Road lighting

Road lighting
This road is the artery of the city. The main lighting is street lamp, which is a kind of lighting equipment set on the road to provide necessary visibility for vehicles and pedestrians at night. (Tel: 0667744. com). (Cement guardrail street lights can improve traffic conditions, reduce driver fatigue, help improve road traffic capacity, and ensure traffic safety. Garden lights, landscape lights, and street lights form a three-dimensional lighting pattern, enhance the effect of road decoration, beautify the urban night scene, and also make up for the lack of street lighting.
The street lamp needs reasonable light distribution, its light source has the best life, and can be used for many years without maintenance. With high luminous efficiency and good color rendering, it can start normal operation immediately under ultra-low temperature conditions. At present, incandescent lamps, high-pressure mercury lamps, high-pressure sodium lamps, low-pressure sodium lamps, electrodeless lamps, metal halide lamps and fluorescent lamps are common in road lamps. At present, the main product of street light source is still high-pressure sodium lamp. In recent years, the country has vigorously promoted energy conservation and emission reduction. Compared with traditional light sources, electrodeless lamps are a new type of light sources. Electrodeless lamp can achieve better pavement uniformity.
The light energy shall be reasonably used for street lamps to prevent glare. The light it emits should shine at the desired angle and fall on the road in the specified pattern. The light is evenly distributed, the road surface is bright, and the glare is small. In order to reduce glare, the light distribution can be controlled above the maximum light intensity. According to the form, width, vehicles and pedestrians of the road section, street lamps can be symmetrically arranged on both sides of the road, staggered on both sides, or arranged on one side and hung on the road. Generally, roads with a width exceeding 20 meters and welcome roads can be symmetrically arranged on both sides; If the width of the road is more than 15 meters, staggered arrangement on both sides can be considered; Narrow roads can be set on one side.
At road intersections, corners, ramps, railway crossings, crosswalks and other special locations, street lights are usually required to facilitate the identification of road conditions by drivers and pedestrians. The lighting between the inner and outer sections of the tunnel and the transition section from urban streets to suburban roads needs to consider the adaptability of the driver's eyes to light changes. The power, installation height and vertical spacing of street lamps are important parameters for the design of light distribution. Combining these three factors can achieve satisfactory lighting effect.