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SAE J2735-Draft-Rev28 [issued: 11-10-08]
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167 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Used By: This entry is used directly by one other data structure in this standard, a MSG called
MSG_RoadSideAlert <ASN> <XML>. In addition, this item may be used by data structures in other
ITS standards.
Remarks: Note that a well chosen roadway with a set of priority schemes chosen to be very well managed
can be thrown into chaos when an incident event occurs in it and when emergency response equipment
enters the transmission zone during the response to the event. Local agreements on practices, including
road side unit (RSU) placement, will be needed to insure correct operation.
7.105 Data Element: DE_PriorityState
Use: The PriorityState data element is used to relate the current priority state of a signal system. TSP
stands for Transit Signal Priority, a term used in NTCIP and in TCIP. Note that this data element follows
the values defined in the tspInputStatus object defned in the NYC ASTC2 traffic controller effort.
ASN.1 Representation:
PriorityState ::= ENUMERATED {
noneActive (0), -- No signal priority (same as value = 1)
none (1), -- TSP None
requested (2), -- TSP Requested
active (3), -- TSP Active
activeButIhibitd (4), -- TSP Reservice (active but inhibited)
seccess (5), -- TSP Success
removed (6), -- TSP Removed
clearFail (7), -- TSP Clear Fail
detectFail (8), -- TSP Detect Fail
detectClear (9), -- TSP Detect Clear
abort (10), -- TSP Abort (needed to remain on-line)
delayTiming (11), -- TSP Delay Timing
extendTiming (12), -- TSP Extend Timing
preemptOverride (13), -- TSP Preempt Over-ride
adaptiveOverride (14), -- TSP Adaptive Over-ride
reserved (15),
... -- # LOCAL_CONTENT
}
-- To use 4 bits,
-- typically packed with other items in a BYTE
XML Representation:
<xs:simpleType name="PriorityState" >
<xs:annotation>
<xs:appinfo>
noneActive (0) -- No signal priority (same as value = 1)
none (1) -- TSP None
requested (2) -- TSP Requested
active (3) -- TSP Active
activeButIhibitd (4) -- TSP Reservice (active but inhibited)
seccess (5) -- TSP Success
removed (6) -- TSP Removed
clearFail (7) -- TSP Clear Fail
detectFail (8) -- TSP Detect Fail
detectClear (9) -- TSP Detect Clear
abort (10) -- TSP Abort (needed to remain on-line)
delayTiming (11) -- TSP Delay Timing
extendTiming (12) -- TSP Extend Timing
preemptOverride (13) -- TSP Preempt Over-ride
adaptiveOverride (14) -- TSP Adaptive Over-ride
reserved (15)
</xs:appinfo>
<xs:documentation>
To use 4 bits,
typically packed with other items in a INTEGER (-128..127)
</xs:documentation>
</xs:annotation>
<xs:union>
<xs:simpleType>