The sounds of trains are one of the important and well-known elements in the urban and rural environment. These sounds are usually caused by the movement of trains on rails, braking systems and train engines. Here are some of the sounds of trains:

1. The sound of the wheels on the rails: When the train is moving, its wheels move on the rails and this action creates a special sound. This sound acts as an alarm for people near the rail line.

2. The sound of the braking system: When the train brakes, the braking system exerts pressure on the wheels, which creates a sound similar to broken glass. This sound indicates that the train slows down and stops.

3. The sound of engines: Trains use powerful engines to move and these engines create a sound similar to the sound of a big engine. This sound indicates the activity and movement of the train.

4. The sound of the switches: When the train is at the intersection of the tracks, the switches change the direction of the train and this action creates a special sound. This sound indicates the change of train route.

5. Sound of boarding and disembarking of passengers: When the train stops at the stations, the passengers get into the train and this action causes the noise of the bags and other belongings of the passengers. Also, when the train departs from the station, the sound of passengers disembarking is also created.

These sounds are recognized as a part of the train travel experience and some people remember them. Also, at times, these sounds may be annoying for some people.