Road lighting


Setting up illuminators on the road provides the necessary visibility to vehicles and pedestrians at night.
Road lighting can improve traffic conditions, reduce driver fatigue, and help improve road capacity and ensure traffic safety. In addition, it can beautify the city.
Road lighting is generally divided into urban road lighting and tunnel road lighting.

Quality of road lighting

Brightness level

The average brightness of the road has different brightness requirements according to the road grade. Generally, fast roads and main road asphalt roads require brightness requirements of 2 cd/m2 or more. Secondary trunk roads and auxiliary roads or residential roads are relatively low. For details, please refer to "City Road Lighting Design Standard CJJ45-2006" and "Highway Tunnel Ventilation Lighting Design Specification JTJ026.1-1999"

Average illumination

The average illuminance refers to the average value of all illuminances on the road surface and is the unit of illumination intensity, which is generally expressed by Lx.

Glare

Road lighting should strive to limit the range of uncomfortable glare to a certain extent. Generally expressed by the G value. Under normal circumstances, G ≥ 7 (G = 1 will be unbearable, commonly known as light pollution).

Visual induction

Let the driver immediately recognize the direction of the road at a certain distance, especially the direction of the road he wants to take.

related requirements Road width
2Lane 4Lane >6Lane
Fixture installation height  <8m 10m 12m +
Light pole arrangement spacing 20-25m 30-40m 40m +
Illumination requirement 10-20lx 20-30lx 30lx +
Single pole power <80w 80-150w 200w +
Arrangement Unilateral arrangement One side or both sides Arranged on both sides
Recommended lighting GY500LD GY720LD GY910LD
GY5324LD GY750LD GY1200LD
GY7235LD GY910LD GY7337LD