Rapid transit is a type of transportation that moves a lot of people from one place to another very quickly. It's like a super-fast train or bus that travels on a special route, usually with its own exclusive lanes and stops.
You know how when you ride the school bus, it stops at a lot of different places along the way to pick up and drop off kids? Well, rapid transit works kind of like that, but it only stops at certain stations that are usually farther apart. This helps it move faster because it doesn't have to stop as much.
Rapid transit is also designed to carry a lot of people at once, so it usually has lots of seats and standing room, and it can run more often than regular buses or trains. This means that lots of people can travel at the same time without having to wait a long time for the next one to come.
So, to sum it up, rapid transit is a really fast, efficient way to get around that helps lots of people travel quickly and comfortably.