In order to improve the transit power of the urban area, many areas have recently used the pedestrian pleading-light signals. Traffic police are investigating the traffic flow and the traffic flow of the roads, and the traffic lights are added on the conditional route. When pedestrians cross the road, just press the button and wait for a while, and the passer-by will light the green light.

Pedestrians to cross the street, as long as the fingers of road lamp light button, pedestrians solicitation light green light is lit, the motor vehicle becomes a red light when it is green. At this moment, pedestrians have 20 seconds to cross the street. At different times press the button, switch to the pedestrian begging signal light green time is different, can be divided into these four sights:

Scene 1:

When the traffic lights pass for more than 40 seconds, the pedestrian presses the button, and the six-second transition signal switches to the traffic light.

Scene two:

When the traffic lights were no more than 40 seconds, the pedestrian pressed the button to wait for the vehicle's 40 seconds to pass and the traffic lights were turned on. For example, pedestrians press the button for 20 seconds when the traffic lights are lit, and wait for another 20 seconds to switch to the pedestrian for the traffic light.

Scene 3:

Pedestrians solicitation signal when the light is green, someone to trigger button, green light is only 20 seconds, then switch back to the motor vehicle green, 40 seconds and then switch back to the pedestrian solicitation light green.

Scene four:

If there is no pedestrian trigger button, the traffic light will always be green and the pedestrian pleading-signal lights will continue.