A new framework for project time–cost–environmental trade-off problem with hybrid Fermatean fuzzy–grey information

Pouyan Mahdavi-Roshan, Seyed Meysam Mousavi () and Vahid Mohagheghi
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Pouyan Mahdavi-Roshan: Shahed University
Seyed Meysam Mousavi: Shahed University
Vahid Mohagheghi: Shahed University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2025, vol. 27, issue 10, No 81, 25323-25352

Abstract: Abstract One of the commitments held out by the project managers is to make sure that the project will end on time, within the stated funding, and with the highest standard. Environmental pollution is an impact of implementing construction projects. Therefore, environmental impact has recently been taken into account to judge project success. In this paper, a new framework is offered that concentrates on project scheduling from the standpoint of duration, expenditure, and environmental trade-off by viewing quality loss expense. To be more precise, the methodology has four steps. First grey critical path (GCP) analysis is carried out. In the second step, activities' environmental impacts on each execution mode under Fermatean fuzzy sets (FFSs) uncertainty are calculated utilizing a multi-criteria decision-making (MCDM) approach. Third, a new mathematical model under grey uncertainty is developed with crashing and overlapping strategies to minimize project duration, expense, quality loss expense, and environmental influences. At last, the fourth step is presented to categorize the activities into three groups based on their criticality level. A case study in the construction field is implemented to validate the methodology. Also, through sensitivity analysis, the methodology is confirmed.

Keywords: Project time–cost–environmental trade-off; Quality loss cost; Fermatean fuzzy sets; Grey theory; Crashing; Overlapping (search for similar items in EconPapers)
Date: 2025
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DOI: 10.1007/s10668-024-04675-6

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