In many large cities, public transportation is a way of life. Millions of people rely on buses and trains to get to work, school, and other appointments. But have you ever noticed that sometimes, the doors on buses and trains open and close by themselves, even when there doesn't seem to be anyone around? It's actually a safety feature designed to protect passengers. If someone is leaning against the door, or if the door is obstructed in some way, the sensors will cause the door to open so that it doesn't close on someone and hurt them. So, next time you're waiting for the bus or the train, please stand clear of the doors!
In many public transportation systems, like subways and buses, there are signs that say "Please stand clear of the doors." This is because the doors open and close automatically, and if someone is in the way, they could be injured. So, it's important to stand back from the doors when you're waiting for a train or bus.
In conclusion, please stand clear of the doors so that services can continue running smoothly. Thank you for your cooperation.