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Emergency services vehicle based intersection management system Disclosure Number: IPCOM000127005D
Original Publication Date: 2005-Aug-17
Included in the Prior Art Database: 2005-Aug-17
Document File: 4 page(s) / 112K

Publishing Venue



A way to control traffic signal operations at dangerous intersections in order for emergency services vehicles to pass through safely enroute to a request for help.

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Emergency services vehicle based intersection management system

Disclosed is a system for an emergency services vehicle based intersection management system.

There is an inherent problem whenever emergency services vehicles approach busy intersections. While lights and sirens are on, other drivers may be oblivious to the advancing vehicle. Distractions could be phone, radio, talking, etc. One possible solution is a wireless transmitter/GPS locator inside emergency vehicles. This transmitter would be keyed and encrypted for security to prevent abuse or hijacking, and would be activated via the same switch as the lights and/or sirens. When either is operated, the transmitter and GPS would be activated, and would connect to receivers once within a certain proximity of particular intersections (not necessarily all). Once connected, the receiver would activate a relay in the traffic signal controller, causing lights in all directions to begin a normal yellow to red transition. It would also activate a flashing strobe to indicate the approach of the emergency vehicle. This would cause all traffic to come to a stop allowing for safe passage of the emergency services vehicle.

GPS technology would be used to constantly monitor all "connected" signal controllers. The "connected" intersections and emergency service vehicles would be constantly visible to a central monitoring system, enabling personnel to see if a particular intersection is in operational mode. This could enable a system of "read-ahead" type actions, causing the sequence of lights along a known or often used path to occur even sooner, allowing more time for safe passage, and could dynamically adapt to a changing route should the driver need to pursue a different path to the required location. It could also allow for a timer to control the return to normal signal operation instead of distance of the emergency vehicle from the intersection.

This would make it easier and safer for the operators of the emergency services vehicles to navigate these potentially dangerous intersections.

The system woul...