Crash Modification Factor Recommendation List

Crash Modification Factors (CMFs) are used to adjust crash predictions based on changes in geometrics, typically based on a specific countermeasure. When evaluating design alternatives, CMFs can be used in conjunction with safety performance functions (SPFs) to compute crash predictions. These crash predictions, along with costs associated with the design alternatives, are useful for making data-driven decisions. The CMF Clearinghouse is a repository of CMFs that is sortable and filterable, making it easy to find specific CMFs. In many cases there are several CMFs for the same countermeasures, however. While some CMFs only apply to specific facility or crash types. Selecting the most appropriate CMF for a given application can require extensive review of the associated research that led to the development of the CMF, despite use of the star rating system. A vetted list of practical CMFs to serve as a standard for practitioners in Kentucky is necessary as well as guidance tailored for Kentucky highways and conditions.

Language

English

Project

Status: Completed
Funding: $175000
Contract Numbers:
SPR 19-578
Sponsor Organizations:
Kentucky Transportation Cabinet

200 Mero Street
Frankfort, KY United States 40622
Performing Organizations:
University of Kentucky, Lexington

Kentucky Transportation Center College of Engineering, 176 Raymond Building
Lexington, KY United States 40506-0281
Principal Investigators:
Green, Eric
Start Date: 20180701
Expected Completion Date: 20200630
Actual Completion Date: 0

Subject/Index Terms

TRT Terms: Countermeasures; Crash risk forecasting; Highway safety; Recommendations; Standards
Identifier Terms: Safety Performance Functions
Geographic Terms: Kentucky
Subject Areas: Highways; Safety and Human Factors;

Filing Info

Accession Number: 01677445
Record Type: Research project
Source Agency: University of Kentucky, Lexington
Contract Numbers: SPR 19-578
Files: RIP, STATEDOT
Created Date: Aug 6 2018 2:53PM