Contractor prequalification assessment in the construction industry is an essential part of the project development process because contractors play a pivotal role in the extension of projects and resources. The main objective of the present study is comprised prequalification assessment for classifying contractors by applied the EDAS method for recognizing the contractors' potential before competitive tendering and obtaining bids. First, an inclusive, detailed list of 56 sub-factors under 5 main factors for project prequalification was compiled following a thorough literature review, and review of contractors by experts of Bandar Imam Khomeini municipality who already have done projects with contractors. Second, used the CRITIC method for obtained the weighing and importance of each factor. Third, classified the contractors by applied the EDAS system for recognizing the contractors' potential before competitive tendering and obtaining bids. Finally, the prequalification assessment process was developed to obtaining the rank of each contractor and help the stakeholders to select the right contractors. The effectiveness of the present approach was tested by applying it to a case study of the prequalification assessment of four construction companies' in Bandar Imam Khomeini municipality, Khuzestan, Iran. It is worth mentioning that the prequalification assessment by the proposed approach is approved by the project stakeholders and is consistent with their expectations. It can be concluded that based on relevant ranking and weighing of companies that procedure can be extended to the same studies in this regard, and the contribution of the present study is to propose a support system for prequalification and identification of contractors' ability, before assigning projects to companies for success in projects.
The crisis in construction industry are deemed a negative event in the security, economic, political, materials, or natural affairs, especially when they occur abruptly, with little or no warning; and it has always caused damage, therefore crisis management is necessary to order not turn crisis into a disaster. The present study focuses on exploring the impact of the crisis in construction projects by offering a review of the literature to identify the various associated crisis and made a case study of ‟Khuzestan province (Iran). First, through a questionnaire survey with construction experts as respondents, the initial list of 222 sub-factors were confined to a list of 174 essential crisis sub factors and were grouped under 20 main crisis factors. Second, the shortlisted 174 essential crisis sub factors conduct a questionnaire-based survey with top experts from ‟Khuzestan province (Iran) construction organization as respondents to obtain the Importance of each sub factors based on the rating of its impact the second list and using CRITIC method to weighting crisis factors. Third, ranking the influential sub crisis factors from the all sub factor list and provide a single list without considering the initial list crisis through WASPAS model. Finally, The result of the crisis effects rating, seen that the most crisis effects rating in the Khuzestan construction industry is the economic crisis, followed by the market and real estate, and then insurance, maintenance, after that respectively, logistics, and materials crises. Identify the crisis is the main part of crisis management; the obtained results help construction crisis managers and all stakeholders to achieve sustainable development in construction projects. Identifying and prioritizing construction-specific crises allow sustainable crisis managers to concentrate to be successful projects.
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