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SAE J2735-Draft-Rev18 [issued: 06-26-07]
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149 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
</xs:annotation>
<xs:sequence>
<xs:element name="typeEvent" >
<xs:simpleType>
<xs:restriction base ="itis:ITIScodes"/>
</xs:simpleType>
</xs:element>
<!-- a category and an item from that category
all ITS stds use the same types here
to explain the type of the
alert / danger / hazard involved
two bytes in length -->
<xs:element name="description" >
<xs:complexType>
<xs:sequence minOccurs="8" maxOccurs="8">
<xs:element name="description-item" >
<xs:simpleType>
<xs:restriction base ="itis:ITIScodes"/>
</xs:simpleType>
</xs:element>
<!-- eight ITIS code entries to further describe the event, give
advice, or any other ITIS codes non used positions are set to zero 16 bytes in length --
>
</xs:sequence>
</xs:complexType>
</xs:element>
<xs:element name="priority" type="Priority" />
<!-- the urgency of this message, a relative
degree of merit compared with other
similar messages for this type (not other
message being sent by the device) , nor a
priority of display urgency
one byte in length -->
<xs:element name="extent" type="Extent" />
<!-- the spatial distance over which this
message applies and should be presented
to the driver
one byte in length -->
<xs:element name="spaceVector" type="SpaceVector" />
<!-- a compact summary of the position,
heading, rate of speed, etc of the
event in question. Including stationary
and wide area events.
15 bytes in length -->
<xs:element name="furtherInfoID" type="FurtherInfoID" />
<!-- a link to any other incident
information data that may be available
in the normal ATIS incident description
or other messages
two bytes in length -->
</xs:sequence>
</xs:complexType>
Used by: This entry is used directly by one other data structure in this standard, a MSG called
MSG_EmergencyVehicleAlert <ASN> <XML>. In addition, this item may be used by data structures
in other ITS standards.
Remarks: Updated to conform to current styles and DSRC needs in the this (3rd) revision of the ATIS
standard. Deployments should also consult SAE J2735 "DSRC Message Set" for several additional use
cases dealing with mobile and stationary public safety vehicles using this message. When used in other
public safety messages, additonal elements may be appended to form new message types.
8.9 Data Frame: DF_SpaceVector [ATIS]
Use: This data frame provides a concise summary of an object's position (X,Y,Z) and motion vector
(heading and rate of speed), as well as the positioning technology employed and relative accuracy expected.