Optimization of Classification Track Assignment Considering Block Sequence at Train Marshaling Yard

Table 1

Parameters and variables.

Sets:
	Set of railcars in a stage plan (index )
	Set of railcars of inbound train
	Set of the start and end time for disassembling and assembling (index )
	Set of classification tracks (index )
	Set of inbound trains (index )
	Set of outbound trains (index )
Parameters:
	Index of the outbound train which railcar belongs to
	Disassembling time of railcar ,
	Assembling time of railcar ,
	Destination of railcar
	Capacity of track ,which is measured by track length
	Length of railcar
	Binary parameter:1 if railcar belongs to outbound train , otherwise 0
	The maximum number of tracks outbound train is able to be assigned to
Decision Variables:
	Binary variable:1 if outbound train is assigned to track , otherwise 0
	Binary variable:1 if railcar is assigned to track at time , otherwise 0
	Binary variable:1 if track is dirty track, otherwise 0