 |
 |
 |
 |
|
 |
 |
SAE J2735-Draft-Rev28 [issued: 11-10-08]
-
201 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
MSG
<XML>, and
DF
In addition, this item may be used by data structures in other ITS standards.
Remarks: Most of these values are used to detect that the transit vehicle in not in a state where movement
can occur (and that therefore any priority signal should be be ignored until the vehicle is again ready to
depart). Two bits (bits x and y) are used to relate the relative occupancy of the vehicle.
7.139 Data Element: DE_TransitPreEmptionRequest
Use: The TransitPreEmptionRequest data element will be used to enumerate various type of preemption
events.
ASN.1 Representation:
TransitPreEmptionRequest ::= ENUMERATED {
itemOne (0),
itemTwo (1), -- add any comments here
itemThree (2),
itemFour (3),
... -- # LOCAL_CONTENT
}
-- values to 127 reserved for std use
-- values 128 to 255 reserved for local use
XML Representation:
<xs:simpleType name="TransitPreEmptionRequest" >
<xs:annotation>
<xs:appinfo>
itemOne (0)
itemTwo (1) -- add any comments here
itemThree (2)
itemFour (3)
</xs:appinfo>
<xs:documentation>
values to 127 reserved for std use
values 128 to 255 reserved for local use
</xs:documentation>
</xs:annotation>
<xs:union>
<xs:simpleType>
<xs:restriction base="xs:unsignedInt">
<xs:minInclusive value="0"/>
<xs:maxInclusive value="3"/>
</xs:restriction>
</xs:simpleType>
<xs:simpleType>
<xs:restriction base="xs:string">
<xs:enumeration value="itemOne"/>
<xs:enumeration value="itemTwo"/>
<xs:enumeration value="itemThree"/>
<xs:enumeration value="itemFour"/>
</xs:restriction>
</xs:simpleType >
<xs:simpleType>
<xs:restriction base="local:TransitPreEmptionRequest" />
</xs:simpleType>
</xs:union>
</xs:simpleType>
In addition, this item may be used by data structures in other ITS standards.