Presents the results of a research study carried out to examine the main factors that affect the quality of a construction project. © 2020 American Society of Civil Engineers.Īuthor keywords: Fuzzy set theory Project success factors Project productivity Project planning Contract management ContractĪdministration performance Project sustainability. Nevertheless, the model might be restudied for other project delivery methods as well. This study is limited to design-bid-build contracts.
The questionnaire results indicated that change control, financial, and claims and disputes resolution management were the top three groups affecting the CCA performance. The model, which was then implemented in two construction projects in Qatar, illustrated that the proposed model reasonably captured the CCA performance and thereby a low level of implementing contractual risk management was concluded. The first part represented the group assessment, while the second part assessed the overall performance. A two-part weighted fuzzy logic model was then developed to measure the CCA performance. The collected data were analyzed for normality, reliability, and intergroup differences. An online questionnaire was used to rate the importance of each factor and group, and 223 responses were collected. The proposed model contains 93 key factors and 11 project management process groups related to contract administration performance. To this end, this paper covers the development of a new multidimensional fuzzy model to quantify the performance of construction contract administration (CCA) processes at the project level. The success of a project depends on the importance of investigating the impact of contract administration implementation parameters such as response time, approval process, resolving issues, coordination, and documentation. The main advantages of fuzzy approaches over the other multicriteria decision-making (MCDM) methods such as analytic hierarchy process (AHP) and analytic network process (ANP) are as follows: (1) MCDM methods provide an analytical analysis (ranking), while fuzzy approaches can establish the relation between several factors and their relevant groups (2) the number of data required for fuzzy approaches is much smaller than that of AHP and ANP for the same variables (the computational requirement is very high even for a small problem) (3) AHP consistency index will measure inconsistency of a pairwise comparison while the fuzzy approaches might use other statistical methods to examine the reliability and group differences and (4) fuzzy methods take the vagueness of the views into consideration during the item rating, yielding more reliable results. 2019), evaluating the performance of construction trades foremen (Poveda and Fayek 2009), and capturing the dynamic characteristics of construction projects (Seresht and Fayek 2015). As a result, the application of fuzzy approaches within construction management appeared in many studies for scheduling delay analysis (Ozdemir 2010), as well as for assessing the cost overrun risk of power plant projects (Islam et al. The past few decades demonstrated a significant amount of implementation of fuzzy approaches in construction and management research (Chan et al. This study is believed to make theoretical and practical contributions in that it examines the delay analysis topic in all aspects such as prominent institutions, countries, authors and sources, synthesizes the data and highlights possible research domains, gaps and trends concerning the delay analysis topic in construction industry. By evaluating the related research, two main research areas were detected in this field, namely improving the delay analysis methods and resolving the disputes before they occur. Hence, 168 documents related to delay analyses from 1982 to 11 February 2021 were detected through the Scopus Database and the Web of Science Database, and scientometric analyses were conducted via VOSviewer software. In this context, not only does this study aim to detect the most significant authors, sources, organizations and countries contributing to the improvement of delay domain in the construction industry concerning delay analyses worldwide but also to provide the researchers with extensive insights concerning the prominent research themes, trends and gaps in the literature. Following fruitful contributions made by the researchers, it is believed to be extremely important to summarize the existing studies in terms of being a road map for future studies and practitioners. Numerous studies have been conducted by researchers on the delay analysis topic, which is one of the primary areas of scientific study due to the effects of delays on time and cost in construction projects.
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