Have you ever been to a train station or subway station and seen a big screen where it showed you what train was coming and when it was going to arrive? This is called a platform display!
It’s like a big TV screen that helps people know which train will come and when they should get ready to hop on it. The important information that people need to know is displayed on the platform display, like the train number, the time it will arrive, and which direction it's going.
This helps people to know which platform they should wait on, and when they can expect their train to arrive. It's really important because trains run on a schedule, and people need to know when to be at the station so they don't miss their train.
So, in summary, a platform display is like a big TV screen that tells people which train is coming and when it will arrive, so they can catch their ride on time.