The TRACK vehicle transponder provides a means to identify priority vehicles in vehicle preemption,  bus location systems and industrial access control. The TRACK system uses a conventional inductive loop as an in-ground antenna and a specialised receiver to provide an advanced vehicle detection system.
TRACK vehicle transponders are capable of identifying a class of vehicles (public transport, emergency vehicles, fleet vehicles) or unique code vehicle identification for vehicle tracking or bus location systems. Relay contact closures for priority vehicles are readily interfaced with the intersection traffic controllers.