High-Speed Train Stop-Schedule Optimization Based on Passenger Travel Convenience

Table 1

The minimum service frequencies required by train stations.

Station level	I	IV	IV	II	IV	I	III	IV	II	IV	II	III	IV	III	I
Minimum frequency of train service (times)	40	8	8	30	8	40	20	8	30	8	30	20	8	20	40