What is the purpose of reflective materials on road signs?

Reflective materials on road signs serve a crucial function by increasing visibility at night and during low-light conditions. When light, such as headlights from vehicles, hits these reflective surfaces, the light bounces back towards the source. This enhances the sign’s brightness and clarity, making it much easier for drivers to recognize and respond to important information, such as warnings, directions, and regulations.

Visibility at night is essential for road safety, as it helps prevent accidents by ensuring that drivers can see signs well enough to make informed decisions. Reflective materials are specifically designed to maximize this effect, significantly improving safety on the roads after dark or in poor weather conditions.