used for analysis refinement when geocoding the ALI database against the street centerline.
The original ALI database for Pocahontas County contained 4,822 records. The database contained
records that had a community name of “Outside E9-1-1 County.” These records contained a neighboring
county name in the street name field. These records were removed from the database. All records related
to wireless and Voice over Internet Protocol (VoIP) were also removed from the database prior to
completing the analysis. The database containing only valid county address information had 3,880 records.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-10
Public Safety Consulting, GIS, and Software www.geo-comm.com
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with fire boundary
ALI Database
Comparison to MSAG for synchronization
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
MSAG Database
Review street and community name consistency
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible inconsistencies No Issues N/A
Range check for overlapping ranges 0 100%
Review of spatial issues where streets not broken or snapped at intersections (Overpasses/underpasses not taken into
consideration)
118 94.64%
Determine street segments not coincident with fire boundary 223 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 0 100%
Comparison to centerline 226 94.18%
MSAG Database Results Synchronization
Percentage
Review street and community name consistency Issues N/A
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-11
Public Safety Consulting, GIS, and Software www.geo-comm.com
City of Sioux City
Source
GIS data was provided by Woodbury County Information and Communications Commission. They
provided emergency service zones, address points, and street centerline.
Woodbury County Communications provided the MSAG and ALI databases
Data Preparation
The GIS data provided for analysis included Woodbury County. GeoComm obtained only Sioux City GIS
data by querying out COMM_L and COMM_R fields from Woodbury street centerline.
To obtain the address points that fall within Sioux City, GeoComm selected the ESN boundary for the city
and selected all address points that fall within the boundary. GeoComm created a combined address field
using the house number and street name, excluding the unit number. The combined address field was used
for analysis processes.
The ISICSB study called for an overall study of 50,000 ALI records across the six study areas. An ALI
database contains a record for telephone lines. A single address may have multiple records within the
database. To provide a clear view of an ALI database comparison and still stay within the confines of the
total records, GeoComm created a sub file from the full ALI database that contains unique addresses.
Sioux City ALI had 17,907 unique addresses used in the synchronization analysis.
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with ESN boundary
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-12
Public Safety Consulting, GIS, and Software www.geo-comm.com
ALI Database
Comparison to MSAG for synchronization
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
Comparison to the address point GIS data to determine if the address points accommodate the
addresses in the ALI database
► It should be noted that the process where the error is “Address Found Multiple Times”
takes the data to the house number level, not the unit number. The ALI may or may not
contain that information and may not be consistent.
MSAG Database
Compared address point GIS data to the MSAG to determine if the MSAG accommodates the
addresses in the GIS database.
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible
inconsistencies
Council Oak Dr
Council Oaks Dr
Mside College Dr
N/A
Range check for overlapping ranges 27 99.52%
Review of spatial issues where streets not broken or snapped at intersections
(Overpasses/underpasses not taken into
consideration)
550 90.28%
Determine street segments not coincident with
ESN boundary 25 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 9 99.95%
Comparison to address points 2,485 86.12%
Comparison to centerline 814 95.45%
MSAG Database Results Synchronization
Percentage
Review street name and community name
consistency No Issues N/A
Compared GIS address point to MSAG 1,818 94.65%
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-13
Public Safety Consulting, GIS, and Software www.geo-comm.com
City of Des Moines
Source
Nick Brockman, Public Safety CAD Technician for Polk County Sheriff’s Office, provided the MSAG
data for Des Moines
Dave Lockard from Des Moines provided the ALI database
Aaron Greiner from Des Moines provided the GIS data
Data Preparation
GeoComm was provided the city boundary, streets, and points. Address points were created from
multiple sources. They are a combination of building locations and geocoded addresses. The city also
provided ESZ_fire and ESZ_police layers for analysis. A typical analysis works with a combined fire, law,
and medical boundary layer that coincide with the Emergency Service Zones (ESZ) in the MSAG database.
For analysis purposes, GeoComm used the ESZ_fire for the analysis refinement.
The ISICSB study called for an overall study of 50,000 ALI records across the six study areas. An ALI
database contains records for telephone lines. A single address may have multiple records within the
database. To provide a clear view of an ALI database comparison and still stay within the confines of the
total records, GeoComm pulled a random sample of 10,007 unique addresses from the Des Moines portion
of the Polk County ALI database provided.
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with fire boundary
ALI Database
Comparison to MSAG for synchronization
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-14
Public Safety Consulting, GIS, and Software www.geo-comm.com
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
Comparison to the address point GIS data to determine if the address points accommodate the
addresses in the ALI database
MSAG Database
Compared address point GIS data to the MSAG to determine if the MSAG accommodates the
addresses in the GIS database.
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible
inconsistencies No Issues N/A
Range check for overlapping ranges 103 97.07%
Review of spatial issues where streets not broken
or snapped at intersections
(Overpasses/underpasses not taken into
consideration)
275 92.17%
Determine street segments not coincident with fire
boundary (no combined ESN boundary provided) 427 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 0 100.00%
Comparison to address point 181 98.19%
Comparison to centerline 176 98.24%
MSAG Database Results Synchronization
Percentage
Review street name and community name
consistency No Issues N/A
Compared GIS address point to MSAG 1,057 98.58%
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-15
Public Safety Consulting, GIS, and Software www.geo-comm.com
Black Hawk County
Source
Judy Flores from Black Hawk Public Safety Communications Center provided the MSAG, ALI, and
GIS data for analysis
Data Preparation
GeoComm obtained the boundary layers for jurisdictions, fire and ambulance service. The street
centerline layer was also included in the GIS data. A typical analysis works with a combined fire, law, and
medical boundary layer that coincides with the Emergency Service Zone (ESZ) in the MSAG database.
GeoComm used the fire response zone boundary for analysis.
Street centerline data received belonged to a larger dataset extending outside county boundaries. To
obtain Black Hawk County data the centerline was clipped using a one-mile buffer on the county boundary.
The ISICSB study called for an overall study of 50,000 ALI records across the six study areas. An ALI
database contains records for telephone lines. A single address may have multiple records within the
database. To provide a clear view of an ALI database comparison and still stay within the confines of the
total records, GeoComm pulled a random sample of 10,000 unique addresses from the Black Hawk County
ALI database.
Data Attribute Issues:
After an attribute review of the street centerline, ST_LABEL containing a combined street name
was used for analysis. The field contained a number of leading spaces that needed to be deleted
prior to analysis.
Refinement fields or data layers are needed for analysis. The refinement process accommodates
situations where there could be a duplicate address within a different municipality or emergency
service zone. GeoComm reviewed the data to determine the best approach for designating a
refinement process. The L/R ZONE fields in the centerline were used for the refinement process
based on the following analysis:
Centerline has L/R ESN fields however the attributes did not correspond with ESN info from
MSAG.
After some spot checking it appears the community name in the MSAG possibly represents
postal community as it does not appear to match political boundaries.
No GIS boundary layer that corresponds to the community in the MSAG was provided.
GeoComm looked for possible corresponding boundary information within the centerline. The
majority of the L/R ZONE fields are populated with community names. However, the
attributes are not standardized. As an example, Waterloo is spelled two different ways.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-16
Public Safety Consulting, GIS, and Software www.geo-comm.com
The street data appears to have segments representing parking lots. Segments are not connected
to other segments and appear to be used for visual purposes or possible Computer Aided Dispatch
(CAD) functionality. As an example the attributes on some parking lot segments have a street
name of “22 PARKING” with four range field values of 22,22,22,22. Attributes and spatial segments
negatively impacted the analysis results.
The street name attributes in the centerline data have inconsistent ordinal suffixes on numbered
streets. The MSAG does not contain ordinal suffixes. Ordinal suffix examples are the “st”, “nd”,
and “rd” portions of the name for numbered streets such as 1st, 2nd, or 3rd.
The MSAG has inconsistencies in the community name field. As an example, Elk Run Heights is
spelled three different ways. The lack of standards could negatively impact the analysis results.
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet. The L_ZONE and R_ZONE fields were used for refinement when working with
the ALI database and GIS data.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with fire boundary
ALI Database
Comparison to MSAG for synchronization
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
MSAG Database
Review street and community name for consistency
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-17
Public Safety Consulting, GIS, and Software www.geo-comm.com
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible
inconsistencies Issues N/A
Range check for overlapping ranges 486 95.47%
Review of spatial issues where streets not broken
or snapped at intersections
(Overpasses/underpasses not taken into
consideration)
1,085 89.89%
Determine street segments not coincident with fire
boundary (no combined ESN boundary provided) 840 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 11 99.89%
Comparison to centerline 5,789 42.11%
MSAG Database Results Synchronization
Percentage
Review street and community name consistency Issues N/A
City of Ames
Source
Connie Hambly, E9-1-1 Database Coordinator from Story County provided the MSAG and ALI
The City of Ames provided the GIS data
Data Preparation
GeoComm was provided the street centerline, address points, and community boundary. The street data
extended beyond the city. Centerlines that fell within the city limit of Ames were used for the analysis. A
typical analysis works with a combined fire, law, and medical boundary layer that coincide with the ESZ in
the MSAG database. Ames has one ESN for the city so response zones or ESN data was not required.
The ISICSB study called for an overall study of 50,000 ALI records across the six study areas. An ALI
database contains records for telephone lines. A single address may have multiple records within the
database. To provide a clear view of an ALI database comparison and still stay within the confines of the
total records, GeoComm pulled 8,116 unique addresses from the Ames ALI database.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-18
Public Safety Consulting, GIS, and Software www.geo-comm.com
Attribute information issues:
Street centerline contained parsed out street name fields and a combined street name field. There
were cases where the combined field attributes did not match the parsed out data.
Street name issue
Situations where the street name noted access locations such as “Access to Mobile Home
Park” or “Access to Iowa State Ctr.” The segments also contained address ranges. The street
names do not follow NENA standards and for analysis purposes they contain overlapping
ranges.
A large number of segments containing 1, 1 for the high/low and odd/even address ranges. These
will show up as overlapping segments due to the street name and address range “overlap”
according to the attributes. This situation will have a negative impact on the analysis results.
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with community boundary
ALI Database
Comparison to MSAG for synchronization
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
MSAG Database
Review street and community name for consistency
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-19
Public Safety Consulting, GIS, and Software www.geo-comm.com
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible
inconsistencies – Examples
“Access” Street names
Mesa Verde/Verda
Stone Broke/Brook
N/A
Range check for overlapping ranges
(Roy Key Ave – Right from range 30003100) 811 89.91%
Review of spatial issues where streets not broken or snapped at intersections
(Overpasses/underpasses not taken into
consideration)
204 97.49%
Determine street segments not coincident with city
boundary 66 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 0 100%
Comparison to address points 1,001 87.67%
Comparison to centerline 364 95.52%
MSAG Database Results Synchronization
Percentage
Review street name and community name
consistency No Issues N/A
Washington County
Source
Cara Sorrells, Washington County Sheriff’s Office, provided the MSAG, ALI, and GIS data for
analysis with assistance from Duane Royer at the county.
Washington County has a local ALI database and MSAG.
Data Preparation
GeoComm was provided the emergency service zone boundary, sign points, and street centerline GIS data
for analysis. After reviewing the sign point data base and discussions with Duane Royer from the county,
GeoComm did not include the point data base for analysis. The attribute field included a house number
but no street name which is needed for synchronization testing.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-20
Public Safety Consulting, GIS, and Software www.geo-comm.com
Multiple fields contained street name information. There appear to be two sets of parsed street name
fields along with combined street name fields. The designators in the FULLNAME field in the map data
appear to coincide with MSAG data. The FULLNAME field was used for synchronization analysis.
GeoComm used the ESN L/R attributes in the centerline data for refinement in the analysis. A second
analysis was completed using the ESN polygon for refinement with the similar results. The fallout listed in
the Data Report Card under the ALI to Centerline tab is the fallout from using the ESN L/R attributes in
the centerline.
The ISICSB study called for an overall study of 50,000 ALI records across the six study areas. An ALI
database contains records for telephone lines. A single address may have multiple records within the
database. To provide a clear view of an ALI database comparison and still stay within the confines of the
total records, GeoComm pulled a random sample of 10,353 unique addresses from the Washington
County local ALI database.
Analysis Steps
The analysis processes used in the study follow NENA standards outlined in Synchronizing GIS with MSAG &
ALI found on the NENA website as document 71-501, approved September 8, 2009. The criteria and
configuration tolerances for various analysis processes are noted in different tabs in the jurisdiction’s Data
Report Card spreadsheet. The ESN L/R fields were used for refinement when working with the ALI
database and GIS centerline data.
GeoComm performed the following analysis on GIS and 9-1-1 Databases provided:
Centerline Review
Review of street name components for inconsistencies
Range check for overlapping ranges
Review of spatial issues where streets not broken or snapped at intersections
Determine street segments not coincident with ESN boundary
ALI Database
Comparison to MSAG for synchronization
Comparison to centerline to determine if the street centerline accommodates all the addresses
in the ALI database
MSAG Database
Review street name and community name consistency
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-21
Public Safety Consulting, GIS, and Software www.geo-comm.com
Results
Centerline Results Synchronization
Percentage
Review of street name components for possible
inconsistencies No issues N/A
Range check for overlapping ranges 126 98.78%
Review of spatial issues where streets not broken
or snapped at intersections
(Overpasses/underpasses not taken into
consideration)
10 99.9%
Determine street segments not coincident with
ESN boundary 166 N/A
ALI Database Results Synchronization
Percentage
Comparison to MSAG for synchronization 2 99.98%
Comparison to centerline 1,271 87.72%
MSAG Database Results Synchronization
Percentage
Review street name and community name
consistency No issues N/A
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-22
Public Safety Consulting, GIS, and Software www.geo-comm.com
Next Generation Standards
The use of GIS data moving forward into a Next Generation 9-1-1 (NG9-1-1) system takes on an expanded
role from the call location in the PSAP today. GIS data will be used in the validation of location information
[Location Validation Function (LVF)] such as civic address or coordinates prior to a device contacting 9-1-1.
GIS will also be used in the routing of the 9-1-1 call to the correct PSAP [Emergency Call Routing Function
(ECRF)]. Essentially the GIS data will be taking the place of the MSAG data that is being used today.
Accurate and complete GIS data is a requirement based on the elevated use of GIS in a Next Generation
system. NENA standards outlined in Synchronizing GIS with MSAG & ALI found on the NENA website as
document 71-501, approved September 8, 2009 are used to prepare data for use within a NG9-1-1 system.
GIS Data Layers
The GIS data model for NG9-1-1 is still in the NENA workgroup stage and has not gone through the final
approval process; however, it is known that there will be two types of GIS data layers provisioned into the
LVF and ECRF. In addition, not all layers being used in PSAPs today will be provisioned to the LVF/ECRF.
The two types of required information are location and service boundary data.
Location Data
The location data layer(s) will be used to validate location information such as a civic address. If the
location cannot be validated or located in the GIS location data then components of the record will be
invalid.
Address points - recommended
Centerline as a backup or main location layer if address points not available
Building footprints are also an option
Service Boundaries
Service boundaries are used for validation and routing processes. The minimal boundary layers are listed
below, however additional boundaries layers may be needed based on the call transfer protocol in the
PSAPs. As an example, in the Next Generation system, a PSAP may transfer a call to poison control;
therefore a poison control service layer would be needed.
PSAP
Fire
Law
Medical
Political
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-23
Public Safety Consulting, GIS, and Software www.geo-comm.com
Attribute Fields
The GIS data model is still in development and therefore is not ready to be published. However attribute
recommendations have been discussed at various conferences. The NENA documentation is meant to
provide a minimal requirements guide. The final requirements may be based on desired workflow and
specifications of the local ECRF/LVF.
Address Point Specifications
A Next Generation system will have the ability to determine locations such as suite, apartment, floor,
etc. In order to utilize this functionality the map data would need to include the additional location
information. As an example, the system would not be able to determine the location of Apt 201 if an
address point was not developed to include that information. Therefore, the development process of
an address point layer needs to address the desired development process for multi-unit structures.
Type Possible Development Description
Address House number and street name data (recommend
parsed out)
Postal Community Postal community can be determined at the point
level. Difficult to develop with accuracy as a polygon
Postal Code Associated with postal community
Building Such as the building name on a campus
Floor Associated floor within the building
Unit Apartment, suite, or unit number
Location Additional location information
Landmark Vanity address or known landmark name
Type Residential, commercial, etc.
Note: Fields listed above have been discussed at NENA conferences. Final GIS Data Model has not been
approved. Fields may be required or optional.
Centerline Specifications
If address validation and routing will be using the centerline as the location data or a backup to an
address point file, additional fields that are used in the validation process will be required in the Next
Generation centerline. In the call location, typically the centerline utilized the ESN as the refining
search to find the location of the correct address such as 102 Main St. In Next Generation there will
no ESN for refinement, therefore the address information will need to be embedded in the centerline
attributes.
January 2012
Iowa Statewide Interoperable Communications System
9-1-1 Feasibility Study
Assessment of Existing Conditions Analysis Report 7-24
Public Safety Consulting, GIS, and Software www.geo-comm.com
Some field descriptions listed below could be required or optional.
Type Possible Development Description
Municipality Left/Right Municipality on the left or right side of the from
NODE.
Postal Community Left/Right Postal community spelled out on the left or right
side of the from NODE.
Postal Code Left/Right Postal code on the left or right side of the from
NODE.
MSAG Community Left/Right MSAG community on the left or right side of the
from NODE.
Note: Fields listed above have been discussed at NENA conferences. Final GIS Data Model has not been approved.
Fields may be required or optional.
Service Boundary Specifications
The service boundaries are similar to the ESN boundaries that are used in most systems today.
Current system only allows for fire, law, and medical while a Next Generation system can
accommodate beyond these three services. It could be extended to coast guard, forest patrol, poison
control, etc. The types of service boundaries will vary in different areas. The service boundaries will
be used for routing purposes in an Internet Protocol (IP) world so additional fields containing routing
information will be necessary.
Type Possible Development Description
Effective Date
Date the new service boundary goes into effect.
This is important based on annexations, service
agreements, etc.
ID of Agency Unique name for service
Response of Service Type of service represented in boundary
Routing URN/URL for routing
Agency Contact Information URI for the contact information location
Service Display Name Service Name such as Des Moines PD
Note: Fields listed above have been discussed at NENA conferences. Final GIS Data Model has not been approved.
Fields may be required or optional.