The Southeast Michigan Council of GovernmentsThe Southeast Michigan Council of Governments

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Crash Analysis Tools and Crash Analysis Tools and Training for Local UsersTraining for Local Users

J. Thomas Bruff, Engineering Coordinator

. . . a partnership. . . a partnership

. . . a forum. . . a forum

. . . an advocate. . . an advocate

. . . a data resource. . . a data resource

. . . a regional planner. . . a regional planner

is . . .is . . .

AA PresentationPresentation

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St. Clair

MacombOaklandLivingston

Washtenaw Wayne

Monroe

*City of Detroit

• 4.9 million people4.9 million people• 3.8 million 3.8 million

vehicles/3.3 million vehicles/3.3 million driversdrivers

• 42 billion annual 42 billion annual vehicle miles traveledvehicle miles traveled

• 22,576 miles of road 22,576 miles of road (727 congested miles)(727 congested miles)

• 3,543 bridges (1,288 3,543 bridges (1,288 deficient)deficient)

• 27.5 million vehicles 27.5 million vehicles crossing our borders crossing our borders annuallyannually

• 72 million passenger 72 million passenger trips via transittrips via transit

Regional StatsRegional Stats

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180,739180,739traffic traffic

crashescrashes

505 505 fatalitiesfatalities

4,360 4,360 severe severe injuriesinjuries

(year 2001)(year 2001)

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Safety AnalysisSafety AnalysisIn the Beginning…In the Beginning…

• Traditional MPO process Traditional MPO process • Highway operations and traffic Highway operations and traffic

flow improvement, 1978flow improvement, 1978• Signal timing studies, 1982Signal timing studies, 1982

– Access managementAccess management• Crash data acquisition and Crash data acquisition and

analysisanalysis

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Crash Data AnalysisCrash Data Analysis

• Obtained data from state police Obtained data from state police • Consolidated Detroit and state police Consolidated Detroit and state police

crash formscrash forms• Created Michigan Street Index SystemCreated Michigan Street Index System

– Michigan Accident Location Index (MALI)Michigan Accident Location Index (MALI)• Automated crash analysis processAutomated crash analysis process

– SSEMCOG accident analysis systemEMCOG accident analysis system

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Crash Data AnalysisCrash Data Analysis

• Need to integrate other dataNeed to integrate other data– MALIMALI– Transportation monitoring systemTransportation monitoring system– TIGERTIGER– MIRISMIRIS

• Michigan Geographic Framework Michigan Geographic Framework ProjectProject

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SEMCOG Safety ObjectivesSEMCOG Safety Objectives

• Mainstream traffic safety in Mainstream traffic safety in planningplanning

• Encourage traffic safety analysisEncourage traffic safety analysis– Coordinate with traffic safety partnersCoordinate with traffic safety partners– Educate elected officials and private Educate elected officials and private

citizenscitizens– Provide data and engineering Provide data and engineering

assistance to local safety partnersassistance to local safety partners

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SEMCOG Safety MethodsSEMCOG Safety Methods

• Develop traffic safety tools and Develop traffic safety tools and analysis proceduresanalysis procedures– SEMCOG Traffic Safety ManualSEMCOG Traffic Safety Manual– Comprehensive Analysis Safety Tool Comprehensive Analysis Safety Tool

(CAST) software(CAST) software• Integrate safety analysis into Integrate safety analysis into

project planningproject planning

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SEMCOG Traffic Safety ToolsSEMCOG Traffic Safety Tools• SEMCOG Traffic Safety Manual SEMCOG Traffic Safety Manual

and CAST softwareand CAST software– Identifies high-crash locationsIdentifies high-crash locations

» Includes three years of crash data Includes three years of crash data » Performs a peer-group analysisPerforms a peer-group analysis

– Identifies crash causesIdentifies crash causes– Provides countermeasure pick listProvides countermeasure pick list– Performs benefit/cost analysisPerforms benefit/cost analysis

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Something MissingSomething Missing

• Develop training programDevelop training program

SolutionSolution

• Iowa DOT Circuit Rider model Iowa DOT Circuit Rider model training programtraining program

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Training IssuesTraining Issues

• Target audience/various skill Target audience/various skill levelslevels

• User needs (reports vs. User needs (reports vs. analysis)analysis)

• Type of training (lecture vs. Type of training (lecture vs. hands-on)hands-on)

• Follow-up trainingFollow-up training

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SEMCOG Next StepsSEMCOG Next Steps• Completed CAST software Completed CAST software

enhancementenhancement• Integrating 2000 and 2001 crash data Integrating 2000 and 2001 crash data

into CAST software into CAST software • Update peer group analysis in Update peer group analysis in

Summer/Fall 2002 Summer/Fall 2002 • Begin formal training Winter 2002 Begin formal training Winter 2002

using Michigan approach to the Iowa using Michigan approach to the Iowa DOT Circuit Rider modelDOT Circuit Rider model