Prediction of the expected safety performance of rural two-lane highways
(Web-Based Document)

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Author
Harwood, Douglas W.,
Contributors
Griffith, Michael S.
Midwest Research Institute (Kansas City, Mo.)
United States. Federal Highway Administration. Office of Safety R&D, sponsoring corporate body.
Turner-Fairbank Highway Research Center, issuing body.
Published
McLean, VA : U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center, December 2000.
Status
Available Online
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LocationCall NumberStatus
Web-based Documents or Files - World Wide WebXX(1371334.1)Available Online

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Links

https://purl.fdlp.gov/GPO/gpo92422

Subjects

LC Subjects
Rural roads -- Safety measures.
Traffic accidents -- Mathematical models.
Traffic safety -- Mathematical models.

More Details

Published
McLean, VA : U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center, December 2000.
Format
Web-Based Document
Physical Desc
1 online resource (200 unnumbered pages) : illustrations
Language
English

Notes

General Note
"Performing organization: Midwest Research Institute"--Technical report documentation page.
General Note
"Contracting Officer's Technical Representative (COTR): Michael S. Griffith"--Technical report documentation page.
General Note
"December 2000."
General Note
"Publication no. FHWA-RD-99-207."
General Note
Includes appendixes and tables.
General Note
Available online.
Bibliography
Includes bibliographical references (pages 115-124).
Type of Report an Period Covered
Technical report;,May 1997-September 2000.
Description
This report presents an algorithm for predicting the safety performance of a rural two-lane highway. The accident prediction algorithm consists of base models and accident modification factors for both roadway segments and at-grade intersections on rural two-lane highways. The base models provide an estimate of the safety performance of a roadway or intersection for a set of assumed nominal or base conditions. The accident modification factors adjust the base model predictions to account for the effects on safety for roadway segments of lane width, shoulder width, shoulder type, horizontal curves, grades, driveway density, two-way left-turn lanes, passing lanes, roadside design and the effects on safety for at-grade intersections of skew angle, traffic control, exclusive left- and right-turn lanes, sight distance, and driveways. The accident prediction algorithm is intended for application by highway agencies to estimate the safety performance of an existing or proposed roadway. The algorithm can be used to compare the anticipated safety performance of two or more geometric alternatives for a proposed highway improvement. The accident prediction algorithm includes a calibration procedure that can be used to adapt the predicted results to the safety conditions encountered by any particular highway agency on rural two-lane highways. The algorithm also includes an Empirical Bayes procedure that can be applied to utilize the safety predictions provided by the algorithm together with actual site-specific accident history data.
Funding Information
Sponsored by Office of Safety Research and Development, Federal Highway Administration,DTFH61-96-C-00055

Citations

APA Citation, 7th Edition (style guide)

Harwood, D. W., & Griffith, M. S. (2000). Prediction of the expected safety performance of rural two-lane highways . U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center.

Chicago / Turabian - Author Date Citation, 17th Edition (style guide)

Harwood, Douglas W. and Michael S. Griffith. 2000. Prediction of the Expected Safety Performance of Rural Two-lane Highways. U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center.

Chicago / Turabian - Humanities (Notes and Bibliography) Citation, 17th Edition (style guide)

Harwood, Douglas W. and Michael S. Griffith. Prediction of the Expected Safety Performance of Rural Two-lane Highways U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center, 2000.

MLA Citation, 9th Edition (style guide)

Harwood, Douglas W.,, and Michael S Griffith. Prediction of the Expected Safety Performance of Rural Two-lane Highways U.S. Department of Transportation, Federal Highway Administration, Research, Development, and Technology, Turner-Fairbank Highway Research Center, 2000.

Note! Citations contain only title, author, edition, publisher, and year published. Citations should be used as a guideline and should be double checked for accuracy. Citation formats are based on standards as of August 2021.