Cause and Effects of Delay on Road Construction Projects in Addis Ababa

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Addis Ababa University


Delays of a construction project can be defined as the late completion of works as compared to the planned schedule or contract schedule. Delays on the construction projects are the most common and frequent problem of the industry. Thus, the objective of this study was to identify the major causes of delays and the frequency of occurrence of effects of delays. This study was carried out based on literature review, questionnaire survey and document review of projects. A stratified sampling technique was used to select sample projects. Analysis techniques like relative importance index, Spearman correlation and ‘T-test’ were used to analyze the data collected so as to rank the factors causing delays, identify frequency of effects of delay and to show the degree of agreement between the different parties (clients, consultants and contractors).The results of the analysis show that the main cause for delay of road construction projects in the Addis are consultants, external or environmental related factors and clients. The spearman correlation test results show that there is no as such a strong agreement between any two parties of the industry towards identifying the cause and of delay on the projects. And the most frequent occurring types of effect of delay were found to be time and cost overrun. This result have been found the same for all groups of respondents, which confirms that all parties have the same view towards the effects of delay. Finally the study has made a recommendation to the players of the industry to work hand in hand to achieve a common goal which is completing projects on time and budget.



Road Construction Projects