Study the Affecting Delay Factors on Road Construction Projects in Libya

الملخص

The road construction industry significantly contributes to the socio-economic development of a country. However, road construction industries all over the world, including Libya, are facing serious problems related to construction delays, which result in higher costs for the Department of Transportation and contractors as well as cause great inconvenience to the public. The challenges faced by road construction projects in Northwest Libya have resulted in the late delivery of road construction supplies and increased the number of problematic and abandoned projects. Consequently, these delays will result in cost overruns and quality degradation. This study also develops a structural model of road construction delay and determines those groups that greatly contribute to road construction delay through a questionnaire survey. A total of 256 questionnaires were returned for the main study, thereby yielding a 71% response rate. The structural model of road construction delay was developed by using structural equation modelling. This model is deemed fit as the coefficient of determination (R of road construction delay was 0.48 (R2 ≥ 0.26 = substantial . The model shows that all eleven groups are significant with p-value>0.05, thereby suggesting that all fit indices satisfy the proposed value range assumed for the model development. The model also shows that the contractors group and effects of financial activities, specifically ‘time and cost overrun as well as poor quality’, have the highest effects on road construction delay. The findings of this study contributed to understand clearly the cause effect factors of construction delay in Libya.