| 摘要 |
A system and method of centralizing traffic signal preemption for roadway emergency operations provides for increased accuracy and coordination of emergency response vehicles along an emergency route. A centralized preemption system receives status and location information, e.g., GPS, from emergency vehicles via fleet management systems or dispatch centers. As an emergency route is determined and projected in real-time, predetermined policies are applied to create an overall preemption plan of traffic lights at intersections along an anticipated route. The preemption plan results in preemption directives being transmitted to traffic management systems that are controlling traffic signal controllers at intersections along the route. The centralized preemption system may coordinate among many traffic management systems that provides for a much larger preemption service area including multiple jurisdictions.
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