رضا رحمتي

This study was conducted to identify an‎d analyze the key factors affecting supply chain management (SCM) in construction projects in Tehran. Iran’s construction industry faces numerous challenges, including fluctuations in material prices, shortages of skilled labor, lack of coordination among stakeholders, an‎d logistical constraints, all of which contribute to project delays an‎d cost overruns. The primary objective of this research was to propose practical solutions to improve supply chain performance an‎d mitigate these challenges. The research methodology was based on a mixed-methods approach (quantitative–qualitative) using a convergent design. Quantitative data were collected through a researcher-developed questionnaire administered to 18 respondents (11 contractors, 4 project managers, an‎d 3 clients). Qualitative data were obtained through semi-structured interviews with a senior project manager an‎d two members of the project management team. Four main domains were examined: stakeholder coordination, human resource management, financial resource management, an‎d logistics management. Data analysis was conducted using descriptive statistics, ANOVA, Pearson correlation tests, an‎d thematic coding. The key findings indicated that financial resource management was the most influential factor affecting project performance, accounting for an average impact of 54% on project delays an‎d 64% on cost overruns. This dominance was primarily attributed to severe fluctuations in material prices (Likert score: 4.88), inefficiencies in cost estimation (4.31), an‎d Iran’s unstable economic conditions. Human resource management ranked second, with a 21% impact on delays, mainly due to rising wages (4.10), shortages of skilled labor (4.44), an‎d high labor turnover rates (4.50). Stakeholder coordination (14%) an‎d logistics management (10%) were identified as less influential factors. Qualitative interviews revealed deeper underlying issues such as administrative bureaucracy, challenges related to foreign labor employment, an‎d economic uncertainties. The study concludes that supply chain challenges in Iranian construction projects are systemic in nature an‎d require integrated solutions. Future research may focus on international comparative studies, the impact of emerging technologies, an‎d longitudinal analyses. Effective implementation of the proposed recommendations could significantly reduce project delays an‎d cost overruns, thereby enhancing the overall performance an‎d quality of Iran’s construction industry.

مديريت زنجيره تامين , پروژه هاي ساختماني , هماهنگي ذي نفعان

Supply Chain Management , Construction Projects , Stakeholder Coordination

Reza Rahmati

Dr. Parviz Ghoddousi