Okay! So, let’s imagine that a train driver is like a bus driver, but they drive a big train instead! The train driver has to follow special paths called routes that are made just for trains. These routes help the trains go from one place to another safely. It’s like having a magic road that only trains can use!
Now, just like cars have traffic lights, trains have their own kind of traffic light called a semaphore. A semaphore is a special signal that tells the train driver what to do. It can be a light that shines red, yellow, or green.
- Red means 'STOP!' The train must stop at once.
- Green means 'GO!' The train can keep moving.
- Yellow means 'CAUTION!' The train should get ready to stop soon.
So, when the train driver sees these signals, they know if they can keep going or if they need to stop. This way, trains can travel safely and not bump into each other. Isn’t that cool?