FACTORS INFLUENCING THE QUALITY OF ROAD CONSTRUCTION IN JOS METROPOLIS
I.M. Oyemogum1; Adeagbo D.O.2 ; M.S. Buba3 &E.A. Rugu4
1, 2&3Department of Building, University of Jos
4Department of Quantity Surveying, University of Jos
Email: egooye@yahoo.co.uk, malsonsam@gmail.com, ruguezekiel@yahoo.com
ABSTRACT
The state of Nigeria roads is deplorable despite the huge amount of resources allocated to build roads annually. This research studied what influences the quality of road construction in Plateaus State, Nigeria with a view to help stem the high incidences of road failures. Primary information used in this research were sourced from a survey of one hundred (105) project professionals, each possessing a minimum of 3 years of experience. Structured questionnaires based on the Likert-5-Point Scale of Responses were used to capture their opinions on the factors that influence quality of road construction, while secondary information were sourced from a review of literature. Results were analyzed using appropriate statistical tools based on the Statistical Package for Social Sciences (version 16.0). The five most critical factors identified in this research are asphalt mix, thickness of base, quality of materials on site, thickness of wearing course, skill and experience of site staff. The measures to reduce failure of roads identified in the research are use of quality materials, use of experienced staff, adherence to design drawings and specification among others. The research concludes that the use of quality materials and adequate site supervision accordance with the specification will lead to achieving quality performance of roads. The study recommended contractors competence to be checked before awarding contracts. The study also recommended that designs should be made for each road rather than specifying thicknesses for various layers.
