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SAE J2735-Draft-Rev26 [issued: 09-18-08] 
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This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
ASN.1 Representation:
Position2D ::= SEQUENCE {
   lat    Latitude,  -- in 1/8th micro degrees
   long   Longitude  -- in 1/8th micro degrees
   }
XML Representation:
<xs:complexType name="Position2D" >
      <xs:sequence>
         <xs:element name="lat" type="Latitude" />
         <!-- in 1/8th micro degrees -->
         <xs:element name="long" type="Longitude" />
         <!-- in 1/8th micro degrees -->
      </xs:sequence>
</xs:complexType>
Used By: This entry is used directly by one other data structure in this standard, a DF called
DF_VehicleStatus <ASN> <XML>.   In addition, this item may be used by data structures in other ITS
standards.
6.33 Data Frame: DF_Position3D
Use: A collection of the two 4 byte lat-long information elements and the one 2 byte elevation used to
build a complete 3D position set in 10 bytes.
ASN.1 Representation:
Position3D ::= SEQUENCE {
   lat         Latitude,   -- in 1/8th micro degrees
   long        Longitude,  -- in 1/8th micro degrees
   elevation   Elevation    
   }
XML Representation:
<xs:complexType name="Position3D" >
      <xs:sequence>
         <xs:element name="lat" type="Latitude" />
         <!-- in 1/8th micro degrees -->
         <xs:element name="long" type="Longitude" />
         <!-- in 1/8th micro degrees -->
         <xs:element name="elevation" type="Elevation" />
      </xs:sequence>
</xs:complexType>
Used By: This entry is directly used by the following 4 other data structures in this standard (record type,
descriptive name, ASN.1, and XML name (if present) of each):
DF 
<ASN> <XML>, and
DF 
<ASN> <XML>, and
DF 
<ASN> <XML>, and
DF 
In addition, this item may be used by data structures in other ITS standards.
Remarks: Note that this data frame is also used in defining a data blob.
6.34 Data Frame: DF_PositionConfidenceSet
Use: A single byte long data frame combining multiple related bit fields into one byte.
ASN.1 Representation:
PositionConfidenceSet ::= SEQUENCE {
   pos        PositionConfidence
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