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SAE J2735-Draft-Rev28 [issued: 11-10-08]
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316 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Roadside Broadcast Message
Roadside broadcast message includes the following data elements:
DE_MessageType
o
Message Type
ShapePointSet
o
Area (zone or authorized lane)
DF_FullPositionVector
o
Heading
DE _Speed
o
Speed Limit: this value shall provide the system limits for target speed values utilized by the
vehicle teams.
DE _Max Team Vehicles
o
Max Vehicles Per Team
DE _VehicleType
o
Vehicle Class – Utilize J2735 Vehicle types
6. Leave Team Message Operations
Vehicles are allowed to leave from any position within the team.
Any vehicle will be allowed to leave the team at any time.
The Leave event should be an event-based trigger or active control of the vehicle. Active control
should be something similar to cruise control features already in place, such as a driver pressing on the
brake. A trigger may also be a team-specific limit, such as a destination reached, or the team dynamics
have changed.
The vehicle should define an allowable separation distance threshold. The separation threshold will
define a threshold that the vehicle will maintain during teaming operations. If the separation threshold
is exceeded, the vehicle may choose to leave the team or adjust its threshold to maintain teaming
operations.
Prior to Leaving a team, the vehicle shall increase its separation distance to the next vehicle to enable
safe human-controlled operations.