



Q-WARN User Needs (1)
Need the vehicle to be connected wirelessly to the Q-WARN system/Application
Vehicles should be wirelessly connected using Connected Vehicle or other conventional wireless technologies
Need to obtain specific traffic information from the vehicle or in-vehicle wireless devices
Information such as traffic flow, speed, sudden deceleration, weather, incidents or other information impacting traffic
conditions should be
pulled from the vehicle.
Need information on impending traffic queue should be provided to drivers/vehicles
In order to enable queue warning, recommend queue warning information such as “BACKUP AHEAD, BE PREPARED TO STOP, 1/4/MILE”.
Need to exchange traffic flow, traffic condition and queue backup information from other vehicles
To enable real-time queue warning, communication with other nearby vehicles on
the roadway
will be required to assess queue lengths in real time
Need to obtain information from traditional roadway sensor systems, in near real time, to assess roadway conditions and queue lengths
To aid in Q-WARN, the
system/application should obtain traffic flow and speed information from existing sensors (Vehicle Detection Sensors) and other probe system sensors, if available