00642393

Component

http://onlinepubs.trb.org...trr/1993/1410/1410-005.pdf

https://scholar.google.co...atne&publication_year=1993

Deficiencies in resistance to skidding in sections of highways exist and sometimes contribute to elevated accident rates. A more efficient process for priority ranking projects for restorative treatment of these deficiencies given limited funding is presented. Projects for treatment of these deficiencies using the benefit-cost ratio are discussed. Surface treatments are recommended and the associated project costs are identified. Benefits are identified through expected accident reductions. The costs associated with accidents are computed and multiplied by an accident reduction factor (ARF) to find the expected benefits of the countermeasure. Two separate methods are used in calculating the benefits. The first method involves using a standard ARF that is applied to all projects regardless of functional class and traffic volume. The second method utilizes new expected ARFs specific to each project. These new factors are based on the assumption that the countermeasure will reduce accidents to the average accident rate of each project's particular functional class. Individual projects are then selected from the prioritized lists using a dynamic programming technique.

This paper appears in Transportation Research Record No. 1410, Pavement Monitoring and Evaluation. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved

01403259

English

p. 32-40

1993

Transportation Research Record

0309055571

References (2) ; Tables (14)

Benefit cost analysis; Countermeasures; Crash rates; Dynamic programming; Ratings; Safety; Skid resistance; Strategic planning; Traffic safety

Restoration

Highways; Maintenance and Preservation; Pavements; Safety and Human Factors; I23: Properties of Road Surfaces; I61: Equipment and Maintenance Methods

TRIS, TRB

Feb 18 1994 12:00AM

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