Guaranteed green lights for first aid

Despite flashing blue lights and sirens, there is often no way through heavy traffic in towns and cities for emergency services. STGPS FreeWay can help when every minute counts.

Our tried-and-tested control system enables priority green-switching for emergency vehicles as they approach the junction. Fire brigade, police or ambulance vehicles equipped with STGPS FreeWay are detected in good time and the traffic signal systems are switched to green thanks to the preemptive control.

STGPS FreeWay Garantiert grüne Welle für die Erste Hilfe

The intelligent system

The intelligent system determines the precise location of the vehicle via GPS coordinates and transmits the data to the traffic signal systems. The locating system is activated simply by switching on the special signal on the emergency vehicle. A tunnel-proof GPS link is installed in the vehicle for this purpose, whereby a supporting locating system ensures the reliable de­termination of the vehicle location even in extreme conditions. All communication between the vehicle and the traffic signal system is fully automatic – without any additional intervention from the driver. Thus, In an emergency, emergency vehicles can cross the junction safely, without losing time and regardless of the route.


  • Special signal status detection
  • Minimum reaction time
  • Pinpoint signals
  • Automated signalling procedure