Pedestrians begged form lights, also known as self-service lights and overpasses, is a kind of pedestrians through the press of a button to change the control signal, let the green to red light motor vehicles, the pedestrian red light green light, so that pedestrians have a limit of time crossing the street.

Pedestrians self-service is the greatest strength of traffic lights for pedestrians crossing the street across the street is safer, more smooth traffic. Traffic patrol, said at the pedestrian crossing, there is a button on signal light pole, pedestrians can put forward to need to crossing the street, press the button. Then in the process of signal control, open the green light for pedestrian, ensure pedestrians crossing the street.

Traffic signal lamp manufacturers, said lights will be on the pedestrian crossing pedestrians begged form significant peak, flat peak road, such as schools, hospitals, nursing homes and other device for the primary traffic road. Now, traffic patrol detachment programming has been completed, enter the tender of the public, will soon be put into use.