Allocating Freight Empty Cars in Railway Networks with Dynamic Demands

Table 2

Parameters used in formulation.

Parameters	Definition
	The set of links;
	The set of nodes;
	The index of nodes;
	The index of link from node i to node j;
	The total number of links;
	The total number of nodes;
	The different stages, ;
	The unit transportation cost on link in stage ;
	Origin station which supplies empty cars, ;
	The supply amount of empty cars in station ;
	Destination station which requires empty trains, ;
	The total demand of empty cars in station ;
	The link capacity on link ;
	The turnover capacity at station ;
	The unit storage cost for stage ;
	The demand of empty cars at station for stage .