Delay Determination of Subway Construction Project by Fuzzy MCDM (Case Study, Karaj Subway)

Document Type : Research Article


Civil Engineering Department, Maybod Branch, Islamic Azad University, Yazd, Iran


The most important indicator of a project’s success is not only it should be cost-effective, but also it should be ended on the predicted time. In some projects like constructing subways, dams and so on, delay in construction causes big problems in financial, social or political levels in the countries. To reduce or eliminate delays in construction projects, time optimization should be planned. The main goal of this project is to study the time delay in construction of Karaj subway. In this regard the reasons are recognized and evaluated. In the first step, by reviewing project documents and designing a questionnaire which was completed by a set of experts, factors of delay in constructing Karaj subway were recognized. In the next step, by using multi-criteria decision-making methods, these factors were phased out, weighted and prioritized. At the end, by using Fuzzy logic and to estimate the delay of projects, a method was provided that according to it the project manager can use experts’ ideas and recognizes how much this project has progress and do necessary actions to have a more rapid exploitation.


Main Subjects

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