How does the subway system work?

The subway system is simply a lot of trams running in a tunnel. The overview of the ships is assembled by many railroad cars and there are rows of seats as well as pillars and belts to help passengers stand firm when crowded.

Trains running on rails usually have the same size. In New York City, a 1.4 meter wide track is standard rail, allowing trams to connect to other rail systems.

Subway in Korea.

The subway also has lesser-known characteristic systems that are extremely complex . Subway in Copenhagen, Denmark is currently being built on an unmanned basis. In the next phase, the New York metro will be upgraded as well, including a computer system that automatically controls everything from signal lights to programming directions. The ship also uses thermal brakes, capable of reconstructing a portion of lost energy. In addition, the computer system also helps to minimize mistakes that operators or sufferers make, as well as help increase the efficiency of the system.

Typically, self-operated trams also incorporate a monitoring kit like a television that allows passengers to know their current location and help control the train more easily.

A two-way radio system allows passengers to talk to the operator or ask for help when an emergency situation occurs. In addition, the automatic door control sensor can detect passengers near the door of the ship, helping to limit their self-injury when trying to board the train when the door is closed.

The subway system uses automatic traffic signals to increase safety. Smart signals instruct vessels in nearby areas to stop at all times, when to continue and can alert ahead. Infrared sensors mounted on ships help detect ships that can collide and make sure that does not happen.

Some signals are used in a physical way so that the driver can control. In some cases the system also automatically activates emergency braking when the train is out of control or in danger. New York's old subway system allows train drivers to restart green lights while red without breaking traffic laws.

Electrical energy is often used to control subway ventilation, but natural air may still not be enough to meet passengers' needs. New York City's underground tunnel has been installed with a series of state-of-the-art air purifiers that allow 600,000 cubic meters of air to be filtered every minute.