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* yAngle [**CartesianAngle**](#CartesianAngle) OPTIONAL<br>
* xAngle [**CartesianAngle**](#CartesianAngle) OPTIONAL<br>
* zAngleRate [**CartesianAngularSpeed**](#CartesianAngularSpeed) OPTIONAL<br>
optional rate of the object at the time of measurement, with the associated variance.
The angular rate is measured with positive values considering the object orientation turning counter-clockwise around the z-axis.
* lowerTriangularCorrelationMatrices [**LowerTriangularPositiveSemidefiniteMatrices**](#LowerTriangularPositiveSemidefiniteMatrices) OPTIONAL<br>
optional set of lower triangular correlation matrices for selected components of the provided kinematic state and attitude vector.
* objectDimensionZ [**ObjectDimension**](#ObjectDimension) OPTIONAL<br>
optional z-dimension of object bounding box.
This dimension shall be measured along the direction of the z-axis after all the rotations have been applied.
* objectDimensionY [**ObjectDimension**](#ObjectDimension) OPTIONAL<br>
optional y-dimension of the object bounding box.
This dimension shall be measured along the direction of the y-axis after all the rotations have been applied.
* objectDimensionX [**ObjectDimension**](#ObjectDimension) OPTIONAL<br>
optional x-dimension of object bounding box.
This dimension shall be measured along the direction of the x-axis after all the rotations have been applied.
* objectAge [**DeltaTimeMilliSecondPosNeg**](#DeltaTimeMilliSecondPosNeg) (0..1500) OPTIONAL<br>
optional age of the detected and described object, i.e. the difference in time between the moment
it has been first detected and the reference time of the message. Value `1500` indicates that the object has been observed for more than 1.5s.
* objectPerceptionQuality [**ObjectPerceptionQuality**](#ObjectPerceptionQuality) OPTIONAL<br>
optional confidence associated to the object.
* sensorIdList [**SequenceOfIdentifier1B**](#SequenceOfIdentifier1B) OPTIONAL<br>
optional list of sensor-IDs which provided the measurement data.
* classification [**ObjectClassDescription**](#ObjectClassDescription) OPTIONAL<br>
optional classification of the described object
* mapPosition [**MapPosition**](#MapPosition) OPTIONAL<br>
**Categories**: Sensing information
**Revision**: _created in V2.1.1_
```asn1
PerceivedObject ::= SEQUENCE {
position CartesianPosition3dWithConfidence,
velocity Velocity3dWithConfidence OPTIONAL,
acceleration Acceleration3dWithConfidence OPTIONAL,
zAngle CartesianAngle OPTIONAL,
yAngle CartesianAngle OPTIONAL,
xAngle CartesianAngle OPTIONAL,
zAngleRate CartesianAngularSpeed OPTIONAL,
lowerTriangularCorrelationMatrices LowerTriangularPositiveSemidefiniteMatrices OPTIONAL,
objectDimensionZ ObjectDimension OPTIONAL,
objectDimensionY ObjectDimension OPTIONAL,
objectDimensionX ObjectDimension OPTIONAL,
objectAge DeltaTimeMilliSecondPosNeg (0..1500) OPTIONAL,
objectPerceptionQuality ObjectPerceptionQuality OPTIONAL,
sensorIdList SequenceOfIdentifier1B OPTIONAL,
classification ObjectClassDescription OPTIONAL,
mapPosition MapPosition OPTIONAL,
...
}
```
### <a name="PolygonalShape"></a>PolygonalShape
This DF represents the shape of a polygonal area or of a right prism.
It shall include the following components:
@8ref: @field shapeReferencePoint: the optional reference point used for the definition of the shape, relative to an externally specified reference position.
If this component is absent, the externally specified reference position represents the shape´s reference point.
* shapeReferencePoint [**CartesianPosition3d**](#CartesianPosition3d) OPTIONAL<br>
* polygon [**SequenceOfCartesianPosition3d**](#SequenceOfCartesianPosition3d) (SIZE(3..16,...))<br>
the polygonal area represented by a list of minimum `3` to maximum `16` [**CartesianPosition3d**](#CartesianPosition3d).
All nodes of the polygon shall be considered relative to the shape´s reference point.
* height [**StandardLength12b**](#StandardLength12b) OPTIONAL<br>
the optional height, present if the shape is a right prism extending in the positive z-axis.
**Categories**: GeoReference information
**Revision**: _created in V2.1.1_
```asn1
PolygonalShape ::= SEQUENCE {
shapeReferencePoint CartesianPosition3d OPTIONAL,
polygon SequenceOfCartesianPosition3d (SIZE(3..16,...)),
height StandardLength12b OPTIONAL
}
```
### <a name="PosConfidenceEllipse"></a>PosConfidenceEllipse
This DF indicates the horizontal position confidence ellipse which represents the estimated accuracy with a
confidence level of 95 %. The centre of the ellipse shape corresponds to the reference
position point for which the position accuracy is evaluated.
Fields:
* semiMajorConfidence [**SemiAxisLength**](#SemiAxisLength) <br>
half of length of the major axis, i.e. distance between the centre point
and major axis point of the position accuracy ellipse.
* semiMinorConfidence [**SemiAxisLength**](#SemiAxisLength) <br>
half of length of the minor axis, i.e. distance between the centre point
and minor axis point of the position accuracy ellipse.
* semiMajorOrientation [**HeadingValue**](#HeadingValue) <br>
orientation direction of the ellipse major axis of the position accuracy
ellipse with regards to the WGS84 north.
The specific WGS84 coordinate system is specified by the corresponding standards applying this DE.
**Categories**: GeoReference information
**Revision**: _V1.3.1_
```asn1
PosConfidenceEllipse ::= SEQUENCE {
semiMajorConfidence SemiAxisLength,
semiMinorConfidence SemiAxisLength,
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semiMajorOrientation HeadingValue
}
```
### <a name="PositionConfidenceEllipse"></a>PositionConfidenceEllipse
This DF indicates the horizontal position confidence ellipse which represents the estimated accuracy with a
confidence level of 95 %. The centre of the ellipse shape corresponds to the reference
position point for which the position accuracy is evaluated.
It shall include the following components:
Fields:
* semiMajorAxisLength [**SemiAxisLength**](#SemiAxisLength) <br>
half of length of the major axis, i.e. distance between the centre point
and major axis point of the position accuracy ellipse.
* semiMinorAxisLength [**SemiAxisLength**](#SemiAxisLength) <br>
half of length of the minor axis, i.e. distance between the centre point
and minor axis point of the position accuracy ellipse.
* semiMajorAxisOrientation [**Wgs84AngleValue**](#Wgs84AngleValue) <br>
orientation direction of the ellipse major axis of the position accuracy
ellipse with regards to the WGS84 north.
The specific WGS84 coordinate system is specified by the corresponding standards applying this DE.
**Categories**: GeoReference information
**Revision**: _created in V2.1.1 based on @ref PosConfidenceEllipse_
```asn1
PositionConfidenceEllipse ::= SEQUENCE {
semiMajorAxisLength SemiAxisLength,
semiMinorAxisLength SemiAxisLength,
semiMajorAxisOrientation Wgs84AngleValue
}
```
### <a name="PositionOfPillars"></a>PositionOfPillars
This DF shall contain a list of distances [**PosPillar**](#PosPillar) that refer to the perpendicular distance between centre of vehicle front bumper
and vehicle pillar A, between neighbour pillars until the last pillar of the vehicle.
Vehicle pillars refer to the vertical or near vertical support of vehicle,
designated respectively as the A, B, C or D and other pillars moving in side profile view from the front to rear.
The first value of the DF refers to the perpendicular distance from the centre of vehicle front bumper to
vehicle A pillar. The second value refers to the perpendicular distance from the centre position of A pillar
to the B pillar of vehicle and so on until the last pillar.
**Categories**: Vehicle information
**Revision**: _V1.3.1_
```asn1
PositionOfPillars ::= SEQUENCE (SIZE(1..3, ...)) OF PosPillar
```
### <a name="ProtectedCommunicationZone"></a>ProtectedCommunicationZone
This DF describes a zone of protection inside which the ITS communication should be restricted.
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Fields:
* protectedZoneType [**ProtectedZoneType**](#ProtectedZoneType) <br>
type of the protected zone.
* expiryTime [**TimestampIts**](#TimestampIts) OPTIONAL<br>
optional time at which the validity of the protected communication zone will expire.
* protectedZoneLatitude [**Latitude**](#Latitude) <br>
latitude of the centre point of the protected communication zone.
* protectedZoneLongitude [**Longitude**](#Longitude) <br>
longitude of the centre point of the protected communication zone.
* protectedZoneRadius [**ProtectedZoneRadius**](#ProtectedZoneRadius) OPTIONAL<br>
optional radius of the protected communication zone in metres.
* protectedZoneId [**ProtectedZoneId**](#ProtectedZoneId) OPTIONAL<br>
the optional ID of the protected communication zone.
**Categories**: Infrastructure information Communication information
**Revision**: _revised in V2.1.1 (changed protectedZoneID to protectedZoneId)_
>>>
NOTE: A protected communication zone may be defined around a CEN DSRC road side equipment.
>>>
```asn1
ProtectedCommunicationZone ::= SEQUENCE {
protectedZoneType ProtectedZoneType,
expiryTime TimestampIts OPTIONAL,
protectedZoneLatitude Latitude,
protectedZoneLongitude Longitude,
protectedZoneRadius ProtectedZoneRadius OPTIONAL,
...
}
```
### <a name="ProtectedCommunicationZonesRSU"></a>ProtectedCommunicationZonesRSU
This DF shall contain a list of [**ProtectedCommunicationZone**](#ProtectedCommunicationZone) provided by a road side ITS-S (Road Side Unit RSU).
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It may provide up to 16 protected communication zones information.
**Categories**: Infrastructure information Communication information
**Revision**: _V1.3.1_
```asn1
ProtectedCommunicationZonesRSU ::= SEQUENCE (SIZE(1..16)) OF ProtectedCommunicationZone
```
### <a name="PtActivation"></a>PtActivation
This DF represents activation data for real-time systems designed for operations control, traffic light priorities, track switches, barriers, etc.
using a range of activation devices equipped in public transport vehicles.
The activation of the corresponding equipment is triggered by the approach or passage of a public transport
vehicle at a certain point (e.g. a beacon).
Today there are different payload variants defined for public transport activation-data. The R09.x is one of
the industry standard used by public transport vehicles (e.g. buses, trams) in Europe (e.g. Germany Austria)
for controlling traffic lights, barriers, bollards, etc. This DF shall include information like route, course,
The R09.x content is defined in VDV recommendation 420 [i.7]. It includes following information:
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- Priority Request Information (pre-request, request, ready to start)
- End of Prioritization procedure
- Priority request direction
- Public Transport line number
- Priority of public transport
- Route line identifier of the public transport
- Route number identification
- Destination of public transport vehicle
Other countries may use different message sets defined by the local administration.
Fields:
* ptActivationType [**PtActivationType**](#PtActivationType) <br>
type of activation.
* ptActivationData [**PtActivationData**](#PtActivationData) <br>
**Categories**: Vehicle information
**Revision**: _V1.3.1_
```asn1
PtActivation ::= SEQUENCE {
ptActivationType PtActivationType,
ptActivationData PtActivationData
}
```
### <a name="RadialShape"></a>RadialShape
This DF describes a radial shape. The triangular or cone-shaped volume is
constructed by sweeping the provided range about the reference point between a horizontal start
and a horizontal end angle in positive angular direction of the WGS84
coordinate system. A vertical opening angle may be provided in a Cartesian coordinate system with
the x-axis located in the North-East plane of the WGS84 coordinate system. The sensor height may
be provided to reflect characteristics of sensors mounted at an altitude (e.g. sensors mounted
above intersections).
* shapeReferencePoint [**CartesianPosition3d**](#CartesianPosition3d) OPTIONAL<br>
the optional reference point used for the definition of the shape, relative to an externally specified reference position.
If this component is absent, the externally specified reference position represents the shape´s reference point.
* range [**StandardLength12b**](#StandardLength12b) <br>
the radial range of the shape from the shape´s reference point.
* stationaryHorizontalOpeningAngleStart [**Wgs84AngleValue**](#Wgs84AngleValue) <br>
the orientation indicating the beginning of the
shape's horizontal opening angle in positive angular direction with respect to the
WGS84 coordinate system.
* stationaryHorizontalOpeningAngleEnd [**Wgs84AngleValue**](#Wgs84AngleValue) <br>
The orientation indicating the end of the shape's
horizontal opening angle in positive angular direction with respect to the WGS84 coordinate system.
* verticalOpeningAngleStart [**CartesianAngleValue**](#CartesianAngleValue) OPTIONAL<br>
optional orientation indicating the beginning of the shape`s
opening angle in positive angular direction of a Cartesian coordinate system with its x-axis
located in the north-east plane of the WGS84 coordinate system.
* verticalOpeningAngleEnd [**CartesianAngleValue**](#CartesianAngleValue) OPTIONAL<br>
optional orientation indicating the end of the shape's
vertical opening angle in positive angular direction of a Cartesian coordinate system with its x-axis
located in the north-east plane of the WGS84 coordinate system.
**Categories**: Sensing information
**Revision**: _created in V2.1.1_
```asn1
RadialShape ::= SEQUENCE {
range StandardLength12b,
stationaryHorizontalOpeningAngleStart Wgs84AngleValue,
stationaryHorizontalOpeningAngleEnd Wgs84AngleValue,
verticalOpeningAngleStart CartesianAngleValue OPTIONAL,
verticalOpeningAngleEnd CartesianAngleValue OPTIONAL
}
```
### <a name="RadialShapes"></a>RadialShapes
This DF describes a list of radial shapes.
Fields:
* refPointId [**Identifier1B**](#Identifier1B) <br>
the identification of the reference point in case of a sensor mounted to trailer. Defaults to ITS ReferencePoint (0).
* xCoordinate [**CartesianCoordinateSmall**](#CartesianCoordinateSmall) <br>
the x-coordinate of the offset point.
* yCoordinate [**CartesianCoordinateSmall**](#CartesianCoordinateSmall) <br>
the y-coordinate of the offset point.
* zCoordinate [**CartesianCoordinateSmall**](#CartesianCoordinateSmall) OPTIONAL<br>
the optional z-coordinate of the offset point.
* radialShapesList [**RadialShapesList**](#RadialShapesList) <br>
the list of radial shape details.
**Categories**: Georeference information
**Revision**: _created in V2.1.1_
```asn1
RadialShapes ::= SEQUENCE {
refPointId Identifier1B,
xCoordinate CartesianCoordinateSmall,
yCoordinate CartesianCoordinateSmall,
zCoordinate CartesianCoordinateSmall OPTIONAL,
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}
```
### <a name="RadialShapesList"></a>RadialShapesList
The DF contains a list of [**RadialShapeDetails**](#RadialShapeDetails).
**Categories**: Georeference information
**Revision**: _created in V2.1.1_
```asn1
RadialShapesList ::= SEQUENCE SIZE(1..16,...) OF RadialShapeDetails
```
### <a name="RadialShapeDetails"></a>RadialShapeDetails
This DF describes a radial shape details. The triangular or cone-shaped volume is
constructed by sweeping the provided range about the reference point or about the offset
point (if provided) between a horizontal start and a horizontal end angle in positive angular direction of the WGS84
coordinate system. A vertical opening angle may be provided in a Cartesian coordinate system with
the x-axis located in the North-East plane of the WGS84 coordinate system. The sensor height may
be provided to reflect characteristics of sensors mounted at an altitude (e.g. sensors mounted
above intersections).
Fields:
* range [**StandardLength12b**](#StandardLength12b) <br>
the radial range of the sensor from the reference point or sensor point offset.
* horizontalOpeningAngleStart [**CartesianAngleValue**](#CartesianAngleValue) <br>
the orientation indicating the beginning of the
shape's horizontal opening angle in positive angular direction.
* horizontalOpeningAngleEnd [**CartesianAngleValue**](#CartesianAngleValue) <br>
The orientation indicating the end of the shape's horizontal
opening angle in positive angular direction.
* verticalOpeningAngleStart [**CartesianAngleValue**](#CartesianAngleValue) OPTIONAL<br>
optional orientation indicating the beginning of the shape's
vertical opening angle in positive angular direction of a Cartesian coordinate system with its x-axis
located in the north-east plane of the WGS84 coordinate system.
* verticalOpeningAngleEnd [**CartesianAngleValue**](#CartesianAngleValue) OPTIONAL<br>
optional orientation indicating the end of the shape's
vertical opening angle in positive angular direction of a Cartesian coordinate system with its x-axis
located in the north-east plane of the WGS84 coordinate system.
**Categories**: Georeference information
**Revision**: _created in V2.1.1_
```asn1
RadialShapeDetails ::= SEQUENCE {
range StandardLength12b,
horizontalOpeningAngleStart CartesianAngleValue,
horizontalOpeningAngleEnd CartesianAngleValue,
verticalOpeningAngleStart CartesianAngleValue OPTIONAL,
verticalOpeningAngleEnd CartesianAngleValue OPTIONAL
}
```
### <a name="RectangularShape"></a>RectangularShape
This DF represents the shape of a rectangular area or a right rectangular prism that is centred on a reference position defined outside of the context of this DF.
Fields:
* centerPoint [**CartesianPosition3d**](#CartesianPosition3d) OPTIONAL<br>
represents an optional offset point which the rectangle is centred on with respect to the reference position.
* semiLength [**StandardLength12b**](#StandardLength12b) <br>
represents half the length of the rectangle.
* semiBreadth [**StandardLength12b**](#StandardLength12b) <br>
represents half the breadth of the rectangle.
* orientation [**Wgs84AngleValue**](#Wgs84AngleValue) OPTIONAL<br>
represents the optional orientation of the lenght of the rectangle in the WGS84 coordinate system.
The specific WGS84 coordinate system is specified by the corresponding standards applying this DE.
* height [**StandardLength12b**](#StandardLength12b) OPTIONAL<br>
represents the optional height, present if the shape is a right rectangular prism with height extending in the positive z-axis.
**Categories**: GeoReference information
**Revision**: _created in V2.1.1_
```asn1
RectangularShape ::= SEQUENCE {
centerPoint CartesianPosition3d OPTIONAL,
semiLength StandardLength12b,
semiBreadth StandardLength12b,
orientation Wgs84AngleValue OPTIONAL,
}
```
### <a name="ReferencePosition"></a>ReferencePosition
A position within a geographic coordinate system together with a confidence ellipse.
Fields:
* latitude [**Latitude**](#Latitude) <br>
the latitude of the geographical point.
* longitude [**Longitude**](#Longitude) <br>
the longitude of the geographical point.
* positionConfidenceEllipse [**PosConfidenceEllipse**](#PosConfidenceEllipse) <br>
the confidence ellipse associated to the geographical position.
* altitude [**Altitude**](#Altitude) <br>
the altitude and an altitude accuracy of the geographical point.
**Categories**: GeoReference information
**Revision**: _description updated in V2.1.1_
>>>
NOTE: this DE is kept for backwards compatibility reasons only. It is recommended to use the [**ReferencePositionWithConfidence**](#ReferencePositionWithConfidence) instead.
>>>
```asn1
ReferencePosition ::= SEQUENCE {
latitude Latitude,
longitude Longitude,
positionConfidenceEllipse PosConfidenceEllipse,
altitude Altitude
}
```
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### <a name="ReferencePositionWithConfidence"></a>ReferencePositionWithConfidence
A position within a geographic coordinate system together with a confidence ellipse.
It shall include the following components:
Fields:
* latitude [**Latitude**](#Latitude) <br>
the latitude of the geographical point.
* longitude [**Longitude**](#Longitude) <br>
the longitude of the geographical point.
* positionConfidenceEllipse [**PositionConfidenceEllipse**](#PositionConfidenceEllipse) <br>
the confidence ellipse associated to the geographical position.
* altitude [**Altitude**](#Altitude) <br>
the altitude and an altitude accuracy of the geographical point.
**Categories**: GeoReference information
**Revision**: _created in V2.1.1 based on @ref ReferencePosition but using @ref PositionConfidenceEllipse._
```asn1
ReferencePositionWithConfidence ::= SEQUENCE {
latitude Latitude,
longitude Longitude,
positionConfidenceEllipse PositionConfidenceEllipse,
altitude Altitude
}
```
### <a name="RestrictedTypes"></a>RestrictedTypes
This DF shall contain a list of [**StationType**](#StationType). to which a certain traffic restriction, e.g. the speed limit, applies.
**Categories**: Infrastructure information Traffic information
**Revision**: _V1.3.1_
```asn1
RestrictedTypes ::= SEQUENCE (SIZE(1..3, ...)) OF StationType
```
### <a name="RoadSegmentReferenceId"></a>RoadSegmentReferenceId
This DF represents a unique id for a road segment
Fields:
* region [**Identifier2B**](#Identifier2B) OPTIONAL<br>
the optional identifier of the entity that is responsible for the region in which the road segment is placed.
It is the duty of that entity to guarantee that the [**Id**](#Id) is unique within the region.
* id [**Identifier2B**](#Identifier2B) <br>
the identifier of the road segment
**Categories**: GeoReference information
**Revision**: _created in V2.1.1_
>>>
NOTE: when the component region is present, the RoadSegmentReferenceId is guaranteed to be globally unique.
>>>
```asn1
RoadSegmentReferenceId ::= SEQUENCE {
region Identifier2B OPTIONAL,
id Identifier2B
}
```
### <a name="SafeDistanceIndication"></a>SafeDistanceIndication
This DF provides the safe distance indication of a traffic participant with other traffic participant(s).
* subjectStation [**StationId**](#StationId) OPTIONAL<br>
optionally indicates one "other" traffic participant identified by its ITS-S.
* safeDistanceIndicator [**SafeDistanceIndicator**](#SafeDistanceIndicator) <br>
indicates whether the distance between the ego ITS-S and the traffic participant(s) is safe.
If subjectStation is present then it indicates whether the distance between the ego ITS-S and the traffic participant indicated in the component subjectStation is safe.
* timeToCollision [**DeltaTimeTenthOfSecond**](#DeltaTimeTenthOfSecond) OPTIONAL<br>
optionally indicated the time-to-collision calculated as sqrt(LaDi<sup>2</sup> + LoDi<sup>2</sup> + VDi<sup>2</sup>)/relative speed
and represented in the nearest 100 ms. This component may be present only if subjectStation is present.
**Categories**: Traffic information Kinematics information
**Revision**: _created in V2.1.1_
>>>
NOTE: the abbreviations used are Lateral Distance (LaD), Longitudinal Distance (LoD) and Vertical Distance (VD)
and their respective thresholds, Minimum Safe Lateral Distance (MSLaD), Minimum Safe Longitudinal Distance (MSLoD), and Minimum Safe Vertical Distance (MSVD)
>>>
```asn1
SafeDistanceIndication ::= SEQUENCE {
safeDistanceIndicator SafeDistanceIndicator,
timeToCollision DeltaTimeTenthOfSecond OPTIONAL,
...
}
```
### <a name="SequenceOfCartesianPosition3d"></a>SequenceOfCartesianPosition3d
This DF shall contain a list of DF [**CartesianPosition3d**](#CartesianPosition3d).
**Categories**: GeoReference information
**Revision**: _created in V2.1.1_
```asn1
SequenceOfCartesianPosition3d ::= SEQUENCE (SIZE(1..16, ...)) OF CartesianPosition3d
```
### <a name="SequenceOfIdentifier1B"></a>SequenceOfIdentifier1B
The DF contains a list of DE [**Identifier1B**](#Identifier1B).
**Categories**: Basic information
**Revision**: _created in V2.1.1_
```asn1
SequenceOfIdentifier1B ::= SEQUENCE SIZE(1..128, ...) OF Identifier1B
```
### <a name="SequenceOfSafeDistanceIndication"></a>SequenceOfSafeDistanceIndication
The DF contains a list of DF [**SafeDistanceIndication**](#SafeDistanceIndication).
**Categories**: Traffic information Kinematics information
**Revision**: _created in V2.1.1_
```asn1
SequenceOfSafeDistanceIndication ::= SEQUENCE(SIZE(1..8,...)) OF SafeDistanceIndication
```
### <a name="SequenceOfTrajectoryInterceptionIndication"></a>SequenceOfTrajectoryInterceptionIndication
The DF shall contain a list of DF [**TrajectoryInterceptionIndication**](#TrajectoryInterceptionIndication).
**Categories**: Traffic information Kinematics information
**Revision**: _created in V2.1.1_
```asn1
SequenceOfTrajectoryInterceptionIndication ::= SEQUENCE (SIZE(1..8,...)) OF TrajectoryInterceptionIndication
```
### <a name="Shape"></a>Shape
This DF provides the definition of a geographical area or volume, based on different options.
* rectangular [**RectangularShape**](#RectangularShape) <br>
definition of an rectangular area or a right rectangular prism (with a rectangular base) also called a cuboid, or informally a rectangular box.
* circular [**CircularShape**](#CircularShape) <br>
definition of an area of circular shape or a right circular cylinder.
* polygonal [**PolygonalShape**](#PolygonalShape) <br>
definition of an area of polygonal shape or a right prism.
* elliptical [**EllipticalShape**](#EllipticalShape) <br>
definition of an area of elliptical shape or a right elliptical cylinder.
* radial [**RadialShape**](#RadialShape) <br>
definition of a radial shape.
* radialShapes [**RadialShapes**](#RadialShapes) <br>
**Categories**: GeoReference information
**Revision**: _Created in V2.1.1_
```asn1
Shape::= CHOICE {
rectangular RectangularShape,
circular CircularShape,
polygonal PolygonalShape,
elliptical EllipticalShape,
radial RadialShape,
radialShapes RadialShapes,
...
}
```
### <a name="Speed"></a>Speed
This DF represents the speed and associated confidence value.
Fields:
* speedValue [**SpeedValue**](#SpeedValue) <br>
the speed value.
* speedConfidence [**SpeedConfidence**](#SpeedConfidence) <br>
**Categories**: Kinematics information
**Revision**: _V1.3.1_
```asn1
Speed ::= SEQUENCE {
speedValue SpeedValue,
speedConfidence SpeedConfidence
}
```
### <a name="StabilityChangeIndication"></a>StabilityChangeIndication
This DF provides the indication of change in stability.
Fields:
* lossProbability [**StabilityLossProbability**](#StabilityLossProbability) <br>
the probability of stability loss.
* actionDeltaTime [**DeltaTimeTenthOfSecond**](#DeltaTimeTenthOfSecond) <br>
the period over which the the probability of stability loss is estimated.
**Categories**: Kinematics information
**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.
7899
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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="TrailerPresenceInformation"></a>TrailerPresenceInformation
This DE provides information about the presence of a trailer.
The value shall be set to:
- 0 `noTrailerPresent` : to indicate that no trailer is present, i.e. either the vehicle is physically not enabled to tow a trailer or it has been detected that no trailer is present.
- 1 `trailerPresentWithKnownLength` : to indicate that a trailer has been detected as present and the length is included in the vehicle length value.
- 2 `trailerPresentWithUnknownLength` : to indicate that a trailer has been detected as present and the length is not included in the vehicle length value.
- 3 `trailerPresenceIsUnknown` : to indicate that information about the trailer presence is unknown, i.e. the vehicle is physically enabled to tow a trailer but the detection of trailer presence/absence is not possible.
- 4 `unavailable` : to indicate that the information about the presence of a trailer is not available, i.e. it is neither known whether the vehicle is able to tow a trailer
nor the detection of trailer presence/absence is possible.
**Categories**: Vehicle information
**Revision**: _Created in V2.1.1 based on VehicleLengthConfidenceIndication_
```asn1
TrailerPresenceInformation ::= ENUMERATED {