Signal priority and ETSI J2735

With the release of SXL 1.1 for traffic lights, a dedicated signal priority command and status were added.

• M0033 - Request signal priority
• S0033 - Signal priority status

Mapping between RSMP M0022/S0033 and ETSI/J2735

In the future it is likely that a ETSI/J2735 <-> RSMP converter needs to be established as part of the NordicWay3 project, and therefore it is desirable the standards match as closely as possible to avoid confusion. Therefore, RSMP Nordic suggests that any conversion between ETSI/J2735 should be done in the following manner:

A comparison of the 's' field in the S0033 message:

RSMP S0033	J2735/ETSI	Comment
N/A	unknown
received	requested
queued	processing
activated	granted
N/A	watchOtherTraffic	E.g. all red
completed	N/A
timeout	maxPresence	Prioirization never gets activated (queued for too long)
rejected	rejected
cooldown	reserviceLocked	Prior conditions causes the priority request to be rejected. The controller requires the passage of time before another similar request will be accepted
stale	N/A	Priority active for too long without cancellation

And in the request message, M0022:

RSMP M0022	J2735/ETSI
connectionId	laneConnectionId
laneInId/laneOutId	inBoundlane/outBoundlane
type	priorityRequestType
vehicleType	basicVehicleRole