Investigation and analysis of urban road lighting in Southwest China

City road lighting is the embodiment of city image and its overall economic strength, practical function, landscaping, decoration, ornament, foil and other functions in one, and has gradually become an important sign of economic prosperity and reflect the culture of the city. Road lighting should not only provide lighting for pedestrians, it is more important to drivers (including motor vehicles and non motor vehicles) to provide good visual conditions, allowing the driver to see the road, obstacles, opposite to the car, the surrounding environment, to improve traffic efficiency, reduce traffic accidents at night.

With the development of economy in our country, people are more and more active in leisure, shopping and walking in the evening. Therefore, it is very important to provide illumination for people in the night, so that they can see the surrounding environment, identify the location and ensure the safety.

City road lighting is the embodiment of city image and its overall economic strength, practical function, landscaping, decoration, ornament, foil and other functions in one, and has gradually become an important sign of economic prosperity and reflect the culture of the city.

Road lighting should not only provide lighting for pedestrians, it is more important to drivers (including motor vehicles and non motor vehicles) to provide good visual conditions, allowing the driver to see the road, obstacles, opposite to the car, the surrounding environment, to improve traffic efficiency, reduce traffic accidents at night, to prevent crime and beautification the effect of city environment.

According to the International Commission on illumination (CIE) report, a good night lighting can make the city road traffic accident rate is reduced by more than 30%, the highway traffic accident rate was 30% lower than that of the rural road traffic accident rate is reduced by more than 45%.

A road lighting standard, lighting design standard CIE Road (115-1995) according to different road grade recommended standard for lighting design, lighting Engineering Society of North America (IESNA) for the city's various road lighting recommended standards, our country road design standard CJJ45-2006 "city road lighting design standards" will be in accordance with the Expressway / city road lighting main roads, secondary roads and branch is divided into three levels, and the provisions of the standard value of road lighting levels.

At the same time, scholars in our country have done a lot of research on different functions of road lighting. Among them, Zhang Shengpeng, Weng Ji of road lighting, Chen Yonggan of the residential area road lighting, Huang Ke of the night road lighting, He Zhengjun on the road lighting commercial pedestrian street.

In addition, Yang Chunyu, Lin Zhengang and other road lighting energy saving issues were studied.

At present, China's urban road lighting design in accordance with the relevant national norms, but for the relatively backward economic development of small and medium cities, the road lighting is not ideal.

Through field investigation and measurement of road lighting in Chongqing County of Wuxi City, summarizes the existing problems and analyzes the reasons, and put forward reasonable proposals and make it more scientific and road lighting.

Author: Liang Shuying Yang Chunyu source: Tianjin lighting

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