Some safety common sense questions about taking the subway?

Red light: opening and closing doors.

Don't go in or out when the light is on or the bell rings. People often rush into the subway at the last second and get caught. Procrastination is the second, and insecurity is the first! There was high voltage electricity under the subway, and many people rushed over and didn't squeeze in. As a result, the people behind did not know the situation and had no time to retreat. The person in front couldn't retreat, and he fell off the track and died. . . So take the subway or listen to the command, stay away from it, and would rather wait a few times, start early and get on the road safely instead of rushing! Also, when getting on the bus, be careful not to lean against the door when opening the door.