The subway system is simply many trains running in a single subway line. The train overview is made up of many carriages and inside there are rows of seats as well as pillars and straps to help passengers stand up when crowded.
Trains running on rails are usually of the same size. In New York City, the 1.4 meter wide track is the standard track, allowing trains to connect to other rail systems.
Subway in Korea.
The subway also has a little-known feature system that is extremely complex locomotives . The subway in Copenhagen, Denmark is currently being built on a driverless basis. The next phase of New York’s subway will be similarly upgraded, including a computer system that automatically controls everything from signal lights to programming directions. The train also uses a thermal brake, which is able to regenerate some of the lost energy. In addition, the computer system also helps to reduce the mistakes that the operator often makes as well as helps to increase the operating efficiency of the system.
Usually, self-driving trains also include a television-like monitor that allows passengers to know their current location and makes it easier to control the train.
The two-way radio system allows passengers to talk to the operator or ask for help in case of an emergency. In addition, automatic door control sensors can detect passengers near the train’s door, helping to limit their self-injury when trying to board the train when the door is closed.
The subway system uses automatic traffic lights to increase safety. Smart signals guide ships in the nearby area when to stop, when to continue, and can warn of danger ahead. Infrared sensors mounted on ships help detect possible collisions and make sure that doesn’t happen.
Some signals are physically used so that the driver can take control. In some cases, the system also automatically activates the emergency brake when the train loses control or is in danger. New York’s old subway system allowed train drivers to restart the green light when it was red without breaking traffic laws.
Electric power is often used to control ventilation systems for subway trains, but natural air may not be enough to meet passenger demand. The New York City underground has been installed with a series of modern air purifiers, allowing to filter 600,000 cubic meters of air per minute.