Just like how a car needs a driver to steer and control it, a train also needs a person who makes sure it runs smoothly. This person is called a train driver.
The train driver is responsible for guiding the train along its tracks and ensuring it stays on the correct route. They need to be very careful and watchful because they have to follow different signals that help them know when to speed up, slow down, or stop.
One type of signal is called a semaphore. Think of it like a traffic light, but for trains! The semaphore has different positions that can indicate various instructions to the driver, like whether it's safe to continue or if they need to stop.
In summary, just like cars need drivers to go where they need to go safely, trains rely on their drivers to follow signals and stay on their designated routes!