Navigation bar
  Print document Start Previous page
 81 of 303 
Next page End  

SAE J2735-Draft-Rev29 [issued: 12-11-08] 
-
81 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
an approach structure for a drivable lane for motor vehicles.  There is typically at least one ReferenceLane
present for each approach and may be zero or more VehicleComputedLane objects, barrier objects, and
crosswalk objects as well in the enclosing approach structure.  The nodeList provide a detailed set of offset
values to map the path and width of the lane.
ASN.1 Representation:
VehicleReferenceLane ::= SEQUENCE {
   laneNumber       LaneNumber
   laneWidth        LaneWidth  OPTIONAL, 
   laneAttributes   VehicleLaneAttributes
   nodeList         NodeList,
                    -- path details of the lane and width
   keepOutList      NodeList OPTIONAL, 
                    -- no stop points along the path 
   connectsTo       ConnectsTo  OPTIONAL, 
                    -- a list of other lanes and their
                    -- turning use by this lane
   ... 
   }
XML Representation:
<xs:complexType name="VehicleReferenceLane" >
      <xs:sequence>
         <xs:element name="laneNumber" type="LaneNumber" />
         <xs:element name="laneWidth" type="LaneWidth"  minOccurs="0"/>
         <xs:element name="laneAttributes" type="VehicleLaneAttributes" />
         <xs:element name="nodeList" type="NodeList" />
         <!-- path details of the lane and width -->
         <xs:element name="keepOutList" type="NodeList"  minOccurs="0"/>
         <!-- no stop points along the path -->
         <xs:element name="connectsTo" type="ConnectsTo"  minOccurs="0"/>
         <!-- a list of other lanes and their
         turning use by this lane -->
      </xs:sequence>
</xs:complexType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_Approach <ASN> <XML>.   In addition, this item may be used by data structures in other ITS
standards.
6.50 Data Frame: DF_VehicleSize
Use: The VehicleSize is a data frame representing the vehicle length and vehicle width in a three byte
value.  
ASN.1 Representation:
VehicleSize ::= SEQUENCE {
   width     VehicleWidth,
   length    VehicleLength
   }  -- 3 bytes in length
XML Representation:
<xs:complexType name="VehicleSize" >
      <xs:annotation>
         <xs:documentation>       
            3 bytes in length
         </xs:documentation>
      </xs:annotation>
      <xs:sequence>
         <xs:element name="width" type="VehicleWidth" />
         <xs:element name="length" type="VehicleLength" />
      </xs:sequence>
</xs:complexType>