Why is the domestic high speed speed limit 120，Not speed limit 130、140? Many people often run at high speeds and have never thought about，But why is it defined at 120 speed。Let's discuss the reasons for the high -speed speed limit 120 in China today。Then compare the reasons why Germany's high -speed unlimited seabet loginor speed limit value is higher than domestic，Many car owners dare not speed up after watching it。

Some people say that speed limit 120 is for safety and want，In fact, I can't stand this view，Why? Suppose for safety，Actually, it is no problem at 110 speed at 110? And for public transport，The high -limit value of the unified national high -speed national high -speed，It must be a decision made by deep consideration。The following 3 analysis description why the domestic speed limit 120 is 120。

1. speed limit 120 speed, take care of safety and consider efficiency

Domestic high -speed pavement laying is basically asphalt road，Professional test，Reference to "relative" security extreme value，The coefficient of the road surface and tire friction determines that the car is more reasonable at 120。Another，Take into account the driving efficiency and utilization rate of highways，It is recommended that the high vehicle speed limit is 120 is also very reasonable driving efficiency。

2. The speed of the speed is too fast, the human vision becomes narrow, and the brake distance becomes longer

Why is the high speed limit of 120，Not 130、140? The reason is that the car speed is too fast，People’s vision will become narrower as the speed faster，Limited vision，Decrease driving safety。Another，The reaction time of the driver is seabet myabout 2S when the time for stepping on the brake pedal，The speed of 120 is dangerous to brake，66.7 m，If the speed is 140，Run 77.8 meters，Risk coefficient increases a order of order。

3. The speed of the speed exceeds 120, the stability of the car control decreases

Domestic automobile product control is not as good as Europe，Especially German standards higher，German highway is more spacious，German driving license pass rate is extremely low。So，Caused that car safety is higher than domestic，Highway is spacious than domestic，German driver driving technology is better than domestic。Integrity，Domestic high -speed speed limit 120，Some unlimited speeds in Germany are also dependent on the facts of various countries。So say，German car chassis stability is good，High -speed driving control feel is also a big advantage，and the overall industrial level of the domestic automobile is relatively backward，Therefore, the high speed limit is 120 speed.。Do you agree with this statement?