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SAE J2735-Draft-Rev18 [issued: 06-26-07]
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41 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
<!-- 4 bits -->
<xs:element name="traction" type="TractionControlState" />
<!-- 2 bits -->
<xs:element name="abs" type="AntiLockBrakeStatus" />
<!-- 2 bits -->
</xs:sequence>
</xs:complexType>
Used by: This entry is directly used by the following 3 other data structures in this standard (record type,
descriptive name, ASN.1, and XML name (if present) of each):
DF
<XML>, and
DF
<XML>, and
MSG
In addition, this item may be used by data structures in other ITS standards.
6.6 Data Frame: DF_ComputedLane
Use: A ComputedLane data structure provides lane number, lane width and lane attributes within a
Approach structure. There is typically at least one ReferenceLane present and may be zero or more
ComputedLane objects as well in the enclosing Approach structure. The ComputedLane references a
ReferenceLane found in the same intersection (using the index in which is is found?) and an offset values
to map the path of the lane.
ASN.1 Representation:
ComputedLane ::= SEQUENCE {
laneNumber LaneNumber,
laneWidth LaneWidth OPTIONAL,
laneAttributes LaneAttributes,
refLaneNum LaneNumber,
-- number of the ref lane to be used
-- can reuse the lane number here
-- or for we need a new type
lineOffset DrivenLineOffset,
...
}
XML Representation:
<xs:complexType name="ComputedLane" >
<xs:sequence>
<xs:element name="laneNumber" type="LaneNumber" />
<xs:element name="laneWidth" type="LaneWidth" minOccurs="0"/>
<xs:element name="laneAttributes" type="LaneAttributes" />
<xs:element name="refLaneNum" type="LaneNumber" />
<!-- number of the ref lane to be used
can reuse the lane number here
or for we need a new type -->
<xs:element name="lineOffset" type="DrivenLineOffset" />
</xs:sequence>
</xs:complexType>
Used by: This entry is used directly by one other data structure in this standard, a DF called DF_Approach
Remarks: A Computed Lane has its own lane number, width and attributes (see also the Reference Lane).
The Reference Lane Number indicates which lane it parallels. The Driven Line Offset gives the distance
between the computed lane with respect to. its reference lane. Lane Width indicates the width of the driven
portion of the lane in decimeters. If 0, it is inherited from the Reference Lane. The Driven Line Offset is
not subject to coordinate granularity from the current NodeConfig