DOI: 10.11648/j.eas.20261104.12 ISSN: 2575-1468

Selection of Project Delivery Method for Libyan Residential Building Construction by Means of Expert Opinions and Owner Preferences

Abdulmojeb Almhroog
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This study addresses the challenges facing the rapidly growing Libyan construction industry, which requires sophisticated decision-making approaches to support the selection of optimal project solutions. One of the most critical decisions in construction projects is the selection of the Project Delivery Method (PDM), which significantly influences project performance and implementation efficiency. In Libya, the Design–Bid–Build (DBB) method remains the dominant delivery approach despite persistent issues related to quality, time performance, and coordination. The present study aims to identify the most suitable PDM for residential building construction in Libya by introducing and evaluating alternative delivery methods within the Libyan construction context. The research integrates owner preferences and expert opinions using the Analytical Hierarchy Process (AHP) as a multi-criteria decision-making tool. Four delivery methods—Design–Bid–Build (DBB), Design–Build (DB), Construction Management at Risk (CM@R), and Integrated Project Delivery (IPD)—were evaluated based on four key criteria: scope/quality, time, cost, and risk. Data were collected through interviews with residential project owners and construction contract experts to obtain the information required for selecting the most appropriate delivery method for residential building projects. All pairwise comparison matrices achieved acceptable consistency ratios, confirming the reliability of the evaluation process. The findings indicate that CM@R is the most suitable project delivery method for residential construction projects in Libya, followed by DB, IPD, and DBB. The results reveal a significant gap between the currently dominant practice and the most performance-oriented delivery approach. Furthermore, the study provides a structured decision-support framework that can assist stakeholders and decision makers in improving project delivery method selection within the Libyan construction industry.

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