Cable Median Barrier Guidelines

Sicking, Dean L.; Lechtenberg, Karla A.; de Albuquerque, Francisco Daniel B.; Midwest Roadside Safety Facility; Midwest States Regional Pooled Fund Program

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Cable Median Barrier Guidelines

2008-12-08
By Sicking, Dean L. ; Lechtenberg, Karla A. ; de Albuquerque, Francisco Daniel B.

[PDF-993.35 KB]

English

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Details:

Creators:

Sicking, Dean L. ; Lechtenberg, Karla A. ; de Albuquerque, Francisco Daniel B.

Sicking, Dean L. ; Lechtenberg, Karla A. ; de Albuquerque, Francisco Daniel B. Less -
Corporate Creators:

Midwest Roadside Safety Facility ; Midwest States Regional Pooled Fund Program

Midwest Roadside Safety Facility ; Midwest States Regional Pooled Fund Program Less -
Corporate Contributors:

University of Nebraska--Lincoln ; United States. Federal Highway Administration

University of Nebraska--Lincoln ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Appurtenances Barriers (Roads) Cable Guardrail Guardrails Highway Safety I85: Safety Devices Used In Transport Infrastructure Longitudinal Barriers Median Barriers Median Guidelines Rope, Wire And Cable Systems Availability
Publication/ Report Number:

TRP-03-206-08
Resource Type:

Tech Report
Geographical Coverage:

United States ; Nebraska ; Kansas

United States ; Nebraska ; Kansas Less -
TRIS Online Accession Number:

1445997
Edition:

Final Report
Corporate Publisher:

Midwest Roadside Safety Facility
Abstract:

A detailed examination of accidentsin Kansas was undertaken in order to evaluate the need for cable median barrier. Hard copies of all accident reports from Kansas controlled-access freeways from 2002 through 2006 were reviewed. A total of 525 cross-median events and 115 cross-median crashes were identified. Crossmedian encroachment rates were found to be linearly related to traffic volume, while cross-median crash rates appeared to have second-order relationship with volume. Cross median crashes were found to be much more frequent during winter months, and the severity of wintertime crashes was found to be lower. This finding indicates that median barrier guideline criteria may need to be adjusted to accommodate regional climate differences. This is especially true for guidelines based upon cross-median crash rates. A relationship was developed between cross-median crash rate and traffic volume for Kansas freeways with median widths of 60 feet (18.3 meters). This relationship was then combined with encroachment rate and lateral extent of encroachment data from Cooper to develop general guidelines for the use of cable median barriers along Kansas freeways, which typically have 6:1 or flatter slopes.
Format:

PDF
Funding:

SPR-3(017)
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:bea8b1304bf7f5064d11dc6e86999bddf28da63c1f6f2aaebabc5a26c8051fe1
Download URL:

https://rosap.ntl.bts.gov/view/dot/39189/dot_39189_DS1.pdf
File Type:

No Additional Files

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Cable Median Barrier Guidelines

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