In view of the coordination limitations of remote coal transportation,the advantages of railway full coverage location network and the irreplaceable transportation capacity in coal transportation,the optimization of coal transportation is considered under the integration of supply,transportation,storage and distribution ca-pabilities of coal supply chain under the background of transforming railway nodes and increasing demand side storage and distribution centers.the coal supply chain is taken,which presents the two-level inventory struc-ture of storage and distribution center and consumption place,as the object,and a three-dimensional space-time network of time-space and transportation state is constructed to depict the entire coal transportation process,to minimize the total cost composed of transportation cost,time cost,carbon emission cost and inven-tory cost during coal transportation.An optimization model of the coal dynamic transportation based on multi-mode coordination considering multi-node inventory is established and solved by Gurobi software.The validity of the model is verified by an example of coal transport in southern inner mongolia.The research shows that scheme can effectively reduce the transportation and inventory costs and create derivative value and achieve a win-win situation between supply and demand compared with the traditional coal transfer.
coal transportationsupply chaintransportation planspace-time state network
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