In winter, cold temperatures, gusty winds, and snow showers sweep across many parts of the country. Dealing with road problems in snowy conditions is not easy, and safety issues are real. Lu Chuang Lighting explains the lighting issues of roads in cold weather.

Improving driver and pedestrian safety

Modern lighting technology is improving the safety of drivers and pedestrians on winter roads.

Traditional high-pressure sodium lighting produces a low color rendering index (CRI<25) and distorts the driving environment, while solid-state broad-spectrum lighting provides a higher color rendering index (CRI>70) and better vision.

Solid-state broad-spectrum lighting uses products with higher color temperature (CCT is typically 3,000K to 6,000K) and color rendering index (CRI>70); compared with high-pressure sodium light sources, solid-state broad-spectrum lighting improves road visibility and object detection. Light sources with low color rendering index may "distort" the environment.

Compared to traditional HID lamp technology, such as high pressure sodium lamps with a 2,000K CCT, vehicle and pedestrian detection can be improved with broad spectrum illumination at a 4,000K color temperature.

LEDs and Colder Climates:

LEDs are ideal for roadway lighting in areas where snow is common.

LED systems designed with appropriate levels and light curtain brightness can provide drivers with excellent object detection and contrast in snowy conditions. "The reflective properties of light scattered off snow-covered roads can increase ambient brightness and illuminate the road surface.

A common question is whether LEDs are ideal for traffic and street lighting since they cannot melt snow.

Roadway luminaires are typically horizontally oriented optical systems that resist ice and snow, and interference is rarely an issue if the lighting fixtures are designed properly.

A similar issue exists for lighting parking lots and other outdoor spaces. Parking lots and roads are typically cleared of snow, but the ambient light levels increase due to the reflective nature of white surfaces. LEDs can be adjusted to these brightness levels, providing a safer environment for pedestrians and drivers.

LEDs are an excellent choice for improving visibility and keeping roads safe during the harshest months of the year. When severe winter weather arrives, powerful lighting design and appropriate color temperature create the best conditions for the road surface.