Traffic preemption system and related methods
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United States of America Patent
Stats
-
Dec 25, 2012
Grant Date -
N/A
app pub date -
Nov 8, 2011
filing date -
Feb 20, 2009
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A traffic preemption system and related methods. Implementations may include a vehicle preemption unit mounted to a vehicle including an optical transmitter adapted to identify to an intersection preemption unit coupled with an intersection system controller the presence of the vehicle. The vehicle preemption unit may include a vehicle radio transceiver and the optical transmitter and the vehicle radio transceiver may be coupled with a vehicle controller. The intersection preemption unit may include an optical receiver and an intersection radio transceiver. The optical receiver and the intersection radio transceiver may each be coupled with an intersection controller. The intersection preemption unit may be adapted to change a traffic light in favor of the vehicle to which the vehicle preemption unit is mounted in response to an optical signal, a radio signal, or a combination of optical and radio signals from the vehicle preemption unit.
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International Classification(s)
Cited Art Landscape
Patent Citation Ranking
- 2 Citation Count
- G08G Class
- 1.76 % this patent is cited more than
- 13 Age