An enhanced vision and navigation system for guiding aircraft rescue and fire-fighting vehicles at night and during certain low-visibility conditions. The DEVS is comprised of three systems: (1) Navigation, which displays the ARFF vehicle's position on a moving map display mounted in the cab; (2) Tracking, which provides two-way digital communication between the ARFF vehicle and the Emergency Command Center; (3) Vision, which allows the ARFF vehicle operator to see in 0/0 visibility conditions.
