Developing Crash Modification Factors For Variable Speed Limits [tech brief]

Avelar, Raul; Park, Eun Sug; Ashraf, Sruthi; Dixon, Karen; Li, Minh; Dadashova, Bahar

doi:10.21949/1521666

i

Developing Crash Modification Factors For Variable Speed Limits [tech brief]

2021-08-01
By Avelar, Raul ; Park, Eun Sug ; Ashraf, Sruthi ; ...

File Language:

English

Details

Creators:

Avelar, Raul ; Park, Eun Sug ; Ashraf, Sruthi ; Dixon, Karen ; Li, Minh ; Dadashova, Bahar
Corporate Creators:

United States. Department of Transportation. Federal Highway Administration. Office of Research, Development, and Technology
Corporate Contributors:

Turner-Fairbank Highway Research Center
Subject/TRT Terms:

Benefit Cost Analysis Crash Modification Factors Highway Corridors Time Series Analysis Traffic Models Variable Speed Limits
Publication/ Report Number:

FHWA-HRT-21-080
DOI:

https://doi.org/10.21949/1521666
Resource Type:

Brief
Geographical Coverage:

United States
Corporate Publisher:

United States. Federal Highway Administration. Office of Research, Development, and Technology
Abstract:

The Federal Highway Administration established the Development of Crash Modification Factors (DCMF) program in 2012 to address highway safety research needs for evaluating new and innovative safety strategies (i.e., improvements) by developing reliable quantitative estimates of their effectiveness in reducing crashes. The Evaluation of Low-Cost Safety Improvements Pooled Fund Study (ELCSI-PFS) functions under the DCMF program. The Technical Advisory Committee (TAC) formed by the ELCSI-PFS’ 41 State department of transportation (DOT) members provides the DCMF program with technical feedback on safety improvements. The participating State DOTs then implement new safety improvements to facilitate evaluations. The research summarized in this TechBrief addresses and evaluates variable speed limits (VSLs) as a safety improvement strategy. The ELCSI-PFS TAC selected VSL treatment as one of their priority treatments of interest. This TechBrief provides an overview and summary of the literature review, data collection, statistical evaluations, crash modification factors (CMFs), and benefit–cost (B/C) ratios for VSLs.
Format:

PDF
Funding:

DTFH6116D00039-0002
Collection(s):

Federal Highway Administration
Main Document Checksum:

urn:sha-512:b9b20df725cf86db62ac89354c41286044e3c12f5ecd6ffe986f3e8f4b8694e36d95de557542d514ef3b160c3a5d01c84a6efd62c498fb0460e8dcbd0ebc6694
Download URL:

https://rosap.ntl.bts.gov/view/dot/58564/dot_58564_DS1.pdf
File Type:

[PDF - 322.52 KB ]

File Language:

English

ON THIS PAGE

Details

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.