Why are there no street lights on the highway?
I believe that many of my partners should have the same experience. At night, the car is driving on the expressway, but only seeing the dark black paint around it. Except for the headlights and reflective signs on the road, there is basically no other light. Insecure. Why are there no street lights on the highway? Is it safer to have street lights?
In fact, in general, highways generally do not install street lights except for important bridge decks and tunnels. Below Xiaoxi will come to analyze and analyze why the highway does not have street lights.
Highway safety factor is high
Dear, do you see pedestrians and non-motorized vehicles coming and going as usual on the streets of the city? No! Because the highway does not allow pedestrians and non-motorized vehicles, motorcycles, tractors, and tricycles are not allowed. It is not possible to have an 80-yard car in 15 seconds. The design of the expressway is required whether it is a curve or a slope. The most important thing is that the expressway is a fully enclosed road. That is to say, there is no complicated road condition like a pedestrian or a motorcycle. Therefore, it is not necessary to set up a street lamp. Set up on necessary road sections, such as tunnels and death bends.
The installation of street lights is not for the safety and convenience of the vehicle (because the car has headlights), but for the safety and convenience of non-motor vehicles and pedestrians. The service functions of expressways and urban roads are different. Urban roads not only have vehicles, but also non-motor vehicles and pedestrians, so there are street lights; highways are roads connecting cities and cities, cities and villages, and there are few non-machines. Motor cars and pedestrians. Therefore, there are no street lights in general highways.
In addition, the highway pavement is very flat, no obvious pits, the road conditions are kept better, and the safety factor is higher.
Road reflective signs meet the demand
Is it safer and more convenient for the driver to install street lights on the highway? The answer is no.
Street lighting is discontinuous and uneven. For high-speed vehicle drivers, this dullness can cause visual errors (illusions) and is very dangerous. In addition, it will quickly cause eye fatigue. Moreover, the street lighting is poorly illuminated, and it is scattered light, which can make the driver in the long-distance driving dazzle, causing driving safety hazards.
There is no street light. What should the driver do on the highway at night?
When the outside lighting is insufficient, the vehicle headlights can provide drivers with safer lighting. Since there is no opposite car, you can drive the high beam at night (this driving friend must have a good experience). This is why some drivers like to turn on the headlights (high beam) even when driving on brightly lit city streets (of course, this is a bad driving habit).
The vehicle is driving at night, and the perfect pavement signs and reflective signs fully meet the needs. At night, under the strong illumination of the car's headlights, the reflective film on the traffic sign will directionalally reflect the light, illuminate the road surface, and can clearly reflect various traffic signs into the driver's eyes, enough to complete the direction guiding function.
Cost is not low, management trouble
The total length of expressways in China is more than 100,000 kilometers. The installation of street lamps in all sections must be a small expense. Moreover, the traffic flow of the expressway line is too random, and it is bound to cause huge energy waste for the installation of street lights across the entire line for a small number of vehicles. In addition, the highway passes through the province and the power supply and management of each section is also a difficult problem.
In summary, installing street lights on highways is not necessarily scientific and does not save energy. Although the highway safety factor is high, parents still need to be careful at night.
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