Operators are able to monitor numerous weather and road conditions to support traffic management in the project area, which is along a 31-mile section of I-77 near the intersection of I-81 in Southwest Virginia. This area, generally known as Fancy Gap, is prone to weather conditions such as heavy fog, which makes driving hazardous.

Automatic Warnings

Using input from visibility sensors, the central computer determines if the visibility in the coverage area is adequate for safe travel. When visibility drops below a predetermined level, the system notifies authorized personnel of the situation, and recommends a message to be placed on VMS signs in the affected area.

Operators are also able to monitor weather and traffic conditions in real-time by viewing video from cameras mounted on the weather stations.