Florida Statewide and Regional ITS Architectures
This service package utilizes connected vehicle technologies, including vehicle-to infrastructure (V2I), vehicle-to-vehicle (V2V) communications and Queue Detection and Warning (QDAW) to enable vehicles within the queue event to automatically broadcast their queued status information (e.g., rapid deceleration, disabled status, lane location) to nearby upstream vehicles and to centers (such as the TMC). The QDAW system uses sensors to determine traffic conditions (e.g., speed, volume) throughout active work zones and broadcast queue warnings to up-stream vehicles in order to minimize or prevent rear-end or other secondary collisions. This service package is not intended to operate as a crash avoidance system. In contrast to such systems, this service package will engage well in advance of any potential crash situation, providing messages and information to the driver in order to minimize the likelihood of his needing to take crash avoidance or mitigation actions later. It performs two essential tasks: queue determination (detection and/or prediction) and queue information dissemination using vehicle-based, infrastructure-based, or hybrid solutions.