Why are the traffic lights different in length?

If the red light is too short, it will be difficult for vehicles to pass. This phenomenon is very common, especially in big cities, so it is very important to say that the red light lasts longer than the green light.

We all know that the red light stops, the green light is on and the yellow light is slow. This is a very important traffic rule. At the same time, this is also a traffic rule that every driver must abide by, whether it is pedestrians, bicycles, electric cars or cars.

Only in this way can we ensure the safety of every citizen and pass through every intersection safely.

Extended data:

In fact, it is not difficult to find that at many intersections, the red light takes longer than the green light. In fact, it is to give some vehicles some transition time. Because there are many cars in some cities like this, which is very common in big cities.

If the red light lasts only 30 seconds, it will be difficult for all vehicles to pass. If the red light lasts longer, the number of vehicles will increase.

But also to avoid traffic accidents. Because if the time of the red light is short, then most of the action time of the green light can be open to traffic in all directions, and the time interval is not open, then traffic accidents are prone to occur.

The yellow light must also have some transition time. For example, when the east-west direction of the intersection is red, the north-south direction is green. When the time is up, the green light will turn directly to the red light, but the red light always flashes several times before it turns green.

This is also the opportunity for drivers to start. This is also for security reasons. Because it will be decided according to the traffic and road conditions at the intersection. So at some intersections, in fact, the time of red light and green light is different.