Transcript Document

Michigan’s View
A State Perspective
Presentation to TRB
Session 356 - January 22, 2007
Larry E. Tibbits, P.E.
Objectives
•
•
•
•
Data provided to study
Products realized
Future participation
Observations
usRAP 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
Data
Statewide 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 Data
Two 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
What’s Next
• 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”
Value to a State DOT
• Help highway safety professionals
focus on troublesome segments
• Communicate opportunities to
improve safety
• Improve communications with the
public
Observations
• Was this a worthwhile exercise?
• Would we recommend that other
states participate in usRAP?
Michigan Contacts
Dale R. Lighthizer, P.E.
Michigan Department of Transportation
P.O. Box 30050
Lansing, Michigan 48909
Phone: 517-373-2334
E-mail: [email protected]
Larry E. Tibbits, P.E.
Telephone: 517-373-4656
E-mail: [email protected]