Documentation update

```asn1

c-DenmTgt-BeaconCommon    IdDenmTgt ::= 0

c-DenmTgt-StaticCommon    IdDenmTgt ::= 1

c-DenmTgt-IncDistanceAndTrafficDirection IdDenmTgt ::=2

c-DenmTgt-SecurityCommon  IdDenmTgt ::= 3

c-DenmTgt-TrafficCondition-SuddenSpeedDrop IdDenmTgt ::= 4

c-DenmTgt-TrafficCondition-LocalSlowDown     IdDenmTgt ::= 5

c-DenmTgt-DangerousSituation-Eebl  IdDenmTgt ::= 6

c-DenmTgt-IncDistanceBetweenEventAndReportingStationPositions IdDenmTgt ::= 7

c-DenmTgt-TimeChangeInRepetitions    IdDenmTgt ::= 2

c-DenmTgt-IncTimeAndDuration      IdDenmTgt ::= 3

c-DenmTgt-SecurityCommon  IdDenmTgt ::= 4

c-DenmTgt-TrafficCondition-SuddenSpeedDrop IdDenmTgt ::= 5

c-DenmTgt-TrafficCondition-LocalSlowDown     IdDenmTgt ::= 6

c-DenmTgt-DangerousSituation-Eebl  IdDenmTgt ::= 7

c-DenmTgt-IncDistanceBetweenEventAndReportingStationPositions IdDenmTgt ::= 8

```

### <a name="SetMbObsDenmBeacon"></a>SetMbObsDenmBeacon

  obs-Static-Change,

  ...

}

```

### <a name="SetMbObsDenmTimeChangeInRepetitions"></a>SetMbObsDenmTimeChangeInRepetitions

This is a set of observations for the target class c-DenmTgt-TimeChangeInRepetitions,

 where the trigger conditions for different observations are as follows.

   - @param Time-Change-In-Repetitions: Any change in the value of the detectionTime field which happens during the repetition of the same event (same actionId 

 and referenceTime) transmitted by the same ITS station (stationId).

```asn1

SetMbObsDenmTimeChangeInRepetitions C-ASR-SINGLE-OBS ::= {

  obs-Time-Change-In-Repetitions,

  ...

}

```

### <a name="SetMbObsDenmIncDistanceAndTrafficDirection"></a>SetMbObsDenmIncDistanceAndTrafficDirection

### <a name="SetMbObsDenmIncTimeAndDuration"></a>SetMbObsDenmIncTimeAndDuration

This is a set of observations for the target class c-DenmTgt-IncTimeAndDuration,

 where the trigger conditions for different observations are as follows.

   - @param UnplausibleReferenceTime: The reference time in the Management container of the DENM is greater than the current time 

      of the receiving ITS-S.

   - @param UnplausibleDetectionTime: The detection time in the Management container of the DENM is greater than the current time 

      of the receiving ITS-S.

   - @param ExceededEventValidityTime: The expiration time of the DENM event calculated by adding the Detection Time and the Validity Duration time 

     in the Management container of the DENM is smaller than the current time of the receiving ITS-S.

Values:

* **obs-DirectionNotUpstream** |<br>

* **obs-UnplausibleReferenceTime** |<br>

* **obs-UnplausibleDetectionTime** |<br>

```asn1

SetMbObsDenmIncDistanceAndTrafficDirection C-ASR-SINGLE-OBS ::= {

  obs-DirectionNotUpstream |

  obs-DirectionNotDownstream,

SetMbObsDenmIncTimeAndDuration C-ASR-SINGLE-OBS ::= {

  obs-UnplausibleReferenceTime |

  obs-UnplausibleDetectionTime |

  obs-ExceededEventValidityTime,

  ...

}

```

### <a name="SetMbObsDenmIncDistanceBetweenEventAndReportingStationPositions"></a>SetMbObsDenmIncDistanceBetweenEventAndReportingStationPositions

This is a set of observations for the target class c-DenmTgt-IncDistanceBetweenEventAndReportingStationPositions,

 where the trigger conditions for different observations are as follows.

  - @param DistanceBetweenPositionInDenmAndLdmTooLarge : The distance between the eventPosition of the DENM transmitted by the ITS-S 

    and the referencePosition received in the last CAM received from that ITS-S (i.e. same stationId) stored in the LDM as defined in ETSI TS 103 938 [[i.13]](#references) is larger than a maximum distance 

    threshold. This threshold is set to 1 km if the event type is one of the following: dangerousEndOfQueue or trafficCondition.The threshold is set to 100 m if the event type (causeCode) is

    one of the following:  stationaryVehicle,  emergencyVehicleApproaching, collisionRisk, dangerousSitiation.

    This distance may be calculated as the euclidean distance between the two points or preferrably as the distance of the two points using their (longitude, latitude)

    in radians on a sphere of radius r = 6 378 137 metres (ref [Kells, Lyman M.; Kern, Willis F.; Bland, James R. (1940). Plane And Spherical Trigonometry. McGraw Hill Book Company, Inc. pp. 323-326])  

    This detector shall only apply if the generationDeltaTime in the CAM Payload verifies one of the following conditions:  

         - The generationDeltaTime is higher than the (referenceTime – 1000) mod 65,536 and the value of (generationDeltatTime – (referenceTime -1000) mod 65,536) 

           is lower than 1000 (unit in millisecond). 

         - The generationDeltaTime is lower than the (referenceTime – 1000) mod 65,536 and the value of (generationDeltatTime - (referenceTime – 1000)  mod 65,536 + 65,536) 

           is lower than 1000 (unit in millisecond).

  - @param DistanceBetweenPositionInDenmAndCamTooLarge:  The cause code choice in the DENM is either trafficCondition1 or dangerousEndOfQueue27 and

    the distance between the eventPosition of the DENM transmitted by the ITS-S and the referencePosition received in the next CAM 

    received from that ITS-S (i.e. same stationId) is larger than a maximum distance of 600 meters.

    This distance may be calculated as the euclidean distance between the two points or preferrably as the distance of the two points using their (longitude, latitude)

    in radians on a sphere of radius r = 6 378 137 metres (ref [Kells, Lyman M.; Kern, Willis F.; Bland, James R. (1940). Plane And Spherical Trigonometry. McGraw Hill Book Company, Inc. pp. 323-326])  

    This detector shall only apply if the generationDeltaTime in the CAM Payload verifies one of the following conditions: 

       -	The generationDeltaTime is higher than the (referenceTime mod 65,536) and the (generationDeltatTime - referenceTime mod 65,536) is lower than

         1000 (unit in millisecond).

       -	The generationDeltaTime is lower than the (referenceTime mod 65,536) and the value of (generationDeltatTime - referenceTime mod 65,536 + 65,536)

         is lower than 1000 (unit in millisecond).

Values:

* **obs-DistanceBetweenPositionInDenmAndLdmTooLarge** |<br>

   - @param DistanceIncWithSuddenSpeedDrop:  The awarenessDistance is not present or its value is not set to lessThan1000m (4).

   - @param DirectionNotUpstream: The trafficDirection is inconsistent with the traffic direction specified as upstream direction for this event type.

Values:

* **obs-RoadTypeIncWithSuddenSpeedDrop** |<br>

* **obs-ValidityDurationIncWithSuddenSpeedDrop** |<br>

* **obs-AwarenessDistanceIncWithSuddenSpeedDrop** |<br>

```asn1

SetMbObsDenmTrafficCondition-SuddenSpeedDrop C-ASR-SINGLE-OBS ::= {

  obs-RoadTypeIncWithSuddenSpeedDrop |

  obs-ValidityDurationIncWithSuddenSpeedDrop |

  obs-AwarenessDistanceIncWithSuddenSpeedDrop,

  obs-AwarenessDistanceIncWithSuddenSpeedDrop |

  obs-DirectionIncWithSuddenSpeedDrop,

  ...

}

```

   - @param CamSpeedIncWithLocalSlowDown : The following trigger conditions shall be verified: the component 'termination' in the management container 

     of the suspected DENM shall not be equal to isCancellation(0) or isNegation(1) and the speed value in the next CAM transmitted 

     by the DENM-originating ITS-S (i.e. same stationId), in the time interval comprised between referenceTime and referenceTime + 1 second, 

     has a speed higher than the eventSpeed contained in that DENM.

     has a speed higher than twice the eventSpeed contained in that DENM.

     The CAM timestamp (generationDeltaTime) shall verify one of the following conditions: 

       -	The generationDeltaTime is higher than the (referenceTime mod 65,536) and the (generationDeltatTime - referenceTime mod 65,536) is lower than

         1000 (unit in millisecond).

       -	The generationDeltaTime is lower than the (referenceTime mod 65,536) and the value of (generationDeltatTime - referenceTime mod 65,536 + 65,536)

         is lower than 1000 (unit in millisecond).

   - @param DirectionNotUpstream: The trafficDirection is inconsistent with the traffic direction specified as upstream direction for this event type.

Values:

* **obs-RoadTypeIncWithLocalSlowDown** |<br>

* **obs-PathChangeInMultipleRepetitions** |<br>

* **obs-ValidityDurationIncWithLocalSlowDown** |<br>

* **obs-AwarenessDistanceIncWithLocalSlowDown** |<br>

* **obs-CamSpeedIncWithLocalSlowDown** |<br>

```asn1

SetMbObsDenmTrafficCondition-LocalSlowDown C-ASR-SINGLE-OBS ::= {

  obs-RoadTypeIncWithLocalSlowDown |

  obs-PathChangeInMultipleRepetitions |

  obs-ValidityDurationIncWithLocalSlowDown |

  obs-AwarenessDistanceIncWithLocalSlowDown |

  obs-CamSpeedIncWithLocalSlowDown,

  obs-CamSpeedIncWithLocalSlowDown |

  obs-DirectionIncWithLocalSlowDown,

  ...

}

```

   - @param EeblIncWithOtherVehiclesSpeed: the speed values of all CAMs sent by ITS-S stations of stationType =passengerCar(5) in the circular area with center point

     equal to eventPosition and radius equal to 200 m (urban road) or equal to 100m (non-urban or unkwown)

     are all higher than the eventSpeed in the DENM.

   - @param: EeblEventSpeedbelowMinThreshold: The stationType is indicating a motorcycle (4) or a passengerCar (5) 

     and the speed of the vehicle in the DENM (eventSpeed) is lower than the minEeblSpeedThreshold set to 20 km/h.

Values:

* **obs-EeblMissingLocationInformation** |<br>

* **obs-EeblIncWithOtherVehiclesSpeed** |<br>

```asn1

SetMbObsDenmDangerousSituation-Eebl C-ASR-SINGLE-OBS ::= {

  obs-EeblMissingLocationInformation |

  obs-EeblIncWithOtherVehiclesSpeed,

  obs-EeblIncWithOtherVehiclesSpeed |

  obs-EeblEventSpeedBelowMinThreshold,

  ...

}

```

    c-DenmTgt-BeaconCommon} |

  {MbSingleObservation{{SetMbObsDenmStatic}}   BY 

    c-DenmTgt-StaticCommon} |

  {MbSingleObservation{{SetMbObsDenmIncDistanceAndTrafficDirection}} BY 

    c-DenmTgt-IncDistanceAndTrafficDirection} |

  {MbSingleObservation{{SetMbObsDenmTimeChangeInRepetitions}}   BY 

    c-DenmTgt-TimeChangeInRepetitions} |

  {MbSingleObservation{{SetMbObsDenmIncTimeAndDuration}}   BY 

    c-DenmTgt-IncTimeAndDuration} |

  {MbSingleObservation{{SetMbObsDenmSecurity}} BY 

    c-DenmTgt-SecurityCommon} |

  {MbSingleObservation{{SetMbObsDenmTrafficCondition-SuddenSpeedDrop}}    BY 

}

```

### <a name="DistanceAndTrafficDirection-DirectionNotUpstream"></a>DistanceAndTrafficDirection-DirectionNotUpstream

This data type is provided for an observation of an unplausible awareness distance or traffic direction in the management

 container in the DENM transmitted by the ITS-S.

### <a name="TimeChangeInRepetitions-IncTimeInRepetitions"></a>TimeChangeInRepetitions-IncTimeInRepetitions

This data type is provided for an observation of change of the detection time or of the event termination fields

 in two successive, repeated DENM messages, i.e. transmitted by the same stationId with the same actionId and same detectionTime.

 The semantics of the `BIT STRING` are provided in the application-specific files.

   - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to

 the PDU whose trafficDirection value is inconsistent with the event type which requires that trafficDirection value is set to upstream.

 the PDU whose detection time or termination since the previous PDU is being flagged as changed.

 The `v2xPdus` field in that entry must contain at least the subject PDU

 and the PDU that immediately preceded it.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

   - `nonV2xPduEvidence`: No other evidence is required to be included 

 to support this observation.

```asn1

DistanceAndTrafficDirection-DirectionNotUpstream ::= NULL

c-ObsDirectionNotUpstream IdMbObs::=1  

obs-DirectionNotUpstream C-ASR-SINGLE-OBS ::= {

    DistanceAndTrafficDirection-DirectionNotUpstream BY c-ObsDirectionNotUpstream 

TimeChangeInRepetitions-IncTimeInRepetitions ::= NULL

 c-ObsIncTimeInRepetitions  IdMbObs::= 1 

 obs-Time-Change-In-Repetitions C-ASR-SINGLE-OBS ::= {

  TimeChangeInRepetitions-IncTimeInRepetitions BY c-ObsIncTimeInRepetitions

}

```

### <a name="DistanceAndTrafficDirection-DirectionNotDownstream"></a>DistanceAndTrafficDirection-DirectionNotDownstream

### <a name="IncTimeAndDuration-UnplausibleReferenceTime"></a>IncTimeAndDuration-UnplausibleReferenceTime

This data type is provided for an observation of a referenceTime in the DENM which value is in the future (i.e. is greater than 

 the current time of the receiving ITS-S).

 - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to the PDU whose field referenceTime in the Management container

 is greater than the current time.

 The `v2xPdus` field in that entry must contain at least the subject PDU.

 The PDU shall be of type `ObsPduEtsiGn`.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

```asn1

DistanceAndTrafficDirection-DirectionNotDownstream ::= NULL

c-ObsDirectionNotDownstream IdMbObs::=2  

  obs-DirectionNotDownstream C-ASR-SINGLE-OBS ::= {

    DistanceAndTrafficDirection-DirectionNotDownstream BY c-ObsDirectionNotDownstream

  }

IncTimeAndDuration-UnplausibleReferenceTime  ::= NULL

c-ObsUnplausibleReferenceTime 	IdMbObs::= 1 

obs-UnplausibleReferenceTime C-ASR-SINGLE-OBS ::=

{IncTimeAndDuration-UnplausibleReferenceTime BY c-ObsUnplausibleReferenceTime}

```

### <a name="IncTimeAndDuration-UnplausibleDetectionTime"></a>IncTimeAndDuration-UnplausibleDetectionTime

This data type is provided for an observation of a detectionTime in the DENM which value is in the future (i.e. is greater than 

 the current time of the receiving ITS-S).

 - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to the PDU whose field detectionTime in the Management container

 is greater than the current time.

 The `v2xPdus` field in that entry must contain at least the subject PDU.

 The PDU shall be of type `ObsPduEtsiGn`.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

```asn1

IncTimeAndDuration-UnplausibleDetectionTime  ::= NULL

c-ObsUnplausibleDetectionTime 	IdMbObs::= 2 

obs-UnplausibleDetectionTime C-ASR-SINGLE-OBS ::=

{IncTimeAndDuration-UnplausibleDetectionTime BY c-ObsUnplausibleDetectionTime}

```

### <a name="IncTimeAndDuration-ExceededEventValidityTime"></a>IncTimeAndDuration-ExceededEventValidityTime

This data type is provided for an observation of a validity Time (calculated as DetectionTime + ValidityDuration) in the DENM which value is 

 in the past future (i.e. is smaller than the current time of the receiving ITS-S).

 - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to the PDU whose value of DetectionTime + ValidityDuration

 is smaller than the current time.

 The `v2xPdus` field in that entry must contain at least the subject PDU.

 The PDU shall be of type `ObsPduEtsiGn`.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

```asn1

IncTimeAndDuration-ExceededEventValidityTime  ::= NULL

c-ObsExceededEventValidityTime 	IdMbObs::= 3 

obs-ExceededEventValidityTime C-ASR-SINGLE-OBS ::=

{IncTimeAndDuration-ExceededEventValidityTime BY c-ObsExceededEventValidityTime}

```

### <a name="DistanceBetweenPositionInDenmAndLdmTooLarge"></a>DistanceBetweenPositionInDenmAndLdmTooLarge

 {TrafficCondition-AwarenessDistanceIncWithSuddenSpeedDrop BY c-ObsAwarenessDistanceIncWithSuddenSpeedDrop}

```

### <a name="TrafficCondition-DirectionIncWithSuddenSpeedDrop"></a>TrafficCondition-DirectionIncWithSuddenSpeedDrop

This data type is provided for an observation of a traffic direction not set to upstream () in the management

 container in the DENM transmitted by the ITS-S.

   - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to

 the PDU whose trafficDirection value is inconsistent with the event type which requires that trafficDirection value is set to upstream.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

```asn1

TrafficCondition-DirectionIncWithSuddenSpeedDrop ::= NULL

c-ObsDirectionIncWithSuddenSpeedDrop IdMbObs::= 4  

obs-DirectionIncWithSuddenSpeedDrop C-ASR-SINGLE-OBS ::= 

{TrafficCondition-DirectionIncWithSuddenSpeedDrop BY c-ObsDirectionIncWithSuddenSpeedDrop}

```

### <a name="TrafficCondition-RoadTypeIncWithLocalSlowDown"></a>TrafficCondition-RoadTypeIncWithLocalSlowDown

This data type is provided for an observation of a road type inconsistent with 

 the detected TrafficCondition - Local slow down event

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to the PDU whose path points registered in the first entry Traces[[1]](#references)

 of the detectionZonesToEventPosition component is not containing the same list of pathPoints than in the 

 first entry of traces in the previous PDU. 

 The `v2xPdus` field in that entry must contain at least the subject PDU.

 The `v2xPdus` field in that entry must contain at least the subject PDU

 and the PDU that immediately preceded it.

 The PDU shall be of type `ObsPduEtsiGn`.

   - `nonV2xPduEvidence`: No other evidence is required to be included 

}

```

### <a name="TrafficCondition-DirectionIncWithLocalSlowDown"></a>TrafficCondition-DirectionIncWithLocalSlowDown

This data type is provided for an observation of a traffic direction not set to upstream () in the management

 container in the DENM transmitted by the ITS-S.

   - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to

 the PDU whose trafficDirection value is inconsistent with the event type which requires that trafficDirection value is set to upstream.

   - `nonV2xPduEvidence`: No other evidence is required to be included to support this observation.

```asn1

TrafficCondition-DirectionIncWithLocalSlowDown ::= NULL

c-ObsDirectionIncWithLocalSlowDown IdMbObs::= 6  

obs-DirectionIncWithLocalSlowDown C-ASR-SINGLE-OBS ::= 

{TrafficCondition-DirectionIncWithLocalSlowDown BY c-ObsDirectionIncWithSuddenSpeedDrop}

```

### <a name="Eebl-MissingLocationInformation"></a>Eebl-MissingLocationInformation

This data type is provided for an observation of an Eebl event which does not provide

 mandatory location information (eventSpeed, eventPositionHeading, traces).

 {Eebl-IncWithOtherVehiclesSpeed BY c-ObsEeblIncWithOtherVehiclesSpeed}

```

### <a name="Eebl-EventSpeedBelowMinThreshold"></a>Eebl-EventSpeedBelowMinThreshold

This data type is provided for an observation of an Eebl event generated by a motorcycle 

 or passenger vehicle whose eventSpeed is below the minimum speed for triggering 

 an emergency brake. 

   - `v2xPduEvidence`: This field must contain at least one entry.

 The observation applies to the first entry. The `subjectPduIndex` 

 in that [**V2xPduStream**](EtsiTs103759BaseTypes.md#V2xPduStream) points to

 the PDU whose location information is missing.

 The `v2xPdus` field in that entry must contain at least the subject PDU.

 The PDU shall be of type `ObsPduEtsiGn`.

   - `nonV2xPduEvidence`: No other evidence is required to be included 

 to support this observation.

```asn1

Eebl-EventSpeedBelowMinThreshold ::= NULL

c-ObsEeblEventSpeedBelowMinThreshold  IdMbObs::= 3 

obs-EeblEventSpeedBelowMinThreshold C-ASR-SINGLE-OBS ::= 

  {Eebl-EventSpeedBelowMinThreshold BY c-ObsEeblEventSpeedBelowMinThreshold}

```