Multimodal Transportation Route Optimization for Long and Bulky Cargo Considering Carbon Emissions
Long and bulky cargo has the characteristics of large outline,overweight and high cost and cannot be disassembled during the transportation process.Multimodal transportation is becoming the first choice of long and bulky cargo transportation,the core of which is route decision problem.In this paper,an energy consumption factor is introduced,and calculation formulas of carbon emissions during the transportation and reconstruction and reloading process at the node for long and bulky cargo multimodal transportation are all proposed.Then,taking into consideration the following factors,i.e.,loading outline,gauge,bridge bearing capacity and reloading capacity at the nodes,and road reconstruction,a multimodal transportation route optimization model for long and bulky cargo with carbon emissions is proposed with the objective of minimizing multimodal transportation cost and carbon emissions.In addition,an adaptive genetic algorithm with an elite retention strategy is designed for the multimodal route decision for long and bulky cargo considering carbon emissions.Numerical results show that,compared with the traditional genetic algorithm and the adaptive genetic algorithm,the objective value of the proposed method is 20%higher and its cost and carbon emissions are 12%and 22%lower,respectively.The route plan by the proposed method can consider transportation cost and carbon emissions simultaneously,which can provide support to solve the multimodal route decision problem for long and bulky cargo and also reduce the cost and increase the efficiency in logistics and achieve the"dual-carbon"target.
integrated transportationroute optimizationadaptive elite genetic algorithmlong and bulky cargocarbon emissions
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