Development of a User Cost Estimation Procedure for Work Zones.

Abstract

Work zones associated with highway construction projects create localized bottlenecks where the average traffic speed is reduced and queues are formed, thus causing increased costs as a result of the additional time and fuel needed to traverse the work zone. These user costs can be estimated and applied as a form of incentive to the contractor to complete the work sooner, thus allowing traffic to return to the free-flow speed. Methods to determine user costs are explored through a literature search, questionnaire survey, and interviews with employees of the Utah Department of Transportation (UDOT). Based on the research and interviews, a program named DUCK was developed to estimate the costs attributed to the reduction of speed through a work zone. A plan using DUCK and another program, DelayE, is recommended to UDOT, along with a description of these computer programs and how they estimate user costs.

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