How do you know that you are not going in the opposite direction by subway?

1. When the platform is on both sides of the subway, there will be signs on the elevators and stairs below. Go to a certain direction, and those who are not familiar with the route can consult the staff;

2. When you enter the waiting area of the subway station and look at the top of the track, there will be an LCD screen: which direction the train will arrive (judge the direction);

3. Look at the direction arrow. The name of the next stop is in dark black font, and the passing place is in gray font.

There will be an indicator light in the subway car.