passenger car
Vehicle that rolls along subway tracks and transports passengers.
heating grille 
Grating through which warm air is forced to heat the car interior.
suspension 
Assembly that dissipates the vibrations occurring as the wheels roll along the tracks.
inflated carrying tire 
Nitrogen-filled tire that supports and conveys the car.
inflated guiding tire 
Tire mounted at right angles to the carrying tire; it rolls against the guiding bar to guide the truck.
advertising sign 
Poster on a space rented by a business that promotes products or services.
side door 
Sliding door that opens onto the station platforms for passengers to enter and exit.
handrail 
Floor-to-ceiling pole in the middle of the aisle for passengers to hold onto while the train is in motion.
side handrail 
Handle on the wall next to the door for passengers to hold onto while the train is in motion.
subway map 
Map that shows the entire subway system; each subway line is illustrated in a different color.
emergency brake 
Device that stops the train; it is available to users in case of emergency.