light is that there are two possibilities if the left turn green light does not come on. One is that you can turn left, and the other is that you cannot turn left. Whether you can turn left depends on the main light going straight. This increases the judgment time, distracts energy, and makes people hesitate. Drivers hesitate to cross intersections and cannot concentrate on observing other vehicles and pedestrians at the intersection, which increases the incidence of accidents. The green light for right turns never lights up, and it does not comply with the traffic law's requirements that signal lights should be clear and unambiguous. In fact, the green light of the old version of the right turn light is bright, which conforms to the principle of clear instructions and overcomes the bad habit of "right turns are not restricted by red lights". Giving a clear light signal to vehicles in all directions is the basic function of traffic lights. Using dark signals to express information is a functional flaw, and this flaw is stupid. In fact, some cities have already used nine-square grid lights, but they are expressed by red and green lights in all directions. No one had any objections or hesitation on the spot. It can be seen that the black light design is the culprit. An expert on the Internet said that everyone has been led astray by some media. The new version of the light does not have a black light, that is, the green light for going straight and the green light for turning left cannot be on at the same time. In fact, that is what everyone calls the black light. This expert has a brain problem and is a sophistry. It’s okay to look at the picture below. Look at the picture below. It is a Jiugong lantern in a city (Woyang County, Anhui Province). It has been installed for two years. However, because the traffic control department of this city cleverly retained the countdown and clearly indicated the use of lights in all directions, no one felt it. question. Worth promoting.
In addition, the traffic lights change randomly according to the traffic volume. When I suddenly thought about it, it was good. But it's actually a bad idea because the randomness of the lights increases the risk of rear-end collisions and crashes.