چكيده به لاتين
The green construction supply chain is one of the topics that has been discussed recently in supply chain fundamentals, especially in the construction supply chain. Specifically, a project network consisting of several concurrent projects is managed with the aim of not only minimizing delays in all projects but also minimizing the logistical costs including procurement, ordering and transportation, and pollution levels of the vehicles, simultaneously. Although these projects operate independently, they are affected by common suppliers and final quality inspection by the common committee, thus requiring consistent project review. The beginning of any task in the project depends on the availability of needed resources (both renewable and non-renewable) and the constraints of the priority of activities. This study evaluates the construction supply chain using a mathematical model of dual-objective linear programming. For this purpose, the actual environmental impacts of the vehicles in terms of distance, pollution rate, and slope of the road are considered. This paper also discusses the synergy between supplier selection and project time planning in a limited green supply chain. Besides, the issue of coordinating the supplier selection, choosing the type of transportation, and project time planning, which has become a real operational challenge in the construction industry, are also investigated in the paper such that by minimizing the project delays, logistical costs and the propagation of greenhouse gases could also be minimized. Moreover, in order to make the results more realistic, the amount of production capacity and costs are considered in an uncertain environment (fuzzy-probabilistic) in three bad economic, normal economic and good economic conditions.
