 |
 |
 |
 |
|
 |
 |
SAE J2735-Draft-Rev29 [issued: 12-11-08]
-
196 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
7.141 Data Element: DE_URL_Short
Use: A valid internet style URI / URL in the form of a text string which will be used as the final portion of
a compound string which, when combined with the URL-Base data element, will link to the designated
resource. The string is to be interpreted as case-insensitive . Lower case is recommended. The very first
letter of the string shall be used to differentiate which one of multiple URL-Base values in a single system
is to b used. This allows for a total of up to 26+10= 36 such base addresses to exist. This initial letter is
then stripped off and used to differentiate which base a given short value is to be used with.
ASN.1 Representation:
URL-Short ::= IA5String (SIZE(1..15))
XML Representation:
<xs:restriction base="xs:string">
<xs:minLength value="1"/>
<xs:maxLength value="15"/>
</xs:restriction>
</xs:simpleType>
Used By: This entry is used directly by one other data structure in this standard, a MSG called
MSG_TravelerInformation <ASN> <XML>. In addition, this item may be used by data structures in
other ITS standards.
Remarks: It is the responsibility of the local deployment to ensure that all parties can reach the URL given
over their own networks, and that the protocols used are acceptable to all.
7.142 Data Element: DE_VehicleHeight
Use: The height of the vehicle, measured from the ground to the highest surface, excluding any antenna(s),
and expressed in units of 5 cm. In cases of vehicles with adjustable ride heights, camper shells, and other
devices which may cause the overall height to vary, the largest possible height will be used.
ASN.1 Representation:
VehicleHeight ::= INTEGER (0..127)
-- the height of the vehicle
-- LSB units of 5 cm, range to 6.35 meters
XML Representation:
<xs:simpleType name="VehicleHeight" >
<xs:annotation>
<xs:documentation>
the height of the vehicle
LSB units of 5 cm, range to 6.35 meters
</xs:documentation>
</xs:annotation>
<xs:restriction base="xs:unsignedByte">
<xs:maxInclusive value="127"/>
</xs:restriction>
</xs:simpleType>
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.
Remarks: Observe that this data element is often combined with DE_VehicleWidth when used.
7.143 Data Element: DE_VehicleLaneAttributes
Use: The VehicleLaneAttributes data element relates the allowed (possible) movements from a motorized
vehicle lane. Note that in practice these values may be further restricted by vehicle class, local regulatory
environment and other changing conditions.