We adopt the trip decomposition method to transfer the trip to arc demand so as to propose a vehicle flow formulation for the RRVRP. In the computational experiments, we use 40 randomly-generated smal
The white paper on China’s Arctic Policy, which proposed the joint construction of the Polar Silk Road (PSR), was officially published in January 2018. As a short and economically feasible sea route,
Die Erhebung von Eisenbahndaten zum Güterverkehr basiert auf der Verordnung (EU) 2018/643 (Neufassung) des Europäischen Parlaments und des Rates vom 18. April 2018 über Eisenbahnverkehrsstatistiken. D