Description: The function of implementation
A. Normally, the traffic light will light up the red and yellow green light according to the normal state, and the traffic police can set the time for the lighting of red, green and yellow light according to the traffic flow.
B, at night, because the road traffic to reduce, according to the traffic rules, four intersections can be flashing yellow light at the same time, in the design for the duration of the normal initialization, after reaching the set time, four yellow lights start flashing at the same time.
C. When manual control, the four intersections can be placed at the green or at the green light.
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