PIARC T.C. C2.1 Comparison of National Road Safety Policies

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PIARC T.C. C2.1 Comparison of National Road
Safety Policies PlansCrash Analysis/Problem
DefinitionOctober 2008
Larry E. Tibbits Michigan Department of
Transportation Kuala Lumpur, Malaysia
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Crash Information in Michigan to Define Problems
Areas
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Crash Incident Documentation/Processing

• Crash report is completed by Law Enforcement
  Officer
• All crashes involving injuries, and most property
  damage crashes must be reported
• Statewide standard crash report form (next
  slides)
• Paper and electronic version of crash report form
• All reports processed by Michigan State Police
• All reported crashes are located on linear and
  GIS based referencing systems

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Michigan Crash Report Form (front)
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Michigan Crash Report Form (back)
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Crash Processing

• Scan the form and create electronic image
• Use intelligent character recognition of written
  information
• Validate text data
• Attach location information
• Post crash data to crash data warehouse

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Safety Analysis to DefineProblem Areas

• Michigan Strategic Highway Safety Plan data
  driven identification of 12 safety focus areas
• Identification of Engineering, Enforcement,
  Education, and Emergency Medical Services
  treatments
• Highway Safety Improvement Program (HSIP)
• Identify high crash locations for treatment
• 5 Report worst 5 of locations statewide
• Post safety treatment evaluations

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Safety Analysis to DefineProblem Areas

• Of the 12 SHSP focus areas, three are
  predominately addressed by the HSIP
• Intersection safety
• Pedestrian and Bicycle Safety
• Lane Departure

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Safety Analysis to DefineProblem Areas

• These locations are identified through
• High crash list
• 5 Report
• Fatality and serious Region wide maps
• Project Required Safety Reviews
• Customer concerns
• Pavement friction analyses

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Summary

• Michigan a has sound crash records system in
  place
• Crash data, along with other safety data allow
  for problem identification, selection of
  treatments, and evaluation of implemented safety
  treatments
• Crash data is essential to Michigan identifying
  strategic highway safety goals and monitoring
  safety performance
• http//www.michigan.gov/tands