The main purpose of this study is to identify critical factors affecting the quality of infrastructure projects and to develop a new index to quantify projects’ quality.
Through the literature review and interviews with experts, 77 factors were identified and classified under four main groups. Then, a questionnaire survey was performed to identify the most important factors. Afterward, the analytic hierarchy process (AHP) was used to determine the relative weights of the primary factors that were chosen. The performance of the developed model is demonstrated using a real-life case study located in the new administrative capital, Egypt.
Cost of quality group was found to have the highest priority vector (PV) of 0.38. Moreover, top management, project and activity ranked in the second, third and fourth places with a corresponding PV of 0.24, 0.21 and 0.17.
Managers and contractors can benefit from the proposed model to enhance the overall quality performance of infrastructure projects.
