A train is like a big car that moves on special tracks. A train driver is the person who helps the train go where it needs to go. Just like how you follow your favorite way to the park, the train driver follows a special route on the tracks.
Before the train starts moving, the train driver looks at important lights. These lights are like traffic signals for cars, but for trains, we call them 'semaphores.' The semaphore tells the train driver when to go and when to stop, so everyone is safe!
So, remember, a train needs a driver to help it move, and they pay attention to the lights to know what to do. It’s like playing a fun game of following rules!