PROJECT COST MANAGEMENT PROCESS AND PERFORMANCE OF ROAD PROJECTS IN NAIROBI CITY COUNTY, KENYA

Kennedy Otieno Obuo, Dr. Samson Paul Nyang’au

Abstract


The general objective of the study was to determine the effect of project cost management processes on performance of road projects in Kenya. The specific objectives were to examine effect of; cost scheduling and control costs on performance of road projects in Kenya. The study was guided theory of transactive planning and theory of constraints. The study used a descriptive research design. The study target population was 51 road projects in Nairobi City County, Kenya. The unit of           observation was 51 project managers, 51 project contractors, and 51 roads engineers. Sample size was 153 road project professionals since the study adopted census. This study used structured questionnaires to collect data. The pilot study was carried out among 10% of the sample hence 15 road project professionals. This study used content and construct validity. To ensure the reliability of the questionnaires, the researcher used Cronbach's Alpha Coefficient. Questionnaires were coded and keyed into SPSS Version 28. Findings were tabulated. The pilot test results demonstrated the robustness and reliability of the research instruments. With Cronbach's alpha values for all constructs exceeding the acceptable threshold of 0.7, the instruments showed high internal consistency. Additionally, expert reviews confirmed content validity, ensuring the questionnaire's accuracy and relevance. Factor loadings analysis further established construct validity, with all variables meeting or surpassing the recommended AVE threshold of 0.5. These preliminary findings indicate that the study's measurement tools are both reliable and valid for the intended research. The findings revealed that cost scheduling (β = 0.294, p = 0.000), and cost control (β = 0.301, p = 0.000) significantly influence project performance, with cost control having the highest impact. The results indicate that effective management of these processes enhances project success by ensuring timely completion, cost efficiency, and stakeholder satisfaction. The study concludes that comprehensive cost management practices are critical for the successful implementation of road projects. Cost control, in particular, plays a pivotal role in maintaining financial discipline and preventing budget overruns. The study recommends that project managers adopt advanced tools and             techniques for cost scheduling and strengthen cost control measures through regular monitoring and reporting. Further research should explore the impact of external factors on cost management       and the use of technology in enhancing these practices across different types of infrastructural projects.

Key Words: Project Cost Management Processes, Cost Scheduling, Control Costs, Performance of Road Projects


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References


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