Analysis of temporary traffic control cost items in transportation construction bidding process

Agdas, Duzgun & Ellis, Jr., Ralph D. (2010) Analysis of temporary traffic control cost items in transportation construction bidding process. In Construction Research Congress 2010 : Innovation for Reshaping Construction Practice, American Society of Civil Engineers, Banff, Alberta, Canada, pp. 1103-1114.

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Abstract

Temporary Traffic Control Plans (TCP’s), which provide construction phasing to maintain traffic during construction operations, are integral component of highway construction project design. Using the initial design, designers develop estimated quantities for the required TCP devices that become the basis for bids submitted by highway contractors. However, actual as-built quantities are often significantly different from the engineer’s original estimate. The total cost of TCP phasing on highway construction projects amounts to 6–10% of the total construction cost. Variations between engineer estimated quantities and final quantities contribute to reduced cost control, increased chances of cost related litigations, and bid rankings and selection. Statistical analyses of over 2000 highway construction projects were performed to determine the sources of variation, which later were used as the basis of development for an automated-hybrid prediction model that uses multiple regressions and heuristic rules to provide accurate TCP quantities and costs. The predictive accuracy of the model developed was demonstrated through several case studies.

Impact and interest:

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ID Code: 69816
Item Type: Conference Paper
Refereed: Yes
DOI: 10.1061/41109(373)111
ISBN: 9780784411094
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > CIVIL ENGINEERING (090500) > Construction Engineering (090502)
Divisions: Current > Schools > School of Civil Engineering & Built Environment
Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Deposited On: 17 Apr 2014 05:05
Last Modified: 11 Jun 2014 23:20

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