Exploring the Key Factors Influencing Design and Build Construction Success in Tripoli, Libya

الملخص

The reconstruction of Libya after the civil war has placed greater importance on the construction industry, but research has not provided specific information about the context that might influence the success of a construction project using Design and Build (D&B) methods. This study aims to address this research gap by exploring the key factors affecting the time required to complete D&B construction projects in Tripoli, Libya. It examines the influence of four independent variables on project performance: (1) procurement systems, (2) currency costing, (3) logistics delivery, and (4) causes of delays. A structured questionnaire was developed for a quantitative approach, yielding 396 valid responses from members of the construction community. The researchers employed multiple linear regression and t-tests to determine which variable relationships were significant. The study showed that procurement systems (β=0.165, p=0.001), currency costing (β=0.249, p=0.000), and logistics delivery (β=0.143, p=0.003) all produced significant positive effects on project completion times. The general causes of delay showed no statistically significant effect (β = -0.030, p = 0.525). The research results demonstrate that operational and financial management processes have a stronger effect on project completion than the traditional causes of delay identified by researchers in post-conflict construction environments. The research will increase knowledge about Critical Success Factors (CSFs) which particularly apply to fragile and transitional economies through its identification of logistics delivery as an essential strategic factor that exists in under-explored research areas. The study will provide value by delivering evidence-based recommendations that benefit both policymakers and construction industry stakeholders. The evidence-based recommendations indicate that organizations should implement e-procurement systems and develop better methods for currency risk management and supply chain coordination. The developments will enable projects to become more durable which will lead to faster completion of infrastructure projects while supporting the eco-friendly reconstruction of Libya along with other nations recovering from conflict.