Evaluation of safety treatments for roadside culverts.

Albuquerque, Francisco Daniel B.; Sicking, Dean L.; Lechtenberg, Karla A.; Midwest Roadside Safety Facility

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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.

i

Evaluation of safety treatments for roadside culverts.

2009-04-24
By Albuquerque, Francisco Daniel B. ; Sicking, Dean L. ; Lechtenberg, Karla A.

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Creators:

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

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

Midwest Roadside Safety Facility
Corporate Contributors:

Iowa. Highway Research Board ; United States. Federal Highway Administration

Iowa. Highway Research Board ; United States. Federal Highway Administration Less -
Subject/TRT Terms:

[+]

Benefit-cost Analysis Benefit Cost Analysis Culverts Highway Safety Roadside Roadside Safety Analysis Program
Publication/ Report Number:

TRP-03-201-09 ; IHRB TR-517

TRP-03-201-09 ; IHRB TR-517 Less -
Resource Type:

Tech Report
Geographical Coverage:

Nebraska
Edition:

Final report; 2004-2009.
Corporate Publisher:

Midwest Roadside Safety Facility
Abstract:

Roadside cross-drainage culverts have been found to impact vehicle accident injury levels.

Designers have commonly used three safety treatments to protect errant drivers from culvert accidents.

These treatments have included: culvert extension, guardrail installation and grating. In order to define

which safety treatment is the most appropriate, benefit-cost analysis has used accident cost reduction to

estimate societal gains earned by using any safety treatment.

The purpose of this study was to estimate accident costs for a wide range of roadway and roadside

characteristics so that designers can calculate benefit/cost ratios for culvert safety treatment options under

any particular scenario.

This study began with conducting a parametric study in order to find variables which have

significant impact on accident cost changes. The study proceeded with highway scenario modeling which

included scenarios with different values for combinations of roadway and roadside variables. These

variables were chosen based upon findings from the parametric study and their values were assigned based

upon highway classification. This study shows that the use of different culvert safety treatments should be

flexible to roadway and roadside characteristics. It also shows that culvert extension and grating were the

safety treatments found to produce the lowest accident costs for all highway scenarios modeled. Therefore,

it is believed that the expanded adoption of culvert extension and culvert grates can improve overall

highway safety.
Format:

PDF
Collection(s):

US Transportation Collection
Main Document Checksum:

[+]

urn:sha256:6dca516d39d218e93598dc6a9b9a6fb58ef79c2c58b28782c1a221c2e4d9c029
Download URL:

https://rosap.ntl.bts.gov/view/dot/24113/dot_24113_DS1.pdf
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Evaluation of safety treatments for roadside culverts.

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