project safety management system safety tools for traffic investigators oregon department of...

Project Safety Management System

Safety Tools For Traffic InvestigatorsOregon Department of Transportation

February 2010

http://tig.transportation.org/?siteid=57&pageid=2197

http://mutcd.fhwa.dot.gov/pdfs/2003/Ch2C.pdf


SPIS and SIP Maps and ReportsSPIS – Safety Priority Index System

SIP – Safety Investment Program

http://egov.oregon.gov/ODOT/TD/TDATA/gis/odotmaps.shtml#SPIS_SIP_Maps

http://intranet.odot.state.or.us/tstrafmgt/spis2009.htm


Tools Available on the internet: https://keiko36.odot.state.or.us/whalecome5690917adb26326abdb252e22d8/whalecom0/SecureKeiko36PortalHomePage


Crash DataTransGIS & STIP

Scoping Tool

https://keiko36.odot.state.or.us/whalecome5690917adb26326abdb252e22d8/whalecom0/SecureKeiko36PortalHomePage/

https://keiko36.odot.state.or.us/whalecomfa2b1917adbf61279996f371d4822d70f2ef5c5afa744bbe8575982e1d360f/whalecom0/main/index.htm

Routes to State Highway cross reference table: http://www.oregon.gov/ODOT/TD/TDATA/tsm/tvt.shtml

http://s-salemrev-110/main/transgis_tutorials.htm


Crash Graphing ToolScatter Plots

https://keiko36.odot.state.or.us/whalecome5690917adb26326abdb252e22d8/whalecom0/SecureKeiko36PortalHomePage


Crash Summary Database Digital Highway Log

http://www.oregon.gov/ODOT/TD/TDATA/rics/VideoLog.shtml

http://maps.google.com/help/maps/streetview/

http://intranet.odot.state.or.us/tstrafmgt/PSMS/SPIS/csdsumm.htm


Collision Diagram Tools

http://www.pdmagic.com/crashmagiconline/


Crash Reduction Factors

Cost Benefit Worksheet

http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/docs/excel/CRFWorksheet.xls

http://its.pdx.edu/CRF/CRFweb/

http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/docs/excel/BC_Form_HIGHWAY_SAFETY_PROJECTS_2007.xls

CRF Resources List

WORKSHEET GUIDELINES

Guidelines

Safety Improvements by Crash Patterns

Safety Improvements by Road

Characteristics

Main Menu

CRF by Injury Level

CRF by Crash Type

CRF by Environmental

Factors

Full Matrix CRF

Crash Reduction Factors determined by the PSU study are shown in Bold Type. Crash Reduction Factors from the ODOT Crash Analysis Tool are shown in Regular Type. Crash Reduction Factors from other Resources are shown in Gray Type.

RESOURCE LINKS

PSU 2006 CRF Update

ODOT CAT tool CRF

The following worksheets show crash reduction factors (CRF) for many safety mitigation measures. Three worksheets show CRF ranges for a specific set of parameters. The 3 views are CRF for injury level, crash type, and environmental factors. The last worksheet looks at safety migitation measures by crash patterns for various road configurations. These are intended as brainstorming tools - this sheet does not provide CRF but suggests documented possibilities to consider for various scenarios.

The first source of information for the CRF is from research completed in June 2006 by Portland State University and Oregon State University to update the previous ODOT crash reduction factors. Their report and crash mitigation analysis tool including CRF is available on line at http://its.pdx.edu/CRF/CRFweb/. For safety mitigation measures not evaluated with CRF by this study, the previous ODOT CRF from the Counter Measures Tool have been used. These can be found on the internet at http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/docs/pdf/Counter_Measures.pdf.

There were safety mitigation measures researched and presented by PSU, as well as measures that have been used successfully by ODOT and others, that did not have CRF that could be determined from the resources used in these studies. There were several other states that have completed major efforts to identify CRF. A handful of these were selected to help provide CRF ranges where none were provided by either ODOT resource. Those selected did extensive research for their CRF, used more data and rigorous statistical analysis, and have ongoing re-evaluation programs. The resources used for this latest version of the Workbook are available on line through the Crash Reduction Factors Resource List.

These crash reduction factors are presented as ranges unless only one value was available. Engineering analysis, expertise and judgment are required in selecting the most appropriate factor for each project.

CRASH REDUCTION FACTORS WORKBOOK

Select Worksheet

↓↓

Final countermeasure selection should be based on sound engineering judgment and should conform to applicable ODOT and FHWA policies and procedures.

These crash reduction factors are presented as ranges unless only one value was available. Engineering analysis, expertise and judgment are required in selecting the most appropriate factor for each project.

Desktop Reference For Crash Reduction Factors

Report No. FHWA-SA-07-015U.S. Department of TransportationFederal Highway Administration September 2007

http://www.transportation.org/sites/safetymanagement/docs/Desktop%20Reference%20Complete.pdf

NEW 12/01/09 by FHWA http://www.cmfclearinghouse.org/


GIS-Based Analysis• Useful tool for crash

patterns (snow/ice crashes, lane departure crashes, etc.)

• More complex analysis possible

• Relationship between crashes and other data (i.e., high speed signalized intersections)

Dynamic Signs

Ice Sensor

http://s-salemrev-110/main/transgis_tutorials.htm


Other Tools and Data available• Aerial Photography• Maps• Highway Inventory

files• Traffic Counts

http://egov.oregon.gov/ODOT/TD/TDATA/gis/odotmaps.shtml

http://egov.oregon.gov/ODOT/TD/TDATA/gis/gislinks.shtml#Maps_and_GIS_Data

http://www.oregon.gov/ODOT/TD/TDATA/tsm/tvt.shtml#Traffic_Counting_Websites

http://www.oregon.gov/ODOT/TD/TDATA/otms/OTMS_Highway_Reports.shtml

http://maps.google.com/help/maps/streetview/


National Publications• Low Cost Local Road

Safety Soutions

• Lane-Departure• NCHRP Report 500

Safety Emphasis Guides http://safety.transportation.org/guides.aspx

http://downloads.transportation.org/PLD-1.pdf

http://docs.mvrpc.org/safety/Low_Cost_Local_Roadway_Safety_Solutions.pdf

• Low-Cost Safety Enhancements for Stop-Controlled and Signalized Intersections http://safety.fhwa.dot.gov/intersection/resources/fhwasa09020/fhwasa09020.pdf


Evaluation of Program

• FHWA HSIP Report and evaluation– Top 5% sites – Before/After evaluation of Safety Projects

• Lane Departure Projects• Rumble strip Installations• Interstate Speed changes• Illumination reductions• Interstate Median Crossover Crashes• SIP Evaluation Research

http://safety.fhwa.dot.gov/hsip/fivepercent/

http://www.its.pdx.edu/project.php?id=2006-02

http://www.its.pdx.edu/illumination/PSU_IlluminationFinalReport_8.1.07.pdf

http://safety.fhwa.dot.gov/hsip/

http://www.its.pdx.edu/speedlimits/final%20interstate%20speed%20review%20report%20(9.12).pdf


• 1. Road Safety Audits • 2. Rumble Strips and Rumble Stripes • 3. Median Barriers • 4. Safety Edge • 5. Roundabouts • 6. Left and Right Turn Lanes at Stop-Controlled Intersections • 7. Yellow Change Intervals • 8. Medians and Pedestrian Refuge Areas in Urban and Suburban Areas • 9. Walkways

FHWA Guidance on 9 proven safety countermeasures which have a positive impact on safety:

http://safety.fhwa.dot.gov/policy/memo071008/

http://safety.fhwa.dot.gov/policy/memo071008/


Safety Edge

http://safety.fhwa.dot.gov/roadway%5Fdept/pavement/fhwasa09023/

Pavement edge drop-off


Research• Development of the Safety Investigations Manual

http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/highway_safety.shtml

• Safety of High Speed Signalized Intersections• Highway Safety Manual (HSM) Data Needs & Assessment• Evaluation of Collision Diagramming Tools• Assessment of Statewide Intersection Safety Performance• Enhancement of ODOT’s Crash Reduction Factors • Calibrating HSM Predictive Methods for Oregon• Enhancing the Oregon Crash Reporting Process

http://www.highwaysafetymanual.org/Home/Home.html

http://www.its.pdx.edu/crashreport/04_02_TransNOW_CrashReport05_016_06_FINAL.pdf

http://www.its.pdx.edu/CRF/Crash_Reduction_Factors_PUBLISH.pdf

http://www.its.pdx.edu/pdf/FinalReport_CollisionDiagrammingToolsEvaluation.pdf



http://tti.tamu.edu/documents/5-4022-01-1.pdf


Highway Safety Investigation Manual for the Oregon Dept. of Transportation http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/highway_safety.shtml

Table of Contents1 Manual Overview and Purpose2 Safety Investigation Basic3 Overview of Data Types and Sources4 Diagnosing Crash Patterns5 Site Investigations6 Countermeasure Selection and Recommend Improvements

Analysis7 Documentation and Implementation8 References9 Appendix A – Worksheets10 Appendix B – Instructions for Worksheets11 Appendix C – Example Problems12 Appendix D – Case Studies


Training• Explicit Consideration of Safety (Jake Kononov & Bryan Allery, CDOT)

• Human Factors http://safety.fhwa.dot.gov/training/pcb/pro_courses.cfm

• New Approaches to Highway Safety Analysis (NHI Course No. 380075)

• Safety Analyst Software http://www.safetyanalyst.org/devactivities.htm

• Road Safety Audits (http://safety.fhwa.dot.gov/rsa) Instructed by Craig Allred

• Institutional Needs in Highway Safety Planning• Improving Pedestrian Crossing Safety http://safety.fhwa.dot.gov/ped_bike/

• Roadside Design Guide http://www.fhwa.dot.gov/resourcecenter/teams/safety/0608roadsidedesign.pdf

• Traffic Safety Workshops at OSU http://kiewit.oregonstate.edu/workshops.html


Questions?

Tim Burks, [email protected] (503)986-3572

Highway Safety Engineering Coordinator

Oregon Department of Transportation

http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/

project safety management system safety tools for traffic investigators oregon department of...

Documents

maps http

fhwa http

comhelpma http

govhsipfivepercent http

educrfcrfweb http

govhsip http

safety emphasis guides

signalized intersections