dynamic gis-based pavement condition tracking
DESCRIPTION
Dynamic GIS-based Pavement Condition Tracking. Pavement Management. BIG PICTURE Save time and money through more effective management of road assets. Enable graphical visualization and analysis of pavement conditions. Map your street system Keep inventory Track work histories - PowerPoint PPT PresentationTRANSCRIPT
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Dynamic GIS-based Pavement Condition Tracking
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Pavement Management
BIG PICTURE• Save time and money
through more effective management of road assets.
• Enable graphical visualization and analysis of pavement conditions.
• Map your street system• Keep inventory• Track work histories• Attach photos, plans, etc.• Create reports
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Methodology
• Many “Schools of Thought” in Pavement Inventory– “Do Nothing” Plan– Calculated Pavement Management Plan – “Do Something!”
• PCI (Pavement Condition Index)– Grade represents a scale of current pavement
condition– Usually rated as a percentage – 0 to 100
GoverningDistress and
Other Distresses
PCIRecommende
dTreatment
Estimated Treatment
Costs
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Planning Road Treatments
$$$ $$$$ Excellent
Good
Fair
Poor
Failed
Maintenance:Crack Sealing ($)
Preventative Maintenance:Chip Sealing; Microsurfacing ($$)
Rehabilitation:Overlays ($$$$)
Major Rehabilitation::Mill and Overlay; Reconstruction ($$$$$$)
0 20
100
PCI
Years
The cost to repair a roadway becomes greater with time. The rate of deterioration is exponential
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Mountain Home – Case Study• Doesn’t want to implement additional systems or new
software tools.• Integrate the street department’s information with the
city’s GIS system.• Share with department heads and other departments
city-wide.• ASTM International – PCI methodology• Steps for PCI Calculation:
– Inventory Roads– Come up with raw deduct values– Determine final deduction value– Subtract from 100 to get final PCI
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Inventory Roads
• Measure road cracking in the field– Severity – High,
Medium, Low– Extent – Percentage
of sample that has covered in each type of distress
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Calculate Raw Deduct Values
• Use charts to find raw deduct values for each distress based on its extent and severity
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Calculate the PCI
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Examine the Results
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
The Process
…analyze and report the results in the officeUpdate conditions in the field…
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
GIS in Pavement Management
UpdateRoad
Network
PavementInventory
RecommendedTreatments
Planning andBudgeting
RoadImprovements
GIS
NORTHWEST GIS USERS GROUP CONFERENCE – OCTOBER 20, 2011
Q & A
Ryan CosbyGIS SpecialistGateway Mapping, Inc.250 S. Beechwood St. Suite 201 Boise, ID 83709p: 208 376.7330 | c: 208 419.8567 | e: [email protected] THE J-U-B FAMILY OF COMPANIES:
www.jub.com | www.gatewaymapping.com | www.langdongroupinc.com Gateway Mapping software and services:www.spatialgenerations.com | www.namesinstone.com | www.spatialim.com