Affiliations: College of Industrial Engineering, South Tehran Branch, Islamic Azad University, Entezari Aly, Oskoui st, Choobi Brg, Tehran, Iran
Correspondence:
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Corresponding author. Ashkan Hafezalkotob, College of Industrial Engineering, South Tehran Branch, Islamic Azad University, Entezari Aly, Oskoui st, Choobi Brg, Tehran, Iran. Tel.: +98 912 778 5681; E-mail: A_hafez@azad.ac.ir.
Abstract: Sustainability is one of the most significant problems in today’s world and the concept of sustainable development is being an important objective in construction projects. Since the large projects have enormous and different activities that should be scheduled by considering resource constraint and precedence relationship between them, the resource-constrained project scheduling problem (RCPSP) is a NP-hard problem. In this study, fuzzy project scheduling model is presented to solve RCPSP under uncertainty in availability of the resources and activities duration simultaneously. Subcontractors have incentive to share their resources in the form of coalition in order to reduce activities time and cost. In this research, cooperative game methods are introduced for fair allocating utility of the project, as well as, present supper-additivity, stability and satisfaction level of each coalition. Finally, sustainability concept is analyzed in RCPSP and cooperation of subcontractors in a coalition form, whereas in the previous researches these topics addressed separately or generally in project scheduling to minimize the makespan and maximize the profit of project. The results of the proposed model indicate that the subcontractors can obtain more profit and the balance between sustainability indicators in project management arises by collaboration.
