A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A computer model of the costs of construction and structural maintenance was developed to help plan for minimum costs during the whole life of a pavement. Design and standards for initial construction and for overlays were taken from previous work. Initial construction costs were combined with discounted costs of subsequent overlays to give a total present value of the costs for each design being considered. The model was unable to estimate the costs of traffic delay or of consequential work at the times of overlay construction, though these effects were considered. Actual construction contracts were used to compare the costs of constructing flexible pavements in 2, 3 or 4 stages with that of single-stage construction. The sensitivity of the results to variation in the model parameters was examined. It was found that construction in more than 2 stages is not economical; that single-stage construction is the economical choice for pavements with design-lives of up to 20 years and that for those designed to last between 35 and 40 years two stage - rather than single-stage construction is preferred.
A computer model of the costs of construction and structural maintenance was developed to help plan for minimum costs during the whole life of a pavement. Design and standards for initial construction and for overlays were taken from previous work. Initial construction costs were combined with discounted costs of subsequent overlays to give a total present value of the costs for each design being considered. The model was unable to estimate the costs of traffic delay or of consequential work at the times of overlay construction, though these effects were considered. Actual construction contracts were used to compare the costs of constructing flexible pavements in 2, 3 or 4 stages with that of single-stage construction. The sensitivity of the results to variation in the model parameters was examined. It was found that construction in more than 2 stages is not economical; that single-stage construction is the economical choice for pavements with design-lives of up to 20 years and that for those designed to last between 35 and 40 years two stage - rather than single-stage construction is preferred.
Economics of Staged Construction of Flexible Road Pavements
R. Abell (author)
1983
37 pages
Report
No indication
English
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