Optimizing the Long-Term Operating Plan of Railway Marshalling Station for Capacity Utilization Analysis

Table 1

Events’ definition and occurrence prerequisite.

Number	Event name	Definition	Occurrence prerequisite
1	Inbound train entering	Inbound trains enter arrival yard	① Inbound train arrives at station; ② Arrival yard has free tracks
2	Disassembling start	Disassembling engine pushes inbound train up the hump for disassembling	① Disassembling engine is free.; ② There exist trains in the arrival yard with technical inspections completed; ③ Marshalling yard has enough tracks to store disassembled railcars
3	Disassembling end	All railcars of current disassembled train have run on assigned marshalling tracks	① Disassembling train is completed
4	Assembling start	Assembling engine starts pulling railcars from marshalling track to assemble outbound train	① Assembling engine is free; ② Marshalling yard has enough railcars which can be assembled into the same outbound train; ③ There exist free tracks in the departure yard
5	Assembling end	Assembling engine stops pulling railcars and an outbound train is formed	① Assembling train is completed
6	Outbound train departure	Outbound train departs from departure yard	① Departure yard has outbound trains having technical inspections finished; ② Minimum interdeparture interval is satisfied