Development of an improved system for contract time determination : phase III.
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2010-09-30
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Edition:Final report; Aug. 2008-Sept. 2010.
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Abstract:This study developed Daily Work Report (DWR) based prediction models to determine reasonable ; production rates of controlling activities of highway projects. The study used available resources such as ; DWR, soil data, AADT and other existing project data from the various divisions of ODOT as primary ; source in estimating productivity. The study describes the effects and variations of production rates of ; highway activities to changes in environmental, geographical and project site conditions. The study also ; includes a relative comparison between a survey of experts’ estimate of production rate and DWR based ; prediction models. An Excel based standalone software program developed for ODOT engineers and ; schedulers to estimate reasonably accurate production rates is also presented in the study. ; The output of this model would allow ODOT engineers and schedulers to improve their accuracy and ; save their time in determining more reliable production rates of major highway construction activities by ; easily adjusting site conditions and project factors. The program will help ODOT to determine ; appropriate contract times of Tier II highway projects which would enhance better planning of resources, ; reduce construction cost, minimize the construction crew’s exposure to traffic, reduce the inconvenience ; to the public, track project progress and future estimating and bidding guidelines. This study will not only ; allow ODOT to be equipped with a streamlined procedure for determining production rates of highway ; construction activities, but will also be a framework and a benchmarking example to other highway ; agencies.
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Main Document Checksum:urn:sha-512:d0c479c50db838a3c973acdf7d0163e705a4aa20e338633297e054c542f39efa215d30ed95ae6330100e6de1c04d36c19479c0b18adb7d9d93e5a4b69593b9df