Cost and time performance of traditional-, direct labour- and management-procured public projects in Ondo State, Nigeria

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Procurement method over time has proven to have significant influence on the successful delivery of construc­tion projects. Making the right decision in the selection of a procurement option to adopt is therefore crucial if a project is to succeed. This study therefore assessed the cost and time performance of selected public building projects procured using traditional, direct labour and management procure­ment options in Ondo State, Nigeria. A pro forma was used to gather cost and time data from government procuring enti­ties in the state. In addition, a structured questionnaire was used to obtain information from construction professionals in these procuring entities, in order to ascertain the factors influencing the choice of procurement options adopted. The cost and time data gathered were analyzed using percent­ages and the paired-samples t-test, while those gathered on the factors influencing the choice of procurement options were analyzed using mean item scores and analysis of var­iance (ANOVA). The results revealed that although there is no significant difference between the initial and final costs of the assessed projects, some measure of cost overrun still exists. In addition, a considerable amount of time overrun was experienced on projects executed using the three differ­ent procurement options. The most significant factors influ­encing the choice of a procurement option are price compe­tition, speed, time certainty and complexity of the project. It is believed that the findings of this study will provide public procuring entities with insight on the cost and time capabil­ity of these procurement methods and aid them in selecting the procurement option that will help in delivering public building projects within the budget and on schedule.

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