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Routine position, speed, direction messages

5.9 GHz DSRC VEHICLE TO VEHICLE APPLICATIONS

COOPERATIVE COLLISION WARNING/AVOIDANCE

Note: The vehicle’s position, speed, direction and acceleration message is nominally sent every 300 ms with a range of 110 m (~367 ft).

(with closely spaced vehicles @ 25 mph)

OBU Receiving on the Vehicle to Vehicle channel

OBU Transmitting and Receiving on the Vehicle to Vehicle channel @ 12 Mbps