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Routine position, speed, direction messages

OBU Listening on the Control Channel 1

OBU Transmitting on the Control Channel

5.9 GHz DSRC VEHICLE TO VEHICLE APPLICATIONS

COOPERATIVE COLLISION WARNING/AVOIDANCE

SLOWED OR STOPPED TRAFFIC

Note 1: Once traffic slows to 10 mph or below the vehicles transmit the position, speed, and direction message every 100 ms at 15 m range.

Note 2: The vehicle’s position, speed, direction and acceleration message is sent every 100 ms with a range of 15 m (~50 ft) but 300 m (1000 ft) when receiving a faster vehicle’s signal.

OBU Receiving on the Vehicle to Vehicle channel

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

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