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SAE J2735-Draft-Rev26 [issued: 09-18-08]
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102 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
Brake Status" Probe Data Element is intended to inform Probe Data Users as to whether or not the vehicles
Anti-Lock Brake system was engaged/activated at the time the Probe Data snapshot was taken. The
element merely indicates "Engaged" or "Not Engaged". An engaged/activated Anti-Lock Brake System
could indicate an extreme braking condition or a slippery roadway condition. An engaged/activated Anti-
Lock Brake system triggers the vehicle's Probe Data system to take a snapshot of all vehicle Probe Data
elements.
ASN.1 Representation:
AntiLockBrakeStatus ::= ENUMERATED {
notEquipped (0), -- B'00 Not Equipped
off (1), -- B'01 Off
on (2), -- B'10 On
engaged (3) -- B'11 Engaged
}
-- Encoded as a 2 bit value
XML Representation:
<xs:simpleType name="AntiLockBrakeStatus" >
<xs:annotation>
<xs:appinfo>
notEquipped (0) -- B'00 Not Equipped
off (1) -- B'01 Off
on (2) -- B'10 On
engaged (3) -- B'11 Engaged
</xs:appinfo>
<xs:documentation>
Encoded as a 2 bit value
</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="notEquipped"/>
<xs:enumeration value="off"/>
<xs:enumeration value="on"/>
<xs:enumeration value="engaged"/>
</xs:restriction>
</xs:simpleType >
</xs:union>
</xs:simpleType>
In addition, this item may be used by data structures in other ITS standards.
7.15 Data Element: DE_ApproachNumber
Use: The ApproachNumber data concept coveys a unique index value for an approach or an egress in an
intersection for the convenience of human users. It is typically used along with an optional human readable
string name for the object. Note the ApproachNumber is not used in numbering the lanes, refer to the
LaneNumber data element and the ApproachesObject data structure for a description of how indexing
works.
ASN.1 Representation:
ApproachNumber ::= INTEGER (0..127)
XML Representation:
<xs:simpleType name="ApproachNumber" >
<xs:restriction base="xs:unsignedByte">
<xs:maxInclusive value="127"/>
</xs:restriction>
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