Fog remains one of the most unpredictable and dangerous hazards for road users, with sudden drops in visibility causing confusion, harsh braking and serious collisions. Coeval’s Fog Warning System has been designed to meet this challenge directly, providing a fully autonomous, real-time solution that keeps drivers informed and protected the moment conditions deteriorate.
The video demonstration of the Fog Warning System below shows how each part works together to deliver a seamless safety response on roads where fog is known to be frequent. When visibility drops, driver safety can be seriously compromised, and it is this exact risk Coeval’s technology is built to mitigate.
At the heart of the system is a visibility sensor that continuously monitors conditions on the ground. As soon as fog is detected, the control unit analyses the data within just a few seconds and automatically determines the recommended driving speed for the conditions. This information is then sent directly to the cloud, enabling instant activation of all connected components along the fog-affected route.
Bright LED traffic signs and LED flashers are triggered immediately. The LED signs display appropriate speed limits based on visibility, ranging from 20 to 80 kilometres per hour, alternating with a clear “FOG AHEAD” message. The accompanying flashers help drivers stay oriented, clearly identifying the direction and length of the critical road section that requires caution.
The system’s hardware includes Coeval’s robust signage and associated control units, all built to remain visible and effective even when dense fog obscures normal road signs. Every component communicates wirelessly through a 4G connection to the system’s central platform, making the solution fully integrated and remotely manageable. The video also shows the cloud interface used for system monitoring, data export and command control.
The Fog Warning System is energy independent, powered primarily by solar panels, with the ability to draw from public lighting infrastructure when necessary. This ensures reliability even in remote or energy-limited locations. In the event of a connection loss, the system follows an intelligent fallback routine. The speed display switches off to avoid misleading drivers, while the LED flashers continue to operate, blinking steadily every two seconds to maintain essential visual guidance until communication is restored.
Coeval’s Fog Warning System demonstrates how modern road safety can combine environmental sensing, automated decision making and connected signage to create a safer driving environment. By reacting instantly to reduced visibility and delivering highly visible warnings tailored to real-time conditions, the system significantly reduces risk on fog-prone routes.
This technology reflects Coeval’s broader commitment to advising, informing and protecting road users through intelligent infrastructure. With fog presenting such severe and sudden hazard potential, Coeval’s system provides a proactive solution that keeps drivers alert, slows vehicles safely and helps prevent serious incidents before they occur.
