Visibility measurement of traffic and road signs and reflective materials

This measurement checks how well traffic signs, road signs, and reflective materials can be seen by drivers, especially in low-light or nighttime conditions. Inspectors use tools to measure how much light these materials reflect back to drivers, ensuring they are bright and clear enough for safe navigation. This visibility check is important for road safety, as it helps confirm that signs and markings are easily noticeable and effective for guiding drivers.