How to deal with emergencies by subway?

There are some emergency equipment and facilities in subway cars and stations, which can play an important role in an emergency. For the location of these devices, as well as the specific use methods and purposes, each car of the train has two passenger emergency alarms. When there is a fire, a passenger faints, a train breaks down, and the safety of passengers is threatened. During the ride, passengers can send an emergency alarm to the driver and contact the driver directly. A red button is marked on the cover of the passenger emergency alarm. In case of emergency, passengers can open the cover, press the red button, and make voice calls directly with the driver.