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- W1535519263 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 of other state highway agencies, and interviews with employees of the Utah Department of Transportation (UDOT). The literature search found reports on how other states have employed user costs and how they derived the time values used in their methods. Proper planning and preparation is essential to ensure that the methods and values used are appropriate and justifiable. The questionnaire survey indicated that the most popular methods for user cost estimation would be simple and easy to use. The value of time should be estimated using the average wage of the state. Lost time or delay should be calculated using the extra time associated with reduced vehicle speeds through the work zone. Engineer’s discretion should be allowed in adjusting determined user cost value. The results of the interviews indicated that the ease of use would be a major quality desired by UDOT employees for a user cost plan. Similar to other state agencies, delay costs should be based on the speed reduction through the work zone. Vehicle operating costs should be based on the cost of fuel. Other factors to use for calculations should include the AADT, length of the work zone, number of closed lanes, the day and time of the closure, the percentage of automobiles and trucks, and the functional class of the facility. Any computer programs should be intuitive and easy to use. Four computer programs were evaluated: MicroBENCOST, QuickZone, DelayE, and DUCK. Each has strengths and weaknesses, but DelayE and DUCK encompass the ideals desired by UDOT employees for determining user costs. DUCK and DelayE are recommended for use by UDOT because the combination of the two provides UDOT with the desired attributes mentioned previously. The Microsoft Excel based DUCK program was created especially for UDOT in this study using the objectives UDOT employees provided. It is recommended that the benefits of QuickZone be restudied now that its second version became available in May 2005. It is also recommended to develop a shell program to control both DUCK and DelayE for easier use." @default.
- W1535519263 created "2016-06-24" @default.
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- W1535519263 date "2005-06-01" @default.
- W1535519263 modified "2023-09-27" @default.
- W1535519263 title "Development of a User Cost Estimation Procedure for Work Zones." @default.
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