Maintenance skid correction program in Utah
TC Conti, JC McMinimee, P Seneviratne - Transportation research …, 1993 - safetylit.org
TC Conti, JC McMinimee, P Seneviratne
Transportation research record, 1993•safetylit.orgDeficiencies 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 …
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 …
Abstract
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.
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