Tram and bus stops are marked by red and white signs. To board an approaching vehicle, you must signal the driver by holding out your hand. Some bus stops have solar-powered signs to keep passengers informed about the precise arrival time of the next bus. You may enter or exit a tram, city bus or metro car by any door. Board the tram or bus by the front door if you wish to buy a ticket.
Passengers are responsible for opening doors either to enter or exit.
To open the door from the outside of a tram, press the dividing vertical strip on the door. To open the door of a bus from the outside, push the large green button, located at about shoulder-height beside the door. To exit a tram or bus, push the black or green button by the door to signal that you would like to get off at the next scheduled stop. Metro doors do not open automatically, but must be opened manually once the train has come to a complete stop. Use the hand latch in the center of the parting doors.