期刊
NEURAL COMPUTING & APPLICATIONS
卷 35, 期 12, 页码 9253-9265出版社
SPRINGER LONDON LTD
DOI: 10.1007/s00521-022-08180-7
关键词
Green capacitated vehicle routing problem; Possibilistic mixed integer programming; Fuzzy set; Fuzzy AHP
The green capacitated vehicle routing problem (GCVRP) has become a significant research topic due to the increasing global climate issues. This study presents an interactive fuzzy approach to solve GCVRP with imprecise travel time and supplier demands. The proposed model considers two objective functions: minimum fuel consumption and maximum green score. The model is applied to an automotive company in Turkey and provides a suggestion for vehicle routing.
The green capacitated vehicle routing problem (GCVRP) has attracted the attention of many researchers recently, due to the increasing global climate issues. This study presents an interactive fuzzy approach for solving green capacitated vehicle routing problem with imprecise travel time for each vehicle and supplier demands. Triangular fuzzy numbers are proposed for modeling uncertainty, and optimization problem is considered as a bi-objective possibilistic mixed-integer programming (PMIP) model. Possibilistic mixed-integer programming and a fuzzy analytical hierarchical process approach (FAHP) are combined to optimize two objective functions: (1) minimum total fuel consumption and (2) maximum total green score. In the first objective function, the fuel consumption ratio model is used. In this model, the fuel consumption is considered as function of travel time and total load of the vehicle. In the second objective function, suppliers are evaluated in terms of environmental factors with the fuzzy AHP method. The normalized weights are assigned to suppliers as a green score. A conciliating solution is obtained by solving this bi-objective mixed integer programming model. The proposed model and solution approach is applied for an automotive company in Turkey. According to the results obtained, a suggestion for a vehicle routing is proposed.
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