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SAE J2735-Draft-Rev28 [issued: 11-10-08] 
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214 -
This is an SAE Motor Vehicle Council draft document of the DSRC committee, subject to change.
            rightFront (4) -- B'0100  Right Front Event
            rightRear (8) -- B'1000  Right Rear Event
         </xs:appinfo>
         <xs:documentation>       
            to fit in 4 bits
         </xs:documentation>
      </xs:annotation>
      <xs:union>
         <xs:simpleType>
            <xs:restriction base="xs:int">
               <xs:minInclusive value="0"/>
               <xs:maxInclusive value="8"/>
            </xs:restriction>
         </xs:simpleType>
         <xs:simpleType>
            <xs:restriction base="xs:string">
               <xs:enumeration value="allOff"/>
               <xs:enumeration value="leftFront"/>
               <xs:enumeration value="leftRear"/>
               <xs:enumeration value="rightFront"/>
               <xs:enumeration value="rightRear"/>
            </xs:restriction>
         </xs:simpleType >
      </xs:union>
</xs:simpleType>
<xs:simpleType name="VerticalAccelerationThreshold">
   <xs:list itemType="VerticalAccelerationThreshold-item"/>
</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: [Note there is a suggestion to fill a complete byte with this DE, this need to be done in
conjunction with the final encoding to be used.] 
7.156 Data Element: DE_VerticalAcceleration
Use: A data element representing the signed vertical acceleration of the vehicle along the vertical axis in
units of 0.080 meters per second squared.  This provides a range of over 1G in each direction in a one byte
value.  
ASN.1 Representation:
VerticalAcceleration ::= INTEGER (-127..127) -- LSB units are 0.080 m/s^2
XML Representation:
<xs:simpleType name="VerticalAcceleration" >
      <xs:annotation>
         <xs:documentation>       
            LSB units are 0.080 m/s^2
         </xs:documentation>
      </xs:annotation>
      <xs:restriction base="xs:byte">
         <xs:minInclusive 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: [Note:  Traffic Info group wants resolution to be 0.1 ms^2  So new max value moves form 0.08
*127 = 10.16G to be 0.1 * 127 = 12,70 Gs, anybody else care about this change? ]