Model of Wagons’ Placing-In and Taking-Out Problem in a Railway Station and Its Heuristic Algorithm

Table 2

Tasks of the shunting locomotive.

Serial number	Operation sites	Operation contents
1	𝑣1	Placing-in two wagons
2	𝑣2	Taking-out two empty wagons and transferring them to site 𝑣4
3	𝑣3	Taking-out three wagons
4	𝑣4	Receiving two empty wagons from site 𝑣2
5	𝑣5	Placing-in one wagon
6	𝑣6	Taking-out two wagons
7	𝑣7	Taking-out three empty wagons and transferring them to site 𝑣10
8	𝑣8	Placing-in two wagons
9	𝑣9	Taking-out three wagons
10	𝑣10	Receiving three empty wagons from site 𝑣7