Resources for Cost Benefit Analysis

Crash Costs for Highway Safety Analysis
The Crash Costs for Highway Safety Analysis guide describes the various sources of crash costs, current practices and crash costs used by States, critical considerations when modifying and applying crash unit costs, and an exploration of the feasibility of establishing national crash unit cost values. This guide proposes a new set of national crash unit costs for the FHWA Highway Safety Benefit-Cost Analysis Guide and Tool as well as procedures to (1) update the crash unit costs over time, and (2) adjust the crash unit costs to States based on State-specific cost of living, injury-to-crash ratios, and vehicle-to-crash ratio.

Service Life and Crash Cost User Guide
This resource presents a synthesis of information used by the states for countermeasure service life and crash severity costs.

Safety Analyst Economic Appraisal Tool
This tool performs an economic appraisal of a specific countermeasure or several alternative countermeasures for a specific site. Default construction cost estimates for candidate improvements are provided within this tool, but the user has the capability to modify the default estimates based on local experience.

The Economic and Societal Impact of Motor Vehicle Crashes, 2010 (Revised)
This report presents the results of an analysis of motor vehicle crash costs in the United States.

Crash Cost Estimates by Maximum Police-Reported Injury Severity Within Selected Crash Geometries
This paper presents estimates for the economic (human capital) and comprehensive costs per crash for six KABCO groupings within 22 selected crash types and within two speed limit categories.


The information contained in the Crash Modification Factors (CMF) Clearinghouse is disseminated under the sponsorship of the U.S. Department of Transportation in the interest of information exchange. The U.S. Government assumes no liability for the use of the information contained in the CMF Clearinghouse. The information contained in the CMF Clearinghouse does not constitute a standard, specification, or regulation, nor is it a substitute for sound engineering judgment.