Objectives

Michigan’s ViewA State Perspective

Presentation to TRBSession 356 - January 22, 2007

Larry E. Tibbits, P.E.

• Data provided to study • Products realized• Future participation• Observations

Objectives

• Reduce death and serious injury on U.S. roads which can be addressed by practical road improvement measures

• Ensure that assessment of risk lies at the heart of strategic road improvement decisions

usRAP Objectives

DataStatewide System:• Crash data for 2000 - 2004

State Trunkline System:• Road type (i.e., two-lane, multilane

undivided, multilane divided, freeway)• Section length• Traffic volume

Local DataTwo Michigan Counties:• Crash and road data as noted

above• Sampling of data for RPS ratings

This data allowed the research team to develop the following statewide risk maps

• Include 2005 crash data to generate new maps

• Participate in field reviews of “black roads” with Midwest Research Institute

• Develop additional maps• Furnish safety project information

to facilitate “performance tracking”

What’s Next

• Help highway safety professionals focus on troublesome segments

• Communicate opportunities to improve safety

• Improve communications with the public

Value to a State DOT

• Was this a worthwhile exercise?

• Would we recommend that other states participate in usRAP?

Observations

Michigan ContactsDale R. Lighthizer, P.E.Michigan Department of TransportationP.O. Box 30050Lansing, Michigan 48909Phone: 517-373-2334E-mail: [email protected]

Larry E. Tibbits, P.E.Telephone: 517-373-4656E-mail: [email protected]