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SAE J2735-Draft-Rev29 [issued: 12-11-08]
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141 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
MSG
In addition, this item may be used by data structures in other ITS standards.
Remarks: [Note the value range was in error in the past few editions, now corrected.]
7.76 Data Element: DE_LayerID
Use: The LayerID is a data concept used uniquely identity the layer of a geographic map fragment such as
an intersection. Note that the layer type is used simply as a means to express a layer within a transmitted
message, it has no value as a unique or permanent naming system for the map object (such as an
intersection or any of its component parts).
ASN.1 Representation:
LayerID ::= INTEGER (0..100)
XML Representation:
<xs:simpleType name="LayerID" >
<xs:restriction base="xs:unsignedByte">
<xs:maxInclusive value="100"/>
</xs:restriction>
</xs:simpleType>
In addition, this item may be used by data structures in other ITS standards.
7.77 Data Element: DE_LayerType
Use: The LayerType is a data concept used uniquely identity the type of information to be found in a layer
of a geographic map fragment such as an intersection.
ASN.1 Representation:
LayerType ::= ENUMERATED {
none (0),
mixedContent (1), -- two or more of the below types
generalMapData (2),
intersectionData (3),
curveData (4),
roadwaySectionData (5),
parkingAreaData (6),
sharedLaneData (7),
... -- # LOCAL_CONTENT
}
-- values to 127 reserved for std use
-- values 128 to 255 reserved for local use
XML Representation:
<xs:simpleType name="LayerType" >
<xs:annotation>
<xs:appinfo>
none (0)
mixedContent (1) -- two or more of the below types
generalMapData (2)
intersectionData (3)
curveData (4)
roadwaySectionData (5)
parkingAreaData (6)
sharedLaneData (7)
</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>