Factors affecting project performance: a case study of Jimma city cobble stone construction projects

Abstract

The project success depends on its performance. Project performance could affected with various factors. The main objective of this study was to assess factor affecting the performance of cobble stone road construction projects in Jimma Town. For this study mixed research approach would be used. For this study, all of the target population was considered; the sample size was 102. Both the primary and secondary data collected were entered in to data base. The primary data which refers to filed data was obtained through the. use of questionnaire and secondary data through the review of various relevant literatures and document review. Furthermore the researcher was organized and present finding in terms of tables and charts. Descriptive and explanatory method was used. To identify main factors affecting project performance of Jimma Town cobble stone project, the inferential statistics such as linear Regression model was applied. Furthermore, to rank the most important factors affecting the performance of Jimma Town cobblestone projects the relative importance index was used. Environmental related factors leading influential for the project performance with 0.834 mean index score is suggested as the most preferred factor as it interfere the perceived performance on the cobble road construction projects. This is closely followed by material related factors having 0.826, and then client related factors having the Relative Importance Indexvalue of 0.819. Furthermore project related Factors having the RII of 0.746 is ranked 4th and contractor related factors having RII of 0.721 is ranked 5th with high to moderate importance. This implies that environmental related factors are the most essential factor for a project to be executed appropriately and performed well. This might be explained by unfavorable soil type around the projects and waste accumulation. Material related factors also the next leading interfering factors since the existence of insufficient cobble stone production and lack availability of source material around the town. Relying on the results of the study and the summary of findings, the study concludes that there is a significantly positive relationship between client related factors, consultant related factors, environmental related factors and supervisor related factors with project performance cobble stone road construction in Jimma Town. Hence, the projects are expected to enhance their performance with intervening the identified factors which interference