Identification and classification of construction delay causes in the wastewater treatment projects
by Hodasadat Seyedrezaei; Ehsan Saghatforoush; Hamidreza Athari Nikooravan
International Journal of Advanced Operations Management (IJAOM), Vol. 15, No. 2, 2023

Abstract: Delay in completion deteriorates the national capital. In the last decade, few studies have analysed the delay causes in construction of wastewater treatment plants (WWTO). This study identifies and classifies construction delay causes in Iranian WWTP. First, using the SLR method, construction delay causes are collected and after conducting descriptive analysis, eight main delay causes are identified. Kappa index is used to measure reliability of proposed model. Then, using the survey method through conducting semi-structured interviews and TDA of the content of interviews and assessing content validity and components of interviews with indices CVR and CVI, six main themes of management, manpower and logistic, methodology, engineering and execution, errors and rework, and external factors are classified as the most significant construction delay causes. These themes can be used in risk management to prevent delays, optimise use of financial resources, manage effectively, make better decisions and prevent waste of national capital.

Online publication date: Fri, 14-Jul-2023

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