Visibility Detectors - Key to Precision Traffic Management on Highways

The visibility detector can quickly transmit accurate fog information to the command center by monitoring the changes in visibility on expressways in real time, providing crucial basis for the decision-making of the traffic management department and completely changing the extensive management mode in the past which relied on manual visual inspection and simply closing roads in low visibility weather. In actual installation, they are continuously installed at specific intervals (such as 5 kilometers or 10 kilometers, determined according to experimental data) in accordance with scientific planning to ensure that visibility data can be collected timely and accurately, laying the foundation for subsequent information release and traffic control.

When connected with the radar speedometer screen, the visibility information obtained by the visibility detector can be combined with vehicle speed data to achieve more intelligent traffic management. Through the solar-powered LED variable message signs, the visibility conditions of the road sections ahead are presented to drivers in real time and precisely. This linkage mechanism can issue warning information at the first time. For example, when the visibility decreases in foggy days, it can promptly remind drivers to slow down and keep a safe distance between vehicles, greatly improving the pertinence and accuracy of expressway traffic management in foggy days.