Does the train have a steering wheel?

The train has no steering wheel and no gears. The speed of the train is controlled by the handle, which controls the speed of the diesel engine. The diesel engine drives the generator to generate electricity, and the generator drives the motor on the wheel to drive the wheel. The principles of trains and cars are much worse. Because the car is very light, you can use a mechanical gearbox. This train weighs thousands of tons. No metal can bear such a large torque if the speed is changed mechanically. So the train has no gearbox. Train direction is track control, and track is dispatching control. The driver only needs to control the speed and start and stop of the train. Dispatch, drive as fast as you can, and stop when you should.