Study Details
Study Title: Safety Edge Crash Modification Factors
Authors: Hallmark et al.
Publication Date:AUG, 2016
Abstract: The Safety Edge is a relatively low-cost countermeasure that can be applied in both asphalt and concrete paving operations. The Safety Edge has been promoted as a low-cost countermeasure to reduce the frequency and severity of rural roadway departure crashes. However, there is little information about the actual effectiveness of the Safety Edge in reducing the number and severity of crashes.This study evaluated the safety impact of the Safety Edge for construction projects in 2010 and 2011 in Iowa to assess the effectiveness of the treatment in reducing crashes. [Text taken from TechBrief problem statement and project objective]
Study Citation: Hallmark, S. L., A. Goswamy, and M. Pawlovich. 2016. Safety Edge Crash Modification Factors Tech Brief. Center for Transportation Research and Education and Midwest Transportation Center, Institute for Transportation, Iowa State University, Ames, IA.
Study Report: Download the Study Report Document
CMFs Associated With This Study
Category: Shoulder treatments
Countermeasure: Install safety edge treatment
| CMF | CRF(%) | Quality | Crash Type | Crash Severity | Roadway Type | Area Type |
|---|---|---|---|---|---|---|
| 0.87 | 13 |  | Non-intersection | All | All | Rural |
| 0.84 | 16 |  | Non-intersection | K,A,B,C | All | Rural |
| 0.9 | 10 | | Non-intersection | O | All | Rural |
| 0.88 | 12 | | Run off road | All | All | Rural |
| 0.92 | 8 | | Run off road | K,A,B,C | All | Rural |
| 0.86 | 14 | | Run off road | O | All | Rural |
