Emergency Vehicle Preemption
Clearing the way for emergency responders
Preemption reduces response times for emergency vehicles
Solutions
Visibility matters
Preemption gives life-saving seconds at each intersection
Low emergency response time is a top priority for communities, but increasing traffic is making this difficult to achieve.
Commsignia's V2X-based preemption solution is a robust and secure system that gives fire trucks and ambulances the green light and clears intersections of other vehicles before they arrive.
This preventive intervention helps avoid dangerous maneuvers and ensures that traffic is only disrupted as necessary.
V2X also acts as a safety beacon in traffic, allowing blue light vehicles to directly send alerts to all vehicles nearby.
Enhanced Safety
Fewer accidents for emergency vehicles, and pedestrian protection.
No line of sight required
V2X operates flexibly in urban environments and is weatherproof.
Low entry barrier
V2X beacons are easy to install on the vehicle.
Cost-efficient deployment
Commsignia's V2X infrastructure can be used in multiple use cases.
Cross-vendor interoperability
Integrates with Traffic Light Controllers in the US
Advanced security
Designed in a way to prevent unauthorized usage.
Starter kit to provide preemption services
V2X Roadside Unit
Commsignia's RSU integrates with the Traffic Light Controller and communicates with the emergency vehicles.
V2X Onboard Unit
The OBU is installed in the emergency vehicles and integrated to the light bar, so preemption is automatically requested when necessary.
Integration services
Commsignia experts support the entire integration process.
Sensor integration
For pedestrian and cyclist safety, RSUs can be integrated with smart cameras, lidars, radars and other sensors. Emergency vehicle drivers get alerts based on sensor detections through V2X.
How Emergency Vehicle Preemption works
Emergency vehicle seeking preemption
The OBU on the ambulance sends a preemption request message to the RSU at the next intersection
Traffic Light Controller handshakes with RSU
The RSU negotiates with the Traffic Light Controller to run the implemented preemption logic
Safe to enter intersection
The ambulance receives a confirmation that preemption is granted. This may include an audible or visual signal.
Intersection goes back to normal state
The ambulance sends V2X messages with its position to trigger normal state when it has left the intersection.
Clearing the next intersection before the ambulance
Smart cameras detect vehicles in the next intersection, so the RSU alerts the ambulance driver to be careful
