Analyzing Delays of Road Construction Projects in Cambodia: Causes and Effects

Abstract

This research analyzes the delay factors in road construction projects in Cambodia and their effects on project time, cost, and quality. A questionnaire survey was conducted with engineers from contractor and consultant firms in assessing the frequency and severity of delays so that an importance index for delay factors could be computed. In general, there was no significant difference between contractors and consultants in assessing the delay factors. The top-10 list was dominated by factors related to the contractor and the project. However, two external factors, rain and flood, were the first two factors on the list, which also had a high impact on the three project objectives. The remaining factors on the list were land acquisition, award of project to lowest bidder, equipment breakdowns, poor site arrangement, management and supervision, unexpected ground condition and terrain, low quality of the contractor human resources, late progress payments, and low productivity of labor. Recommendations to manage the delay factors were presented. Significant relationships between the delay factors and the three project objectives also were observed and discussed.

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