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**Revision**: _V2.1.1_
```asn1
StabilityChangeIndication ::= SEQUENCE {
lossProbability StabilityLossProbability,
actionDeltaTime DeltaTimeTenthOfSecond,
...
}
```
### <a name="SteeringWheelAngle"></a>SteeringWheelAngle
This DF represents the steering wheel angle of the vehicle at certain point in time.
Fields:
* steeringWheelAngleValue [**SteeringWheelAngleValue**](#SteeringWheelAngleValue) <br>
steering wheel angle value.
* steeringWheelAngleConfidence [**SteeringWheelAngleConfidence**](#SteeringWheelAngleConfidence) <br>
confidence value of the steering wheel angle value.
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**Categories**: Vehicle information
**Revision**: _Created in V2.1.1_
```asn1
SteeringWheelAngle ::= SEQUENCE {
steeringWheelAngleValue SteeringWheelAngleValue,
steeringWheelAngleConfidence SteeringWheelAngleConfidence
}
```
### <a name="Traces"></a>Traces
This DF represents one or more paths using [**PathHistory**](#PathHistory).
**Categories**: GeoReference information
**Revision**: _Description revised in V2.1.1. Is is now based on Path and not on PathHistory_
```asn1
Traces ::= SEQUENCE SIZE(1..7) OF Path
```
### <a name="TrafficIslandPosition"></a>TrafficIslandPosition
Ths DF represents the a position on a traffic island between two lanes.
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Fields:
* oneSide [**LanePositionAndType**](#LanePositionAndType) <br>
represents one lane.
* otherSide [**LanePositionAndType**](#LanePositionAndType) <br>
represents the other lane.
**Categories**: Road Topology information
**Revision**: _Created in V2.1.1_
```asn1
TrafficIslandPosition ::= SEQUENCE {
oneSide LanePositionAndType,
otherSide LanePositionAndType,
...
}
```
### <a name="TrailerData"></a>TrailerData
This DF provides detailed information about an attached trailer.
Fields:
* refPointId [**Identifier1B**](#Identifier1B) <br>
identifier of the reference point of the trailer.
* hitchPointOffset [**StandardLength1B**](#StandardLength1B) <br>
optional position of the hitch point in negative x-direction (according to ISO 8855) from the
vehicle Reference Point.
* frontOverhang [**StandardLength1B**](#StandardLength1B) OPTIONAL<br>
optional length of the trailer overhang in the positive x direction (according to ISO 8855) from the
trailer Reference Point indicated by the refPointID. The value defaults to 0 in case the trailer
is not overhanging to the front with respect to the trailer reference point.
* rearOverhang [**StandardLength1B**](#StandardLength1B) OPTIONAL<br>
optional length of the trailer overhang in the negative x direction (according to ISO 8855) from the
trailer Reference Point indicated by the refPointID.
* trailerWidth [**VehicleWidth**](#VehicleWidth) OPTIONAL<br>
optional width of the trailer.
* hitchAngle [**CartesianAngle**](#CartesianAngle) <br>
optional Value and confidence value of the angle between the trailer orientation (corresponding to the x
direction of the ISO 8855 [2] coordinate system centered on the trailer) and the direction of
the segment having as end points the reference point of the trailer and the reference point of
the pulling vehicle, which can be another trailer or a vehicle looking on the horizontal plane
xy, described in the local Cartesian coordinate system of the trailer. The
angle is measured with negative values considering the trailer orientation turning clockwise
starting from the segment direction. The angle value accuracy is provided with the
confidence level of 95 %.
**Categories**: Vehicle information
**Revision**: _Created in V2.1.1_
```asn1
TrailerData ::= SEQUENCE {
refPointId Identifier1B,
hitchPointOffset StandardLength1B,
frontOverhang StandardLength1B OPTIONAL,
rearOverhang StandardLength1B OPTIONAL,
trailerWidth VehicleWidth OPTIONAL,
hitchAngle CartesianAngle,
...
}
```
### <a name="TrajectoryInterceptionIndication"></a>TrajectoryInterceptionIndication
This DF provides the trajectory interception indication of ego-VRU ITS-S with another ITS-Ss.
* subjectStation [**StationId**](#StationId) OPTIONAL<br>
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indicates the subject station.
* trajectoryInterceptionProbability [**TrajectoryInterceptionProbability**](#TrajectoryInterceptionProbability) <br>
indicates the propbability of the interception of the subject station trajectory
with the trajectory of the station indicated in the component subjectStation.
* trajectoryInterceptionConfidence [**TrajectoryInterceptionConfidence**](#TrajectoryInterceptionConfidence) OPTIONAL<br>
indicates the confidence of interception of the subject station trajectory
with the trajectory of the station indicated in the component subjectStation.
**Categories**: Vehicle information
**Revision**: _Created in V2.1.1_
```asn1
TrajectoryInterceptionIndication ::= SEQUENCE {
subjectStation StationId OPTIONAL,
trajectoryInterceptionProbability TrajectoryInterceptionProbability,
trajectoryInterceptionConfidence TrajectoryInterceptionConfidence OPTIONAL,
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```
### <a name="VarLengthNumber"></a>VarLengthNumber
This DF together with its sub DFs Ext1, Ext2 and the DE Ext3 provides the custom (i.e. not ASN.1 standard) definition of an integer with variable lenght, that can be used for example to encode the ITS-AID.
**Categories**: Vehicle information
**Revision**: _Created in V2.1.1_
```asn1
VarLengthNumber::=CHOICE{
content [0] INTEGER(0..127),
extension [1] Ext1
}
Ext1::=CHOICE{
content [0] INTEGER(128..16511),
extension [1] Ext2
}
Ext2::=CHOICE{
content [0] INTEGER(16512..2113663),
extension [1] Ext3
}
Ext3::= INTEGER(2113664..270549119,...)
```
### <a name="VerticalAcceleration"></a>VerticalAcceleration
This DF indicates the vehicle acceleration at vertical direction and the associated confidence value.
Fields:
* verticalAccelerationValue [**VerticalAccelerationValue**](#VerticalAccelerationValue) <br>
vertical acceleration value at a point in time.
* verticalAccelerationConfidence [**AccelerationConfidence**](#AccelerationConfidence) <br>
confidence value of the vertical acceleration value with a predefined confidence level.
**Categories**: Vehicle information
**Revision**: _Description revised in V2.1.1_
NOTE: this DF is kept for backwards compatibility reasons only. It is recommended to use [**Acceleration1d**](#Acceleration1d) instead
>>>
```asn1
VerticalAcceleration ::= SEQUENCE {
verticalAccelerationValue VerticalAccelerationValue,
verticalAccelerationConfidence AccelerationConfidence
}
```
### <a name="VehicleIdentification"></a>VehicleIdentification
This DF provides information related to the identification of a vehicle.
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Fields:
* wMInumber [**WMInumber**](#WMInumber) OPTIONAL<br>
World Manufacturer Identifier (WMI) code.
* vDS [**VDS**](#VDS) OPTIONAL<br>
Vehicle Descriptor Section (VDS).
**Categories**: Vehicle information
**Revision**: _V1.3.1_
```asn1
VehicleIdentification ::= SEQUENCE {
wMInumber WMInumber OPTIONAL,
vDS VDS OPTIONAL,
...
}
```
### <a name="VehicleLength"></a>VehicleLength
This DF represents the length of vehicle and accuracy indication information.
Fields:
* vehicleLengthValue [**VehicleLengthValue**](#VehicleLengthValue) <br>
length of vehicle.
* vehicleLengthConfidenceIndication [**VehicleLengthConfidenceIndication**](#VehicleLengthConfidenceIndication) <br>
**Categories**: Vehicle information
**Revision**: _V1.3.1_
```asn1
VehicleLength ::= SEQUENCE {
vehicleLengthValue VehicleLengthValue,
vehicleLengthConfidenceIndication VehicleLengthConfidenceIndication
}
```
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### <a name="VehicleLengthV2"></a>VehicleLengthV2
This DF represents the length of vehicle and accuracy indication information.
It shall include the following components:
Fields:
* vehicleLengthValue [**VehicleLengthValue**](#VehicleLengthValue) <br>
length of vehicle.
* trailerPresenceInformation [**TrailerPresenceInformation**](#TrailerPresenceInformation) <br>
information about the trailer presence.
**Categories**: Vehicle information
**Revision**: _created in V2.1.1 based on @ref VehicleLength but using @ref TrailerPresenceInformation_
```asn1
VehicleLengthV2 ::= SEQUENCE {
vehicleLengthValue VehicleLengthValue,
trailerPresenceInformation TrailerPresenceInformation
}
```
### <a name="Velocity3dWithConfidence"></a>Velocity3dWithConfidence
This DF represents a velocity vector with associated confidence value.
The following options are available:
Fields:
* polarVelocity [**VelocityPolarWithZ**](#VelocityPolarWithZ) <br>
the representation of the velocity vector in a polar coordinate system.
* cartesianVelocity [**VelocityCartesian**](#VelocityCartesian) <br>
the representation of the velocity vector in a cartesian coordinate system.
**Categories**: Kinematics information
**Revision**: _Created in V2.1.1_
```asn1
Velocity3dWithConfidence::= CHOICE{
polarVelocity VelocityPolarWithZ,
cartesianVelocity VelocityCartesian
}
```
### <a name="VelocityCartesian"></a>VelocityCartesian
This DF represents a velocity vector in a cartesian coordinate system.
It shall include the following components:
Fields:
* xVelocity [**VelocityComponent**](#VelocityComponent) <br>
the x component of the velocity vector with the associated confidence value.
* yVelocity [**VelocityComponent**](#VelocityComponent) <br>
the y component of the velocity vector with the associated confidence value.
* zVelocity [**VelocityComponent**](#VelocityComponent) OPTIONAL<br>
the optional z component of the velocity vector with the associated confidence value.
**Categories**: Kinematics information
**Revision**: _Created in V2.1.1_
```asn1
VelocityCartesian::= SEQUENCE {
xVelocity VelocityComponent,
yVelocity VelocityComponent,
zVelocity VelocityComponent OPTIONAL
}
```
### <a name="VelocityComponent"></a>VelocityComponent
This DF represents a component of the velocity vector and the associated confidence value.
It shall include the following components:
Fields:
* value [**VelocityComponentValue**](#VelocityComponentValue) <br>
the value of the component.
* confidence [**SpeedConfidence**](#SpeedConfidence) <br>
the confidence value of the value.
**Categories**: Kinematics information
**Revision**: _V2.1.1_
```asn1
VelocityComponent ::= SEQUENCE {
confidence SpeedConfidence
}
```
### <a name="VelocityPolarWithZ"></a>VelocityPolarWithZ
This DF represents a velocity vector in a polar coordinate system.
It shall include the following components:
Fields:
magnitude of the velocity vector of the detected object in the X-Y plane with the associated confidence value.
* velocityDirection [**CartesianAngle**](#CartesianAngle) <br>
polar angle of the velocity vector of the detected object in the X-Y plane with the associated confidence value.
* zVelocity [**VelocityComponent**](#VelocityComponent) OPTIONAL<br>
the optional z component of the velocity vector with the associated confidence value.
**Categories**: Kinematics information
**Revision**: _Created in V2.1.1_
```asn1
VelocityPolarWithZ::= SEQUENCE {
velocityDirection CartesianAngle,
zVelocity VelocityComponent OPTIONAL
}
```
### <a name="VruClusterInformation"></a>VruClusterInformation
This DF provides information about a VRU cluster.
* clusterId [**Identifier1B**](#Identifier1B) OPTIONAL<br>
* clusterBoundingBoxShape [**Shape**](#Shape) (WITH COMPONENTS{..., elliptical ABSENT, radial ABSENT, radialShapes ABSENT}) OPTIONAL<br>
optionally indicates the shape of the cluster bounding box.
* clusterCardinalitySize [**CardinalNumber1B**](#CardinalNumber1B) <br>
indicates an estimation of the number of VRUs in the group, i.e. the known members in the cluster + 1 (for the cluster leader) .
* clusterProfiles [**VruClusterProfiles**](#VruClusterProfiles) OPTIONAL<br>
optionally identifies all the VRU profile types that are known to be within the cluster.
if this component is absent it means that the information is unavailable.
**Categories**: VRU information
**Revision**: _Created in V2.1.1_
```asn1
VruClusterInformation ::= SEQUENCE {
clusterId Identifier1B OPTIONAL,
clusterBoundingBoxShape Shape (WITH COMPONENTS{..., elliptical ABSENT, radial ABSENT, radialShapes ABSENT}) OPTIONAL,
clusterCardinalitySize CardinalNumber1B,
clusterProfiles VruClusterProfiles OPTIONAL,
...
}
```
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### <a name="VruExteriorLights"></a>VruExteriorLights
This DF represents the status of the exterior light switches of a VRU.
This DF is an extension of the vehicular DE [**ExteriorLights**](#ExteriorLights).
It shall include the following components:
Fields:
* vehicular [**ExteriorLights**](#ExteriorLights) <br>
represents the status of the exterior light switches of a road vehicle.
* vruSpecific [**VruSpecificExteriorLights**](#VruSpecificExteriorLights) <br>
represents the status of the exterior light switches of a VRU.
**Categories**: VRU information
**Revision**: _created in V2.1.1_
```asn1
VruExteriorLights ::= SEQUENCE {
vehicular ExteriorLights,
vruSpecific VruSpecificExteriorLights,
...
}
```
### <a name="VruProfileAndSubprofile"></a>VruProfileAndSubprofile
This DF indicates the profile of a VRU including sub-profile information
It identifies four options corresponding to the four types of VRU profiles specified in ETSI TS 103 300-2 [i.18]:
Fields:
* pedestrian [**VruSubProfilePedestrian**](#VruSubProfilePedestrian) <br>
VRU Profile 1 - Pedestrian.
* bicyclistAndLightVruVehicle [**VruSubProfileBicyclist**](#VruSubProfileBicyclist) <br>
VRU Profile 2 - Bicyclist.
* motorcyclist [**VruSubProfileMotorcyclist**](#VruSubProfileMotorcyclist) <br>
VRU Profile 3 - Motorcyclist.
* animal [**VruSubProfileAnimal**](#VruSubProfileAnimal) <br>
**Categories**: VRU information
**Revision**: _Created in V2.1.1_
```asn1
VruProfileAndSubprofile ::= CHOICE {
pedestrian VruSubProfilePedestrian,
bicyclistAndLightVruVehicle VruSubProfileBicyclist,
animal VruSubProfileAnimal,
...
}
```
### <a name="Wgs84Angle"></a>Wgs84Angle
This DF represents an angular component along with a confidence value in the WGS84 coordinate system.
The specific WGS84 coordinate system is specified by the corresponding standards applying this DE.
Fields:
* value [**Wgs84AngleValue**](#Wgs84AngleValue) <br>
the angle value, which can be estimated as the mean of the current distribution.
* confidence [**Wgs84AngleConfidence**](#Wgs84AngleConfidence) <br>
the confidence value associated to the angle value.
**Categories**: GeoReference information
**Revision**: _Created in V2.1.1_
```asn1
Wgs84Angle ::= SEQUENCE {
value Wgs84AngleValue,
confidence Wgs84AngleConfidence
}
```
### <a name="YawRate"></a>YawRate
This DF represents a yaw rate of vehicle at a point in time.
Fields:
* yawRateValue [**YawRateValue**](#YawRateValue) <br>
yaw rate value at a point in time.
* yawRateConfidence [**YawRateConfidence**](#YawRateConfidence) <br>
confidence value associated to the yaw rate value.
**Categories**: Vehicle Information
**Revision**: _V1.3.1_
```asn1
YawRate::= SEQUENCE {
yawRateValue YawRateValue,
yawRateConfidence YawRateConfidence
}
```