The countdown time for solar traffic lights

When we drive through the intersection, there are generally solar traffic lights. Sometimes people who do not know the traffic law often have a doubt when they see the countdown time. That is, should we walk when we meet the yellow light?

In fact, there is a clear explanation in the regulations on traffic yellow light, that is to say, the yellow light represents the warning function, and there is a provision that “when the yellow light is on, the vehicle that has jumped the stop line can continue to pass”. But it is not clear whether vehicles that do not jump the stop line when the yellow light comes on will be able to pass without incident. Because when the yellow light of the solar traffic light turns on, if the driver cannot slow down and park the car at a steady and uniform speed in front of the stop line through the brake, he can pass through the interpenetration without parking. Therefore, if the green light will turn to yellow when the vehicle is moving on the entrance of the crossing, the driver needs to decide whether to park in front of the stop line or continue to pass the crossing without parking according to the size of the interval between the vehicle and the stop line and the speed of the vehicle.

There may be no way for the driver to know the remaining green time without a countdown. Therefore, at the entrance of the interlude, there may be a situation where the vehicle continues at normal speed even though it is close to the stop line. So by the time the signal changes from green to yellow some of the vehicles will not be able to park stably before the stop line. So in this case a yellow light is set up to push this section of traffic into the interlude.

Actually has set up a yellow light but also for the vehicle in the process of driving through the intersection of time is not sure, sometimes is a green light after a few seconds after the existence of if there is no yellow light, then it may cause some obstacles to the traffic and yellow light can very good to make vehicles such as after a green light to have a buffer time pass, Therefore, the countdown time design of solar traffic lights is actually more reasonable.


Post time: Apr-13-2022