AN APPRAISAL OF COST EFFECTIVENESS OF ASPHALT AND REINFORCED CONCRETE ALTERNATIVE PAVEMENTS ROAD CONSTRUCTION IN ABAKALIKI, EBONYI STATE NIGERIA
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Abstract
Transport infrastructure in any economy act like a baseline to ensure continuous smooth flow of movability of public and goods as input and output from all economic sectors. The cost of road construction consists of design expenses, material extraction, construction equipment, maintenance and rehabilitation strategies, contractors’ profit and overheads, and operations over the entire service life. Lack of appraisal of cost-effectiveness of road pavements construction in Abakaliki, Ebonyi State has been a problem. This research work appraised the cost-effectiveness of concrete and asphaltic alternative pavements of road construction in Abakaliki, Ebonyi State. The objective of the study is to establish the cost of constructing one kilometer and appraisal of cost effectiveness of concrete and asphalt pavements alternative road construction in Abakaliki, Ebonyi state using a priced bill of quantities which was prepared for each of the pavements. The prepared bill of quantities of fifty -two kilometer (52 km) road by Consultant Quantity Surveyor was the population while one kilometer was the sample size. An economic analysis process known as Life-Cycle Cost Analysis and SSPS computer software were used to evaluate the cost-effectiveness of the estimated costs of concrete and asphalt pavements. The research findings show that the average rate of return for the Concrete road project is 89% whilst that for the asphalt road project is 30%, The result further indicates that the magnitude of impact asphalt has on the cost-effectiveness of road construction in Abakaliki, Ebonyi state is greater than the rate of impact concrete has on the cost-effectiveness of road construction in Abakaliki, Ebonyi state as their coefficient of impact is 8.532305 and 2.281109 respectively. The R2 value which measures the rate the independent variables (concrete and asphalt) explains the cost-effectiveness of road construction in Abakaliki, Ebonyi state is 44% which is relatively low. Concrete pavement is cheaper than asphalt pavement in terms of present worth. Asphalt pavement appear to increase effectiveness but reduce cost-effectiveness. In addition, alternatively using asphalt overlays and preventive treatments showed a high cost-effectiveness and is recommended.
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