Update and Enhancement of Oregon Department of Transportation’s Crash Reduction Factors
 
Research conducted by Chris Monsere, Robert L. Bertini, Aaron Breakstone, and Peter Bosa, David DeLaHoussye, Carolyn Bonner from Portland State University, Kate Hunter-Zaworski and Matt Little from Oregon State University, Beth Wemple of Kittelson and Associates and John McGill of Synectics

SPONSOR: Oregon DOT, Research Unit

BUDGET: $70,000

OVERVIEW: The primary objective of this research is to provide an updated, comprehensive list of crash reduction factors for ODOT engineers. This will improve the chances of selecting the best safety improvement countermeasure and enhancing project development for the funding provided. A secondary objective is to document key aspects of the CRFs so engineers will be better informed when selecting the appropriate countermeasures. Accurate crash reduction factors (CRF) are critical to selecting the most cost-effective countermeasure for highway safety improvement projects. The CRF list is the primary resource used by engineers for safety project development and evaluation. Since the original development of Oregon DOT’s CRF list, there has been significant methodological improvements to evaluate the effectiveness of engineering countermeasures which has produced a wealth of new published research. There is a clear need to validate ODOT’s crash reduction factors using this work and incorporate new countermeasures into the list. If the CRF list is not updated, the most cost-effective safety solutions may be overlooked.

INTERACTIVE WEBSITE [PSU Website - Not official ODOT Site ]

EXECUTIVE SUMMARY (POCKET GUIDE) : PDF

FINAL REPORT: Monsere, C. Bertini, R.L., Breakstone, A., de la Houssaye, D., Horowitz, Z., Hunter-Zaworski, K. , “Update and Enhancement of Oregon Department of Transportation’s Crash Reduction Factors.” Portland State University, Center for Transportation Studies, Research Report, March 2006. FHWA-OR-RD-06-11

PRESENTATIONS

D. de la Houssaye, , Monsere, C., Bertini, R.L., Bosa, P., and “Improving the Highway Safety Process: An Update and Enhancement to the Oregon DOT’s Crash Reduction Factors List.” Institute of Transportation Engineers, District 6 Annual Meeting, Kalispell, Montana, July 13, 2005.

Little, M. "Research to Update the Oregon Department of Transportation’s Crash Reduction Factor List" Master's Research Project Defense. September 24, 2004.

PAPERS

Monsere, C., A. Breakstone, Bertini, R.L., D. Bish. “Developing an Online Tool for Delivering Research Results: An Update to the Oregon Department of Transportation’s Crash Reduction Factor Database.” Transportation Research Record: Journal of the Transportation Research Board, Washington, D.C., 2007. (Accepted for publication)

Monsere, C., Bertini, R.L., Bosa, P., and de la Houssaye, D. “Improving the Highway Safety Process: An Update and Enhancement to the Oregon DOT’s Crash Reduction Factors List.” Institute of Transportation Engineers, District 6 Annual Meeting, Kalispell, Montana, July 10-13, 2005.

Little, M. "Creation of a CRF Matrix for use in updating ODOT’s Crash Reduction Factor List " Master's Research Project Report. September 2004.

USEFUL LINKS AND RESOURCES

• Highway Safety Manual
• Safety Analyst

AGENCY REPORTS

• Kentucky Transportation Center
• Michigan DOT
• North Carolina DOT
• Ohio DOT
• South Dakota DOT

For more information contact

Professor Monsere , monsere@pdx.edu
Intelligent Transportation Systems Lab
Portland State University PO Box 751
Portland, OR 97207