A Timetable Optimization Model for Urban Rail Transit with Express/Local Mode

Table 2

Passenger route selections under different O-D.

O-D	Minor station	Major station
Minor station	(1) Local train	(2) Local train
		(3) Local train ⟶ express train
Major station	(4) Local train	(6) Local train
		(7) Local train ⟶ express train
	(5) Express train ⟶ local train	(8) Upcoming express train
		(9) Wait for the next express train