SAREF4AUTO: an extension of SAREF for the automotive domain

the class of acoustic sensors

A device used to wirelessly communicate with other devices for safety and mobility purposes.

The main objects of interest in the automotive domain.

The class of properties whose value (saref:hasValue) is typically expressed as a xsd:boolean literal

Describes the act of a VRU leader carrying out a procedure to breakup a VRU cluster. It is linked to the VRU cluster using OP saref:targets. DP saref:resultTime indicates the time of breakup. OP saref:hasResult, if present, indicates the reason for breakup.

This class indicates the reasons why a cluster leader intends to break up a VRU cluster.

The following instances are defined:

- s4auto:ClusterBreakupReason_`clusteringPurposeCompleted - the cluster purpose has been completed,
- s4auto:ClusterBreakupReason_leaderMovedOutOfClusterBoundingBox - the leader moved out of the cluster's bounding box,
- s4auto:ClusterBreakupReason_joiningAnotherCluster - the cluster leader is about to join another cluster,
- s4auto:ClusterBreakupReason_enteringLowRiskAreaBasedOnMaps - the cluster is entering an area idenrified as low risk based on the use of maps,
- s4auto:ClusterBreakupReason_receptionOfCpmContainingCluster - the leader received a Collective Perception Message containing information about the same cluster.

Describes the act of a VRU carrying out a procedure to join a VRU cluster. It is linked to the VRU that joins the cluster using OP s4auto:madeBy, and to the VRU cluster using OP saref:targets. DP saref:resultTime indicates the time of joining. Typically, a s4auto:ClusterJoin has no saref:hasResult.

Describes the act of a VRU cluster participant carrying out a procedure to leave a VRU cluster. It is linked to the VRU cluster using OP saref:targets. DP saref:resultTime indicates the time of leaving. OP saref:hasResult, if present, indicates the reason reason why a cluster participant is leaving the cluster.

This property indicates the reason why a cluster participant is leaving the cluster.

The following instances values are defined:
- s4auto:ClusterLeaveReason_clusterLeaderLost - if the cluster leader cannot be found anymore,
- s4auto:ClusterLeaveReason_clusterDisbandedByLeader - if the cluster has been disbanded by the leader,
- s4auto:ClusterLeaveReason_outOfClusterBoundingBox - if the participants moved out of the cluster's bounding box,
- s4auto:ClusterLeaveReason_outOfClusterSpeedRange - if the cluster speed moved out of a defined range,
- s4auto:ClusterLeaveReason_joiningAnotherCluster - if the participant is joining another cluster,
- s4auto:ClusterLeaveReason_cancelledJoin - if the participant is cancelling a joining procedure,
- s4auto:ClusterLeaveReason_failedJoin - if the participant failed to join the cluster,
- s4auto:ClusterLeaveReason_safetyCondition - if a safety condition applies.

Describes the confidence value of a property value, which represents the estimated accuracy of the value with a certain confidence level (property s4auto:hasConfidenceLevel). In such situation, the value of the property value (saref:hasValue) can be estimated as the mean of the current distribution.

Describes the confidence value of a property value, which represents the estimated accuracy of the value with a confidence level of 95 %. In such situation, the value of the property value (saref:hasValue) can be estimated as the mean of the current distribution.

Kind of dangerous goods being carried by a heavy vehicle.
narrower kinds are defined according to `class` and `division` definitions of dangerous goods as specified in part II,
chapter 2.1.1.1 of European Agreement concerning the International Carriage of Dangerous Goods by Road."@en ;
skos:historyNote "Adapted from ETSI TS 102 894-2 - ITS Common Data Dictionary (CDD) V2.1.1: DangerousGoods

The class of properties whose value (saref:hasValue) is typically expressed as a xsd:decimal literal

The class of properties whose values (saref:PropertyValue) are organized in a sequence using an index (defined using s4auto:hasIndex).

the class of induction loop sensors

The class of properties whose value (saref:hasValue) is typically expressed as a xsd:integer literal

the class of systems that aggregate information from other received ITS messages.

the class of lidar sensors

the class of systems that aggregate information from different local sensors. Aggregation may include fusion

the class of mono video sensors

the class of night vision sensors

A location that is designated for parking. A parking spot is a geo:Feature and can thus have a geometry.

A platoon is a group of vehicles automatically following each other at a relatively close distance

Describes the act of a platoon leader carrying out a procedure to breakup a platoon. It is linked to the platoon using OP saref:targets. DP saref:resultTime indicates the time of breakup.

Describes the act of a vehicle carrying out a procedure to join a platoon. It is linked to the vehicle that joins the platoon using OP s4auto:madeBy, and to the platoon using OP saref:targets. DP saref:resultTime indicates the time of joining. OP saref:resultPosition indicates the position where the vehicle member joins the platoon. Typically, a s4auto:PlatoonJoin has no saref:hasResult.

Describes the act of a platoon participant carrying out a procedure to leave a platoon. It is linked to the platoon using OP saref:targets. DP saref:resultTime indicates the time of leaving.

the class of photonic mixing device sensors

the class of radar sensors

Devices deployed along the road that produce signals based on road side sensor data measurements. Types of road side actuators that are relevant are devices such as traffic light controllers changing from red to green based on detected vehicles.

A road side equipment can be either a simple data relay between vehicles and infrastructure or between the vehicles themselves, or it can run applications. It is usually high mounted in existing equipment, such as a street light, city traffic light, VMS or highway sign, or has its own pole.

Includes the ITS-C road side units and other ITS field equipment (includes traffic signal controllers).

Sensors such as cameras, radars that are deployed along the road (e.g. at intersections and at poles along a highway). Road side sensors perform measurements, such as speed, position (relative or absolute), dimension, direction, etc. of road objects.

A transportation infrastructure communications device located on the roadside that provides V2X connectivity between On Board Units/Mobile Units and other parts of the transportation infrastructure including traffic control devices, traffic management systems, and back-office systems.

Note: Devices that are not part of the transportation infrastructure, such as cellular base stations or satellites, are not Road Side Units.

the class of spherical camera sensors

the class of stereo vision sensors

The class of properties whose value (saref:hasValue) is typically expressed as a xsd:string literal

The class of traffic direction in which observed traffic events are detected.

The following instances are defined:

- s4auto:TrafficDirection_allTrafficDirections - for all traffic directions,
- s4auto:TrafficDirection_upstreamTraffic - for upstream traffic,
- s4auto:TrafficDirection_downstreamTraffic - for downstream traffic,
- s4auto:TrafficDirection_oppositeTraffic - for traffic in the opposite direction.

The terms `upstream`, `downstream` and `oppositeTraffic` are relative to the event position.

Class of concepts that describe traffic event causes.

The traffic event cause is completely defined by the top-level concepts. Narrower concepts may provide additional information that is not strictly necessary.

Act of carrying an observation resulting in a traffic event description. OP saref:hasResult links to the cause of the traffic event. OP saref:observes links to the direction and traffic direction where the event occurred.

A device that automatically operates coloured lights, typically red, amber, and green, for controlling traffic at road junctions, pedestrian crossings, and roundabouts.

A traffic centre provides services to road users: exploiting data for road traffic management, providing information about mobility zones, operational management of the road infrastructure, etc.

Traffic participants include vehicles of different kinds, vulnerable road users such as pedestrians and cyclists, road side units.

Non-self propelled vehicle that is designed and constructed to be towed by a power driven vehicle as defined in UNECE/TRANS/WP.29/78/Rev.4 class O

the class of ultrasonic sensors

the class of ultra wide band sensors

A Vulnerable Road User (VRU) cluster is a group of VRUs with a homogeneous behaviour (see ETSI TS 103 300-2), where VRU awareness messages (VAM) related to the VRU cluster provide information about the entire cluster. Within a VRU cluster, VRU devices take the role of either leader (one per cluster) or member.

A VRU Cluster may have a geometry as a bounding box.

A cluster may contain VRU devices of multiple profiles. A cluster is referred to as "homogeneous" if it contains devices of only one profile, and "heterogeneous" if it contains VRU devices of more than one profile (e.g. a mixed group of pedestrians and bicyclists).

Self-propelled transport device, along with any attachments, e.g. trailers, that is a legal user of the transportation network (Source: ISO/TS 19091:2019(en)).

Archetype of vulnerable road users, which are non-motorized road users as well as users of VRU vehicles (L class of vehicles, for example mopeds or motorcycles, etc.) participating to the road traffic.

Links a traffic event observation to which traffic direction the observed event affects.

Associates a confidence value which represents the estimated accuracy of the value with a certain confidence level (property s4auto:hasConfidenceLevel). In such situation, the value of the property value (saref:hasValue) can be estimated as the mean of the current distribution.

contact phone number of assistance service in case of incident or accident.
This component should be represented as a IRI with the tel: schema, following RFC 3966.

Links a procedure execution to the position where the activity was completed, expressed as a value of property s4auto:Position.

Links a composite property or property value to its individual components.

Associates a confidence level (a decimal value between 0 and 1) to an observation, a property value, or a confidence value.

Company that manages the transportation of the dangerous goods.

physical signage placard at the vehicle that carries information on how an emergency
service should deal with an incident.

The substance of the dangerous goods. An individual with identifier as specified in
United Nations Recommendations on the Transport of Dangerous Goods - Model Regulations

Links a property value of an indexed property to its index (an xsd:integer) such that it is organized in a sequence.

Links automotive objects to their identifier as defined in ETSI TS 102 894-2.

A universally unique identifier (UUID) is a 128-bit number used to identify items and is also known as: globally unique identifier (GUID). In its canonical textual representation, the sixteen octets of a UUID are represented as 32 hexadecimal (base 16) digits, displayed in five groups separated by hyphens, in the form 8-4-4-4-12 for a total of 36 characters (32 alphanumeric characters and four hyphens). UUID are documented in ISO/IEC 11578:1996 "Information technology – Open Systems Interconnection – Remote Procedure Call (RPC)" and in ITU-T Rec. X.667 ISO/IEC 9834-8:2005.

This property represents an acceleration component value in a defined coordinate system

This property represents the acceleration of an automotive object.

This property represents the acceleration of an automotive object, expressed as a acceleration vector in a cartesian coordinate system

This property represents the x component of the acceleration vector.

This property represents the y component of the acceleration vector.

This property represents the z component of the acceleration vector.

This property represents the acceleration of an automotive object, expressed in a polar or cylindrical coordinate system.

This property represents the polar angle of the acceleration vector on the reference plane.

This property represents the magnitude of the acceleration vector on the reference plane. It should be a positive value.

This property represents the z component of the acceleration vector along the reference axis of the cylindrical coordinate system.

In case the type of event is a road accident.

The following narrower traffic event causes are defined:

- s4auto:Accident_multiVehicleAccident - in case more than two vehicles are involved in accident,
- s4auto:Accident_heavyAccident - in case the airbag of the vehicle involved in the accident is triggered, the accident requires important rescue and/or recovery work,
- s4auto:Accident_accidentInvolvingLorry - in case the accident involves a lorry,
- s4auto:Accident_accidentInvolvingBus - in case the accident involves a bus,
- s4auto:Accident_accidentInvolvingHazardousMaterials - in case the accident involves hazardous material,
- s4auto:Accident_accidentOnOppositeLane - in case the accident happens on opposite lanes,
- s4auto:Accident_unsecuredAccident - in case the accident is not secured,
- s4auto:Accident_assistanceRequested - in case rescue and assistance are requested,

In case the accident involves a bus

In case the accident involves hazardous material

In case the accident involves a lorry

In case the accident happens on opposite lanes

In case rescue and assistance are requested

In case the airbag of the vehicle involved in the accident is triggered,
the accident requires important rescue and/or recovery work

In case more than two vehicles are involved in accident

In case the accident is not secured

A position defined in terms of an address. It is out of scope of SAREF4AUTO to define the details of such an address. It is instead recommended to reuse existing ontologies that specify how to model an address in terms of Street, Postal Code, City, Region, Country, etc.

In case the type of event is low adhesion.

The following narrower traffic event causes are defined:

- s4auto:AdverseWeatherCondition-Adhesion_heavyFrostOnRoad - in case the low road adhesion is due to heavy frost on the road,
- s4auto:AdverseWeatherCondition-Adhesion_fuelOnRoad - in case the low road adhesion is due to fuel on the road,
- s4auto:AdverseWeatherCondition-Adhesion_mudOnRoad - in case the low road adhesion is due to mud on the road,
- s4auto:AdverseWeatherCondition-Adhesion_snowOnRoad - in case the low road adhesion is due to snow on the road,
- s4auto:AdverseWeatherCondition-Adhesion_iceOnRoad - in case the low road adhesion is due to ice on the road,
- s4auto:AdverseWeatherCondition-Adhesion_blackIceOnRoad - in case the low road adhesion is due to black ice on the road,
- s4auto:AdverseWeatherCondition-Adhesion_oilOnRoad - in case the low road adhesion is due to oil on the road,
- s4auto:AdverseWeatherCondition-Adhesion_looseChippings - in case the low road adhesion is due to loose gravel or stone fragments detached from a road surface or from a hazard,
- s4auto:AdverseWeatherCondition-Adhesion_instantBlackIce - in case the low road adhesion is due to instant black ice on the road surface,
- s4auto:AdverseWeatherCondition-Adhesion_roadsSalted - when the low road adhesion is due to salted road,

In case the low road adhesion is due to black ice on the road

In case the low road adhesion is due to fuel on the road

In case the low road adhesion is due to heavy frost on the road

In case the low road adhesion is due to ice on the road

In case the low road adhesion is due to instant black ice on the road surface

In case the low road adhesion is due to loose gravel or stone fragments detached from a road surface or from a hazard

In case the low road adhesion is due to mud on the road

In case the low road adhesion is due to oil on the road

In case the low road adhesion is due to salted road

In case the low road adhesion is due to snow on the road

In case the type of event is extreme weather condition.

The following narrower traffic event causes are defined:

- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_strongWinds - in case the type of extreme weather condition is strong wind,
- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_damagingHail - in case the type of extreme weather condition is damaging hail,
- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_hurricane - in case the type of extreme weather condition is hurricane,
- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_thunderstorm - in case the type of extreme weather condition is thunderstorm,
- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_tornado - in case the type of extreme weather condition is tornado,
- s4auto:AdverseWeatherCondition-ExtremeWeatherCondition_blizzard - in case the type of extreme weather condition is blizzard.

In case the type of extreme weather condition is blizzard.

In case the type of extreme weather condition is damaging hail

In case the type of extreme weather condition is hurricane

In case the type of extreme weather condition is strong wind

In case the type of extreme weather condition is thunderstorm

In case the type of extreme weather condition is tornado

In case the type of event is precipitation.

The following narrower traffic event causes are defined:

- s4auto:AdverseWeatherCondition-Precipitation_heavyRain - in case the type of precipitation is heavy rain,
- s4auto:AdverseWeatherCondition-Precipitation_heavySnowfall - in case the type of precipitation is heavy snow fall,
- s4auto:AdverseWeatherCondition-Precipitation_softHail - in case the type of precipitation is soft hail.

In case the type of precipitation is heavy rain

In case the type of precipitation is heavy snow fall

In case the type of precipitation is soft hail.

In case the type of event is low visibility.

The following narrower traffic event causes are defined:

- s4auto:AdverseWeatherCondition-Visibility_fog - in case the cause of low visibility is fog,
- s4auto:AdverseWeatherCondition-Visibility_smoke - in case the cause of low visibility is smoke,
- s4auto:AdverseWeatherCondition-Visibility_heavySnowfall - in case the cause of low visibility is heavy snow fall,
- s4auto:AdverseWeatherCondition-Visibility_heavyRain - in case the cause of low visibility is heavy rain,
- s4auto:AdverseWeatherCondition-Visibility_heavyHail - in case the cause of low visibility is heavy hail,
- s4auto:AdverseWeatherCondition-Visibility_lowSunGlare - in case the cause of low visibility is sun glare,
- s4auto:AdverseWeatherCondition-Visibility_sandstorms - in case the cause of low visibility is sand storm,
- s4auto:AdverseWeatherCondition-Visibility_swarmsOfInsects - in case the cause of low visibility is swarm of insects.

In case the cause of low visibility is fog

In case the cause of low visibility is heavy hail

In case the cause of low visibility is heavy rain

In case the cause of low visibility is heavy snow fall

In case the cause of low visibility is sun glare

In case the cause of low visibility is sand storm

In case the cause of low visibility is smoke

In case the cause of low visibility is swarm of insects.

This property represents the air humidity.

Defined property value for air humidity of 100%.

Danger of aquaplaning on the road

articulatedBus vehicle kind, as defined by term No 3.1.2.5 in ISO 3833

articulatedRoadTrain vehicle kind, as defined by term No 3.3.3 in ISO 3833

A device used to wirelessly communicate with other devices for safety and mobility purposes.

The main objects of interest in the automotive domain.

The object is a bulk material.

The object is a group of multiple objects.

The object is a single object.

This property represents the measured uncompensated atmospheric pressure.

busSemiTrailer vehicle kind, as defined by term No 3.2.2.1 in ISO 3833

busTrailer vehicle kind, as defined by term No 3.2.1.1 in ISO 3833

bus vehicle kind, as defined by term No 3.1.2 in ISO 3833

caravan vehicle kind, as defined by term No 3.2.1.3 in ISO 3833

This property represents an angle described in a local Cartesian coordinate system, per default counted positive in
a right-hand local coordinate system from the abscissa.

This property represents the angular acceleration, described in a local Cartesian coordinate system, per default counted positive in a right-hand local coordinate system from the abscissa.

This property represents the angular velocity, described in a local Cartesian coordinate system, per default counted positive in a right-hand local coordinate system from the abscissa.

This property represents the position of an automotive object, expressed as a position vector in a cartesian coordinate system

This property represents the x coordinate value.

This property represents the y coordinate value.

This property represents the z coordinate value.

Definition of a circular area or a right cylinder that is centred on the shape's reference point.

Represents the height of a right cylinder extending in the positive z-axis.

Represents the radius of the circular area.

Represents the center of the base circle.

The cluster purpose has been completed

The cluster is entering an area idenrified as low risk based on the use of maps

The cluster leader is about to join another cluster

The leader moved out of the cluster's bounding box

The leader received a Collective Perception Message containing information about the same cluster.

The participant is cancelling a joining procedure

The cluster has been disbanded by the leader

The cluster leader cannot be found anymore

The participant failed to join the cluster

The participant is joining another cluster

The participants moved out of the cluster's bounding box

The cluster speed moved out of a defined range

A safety condition applies.

This property indicates if collision holds between an observer traffic participant and the traffic participant holding this property.

The value for this property is *TRUE* if the collision is expected to occur, or has occurred. The phenomenonTime indicates the time of the collision

In case the type of event is a collision risk.

The following narrower traffic event causes are defined:

- s4auto:CollisionRisk_longitudinalCollisionRisk - in case the type of detected collision risk is longitudinal collision risk, e.g. forward collision or face to face collision,
- s4auto:CollisionRisk_crossingCollisionRisk - in case the type of detected collision risk is crossing collision risk,
- s4auto:CollisionRisk_lateralCollisionRisk - in case the type of detected collision risk is lateral collision risk,
- s4auto:CollisionRisk_vulnerableRoadUser - in case the type of detected collision risk involves vulnerable road users, e.g. pedestrians or bicycles.

In case the type of detected collision risk is crossing collision risk

In case the type of detected collision risk is lateral collision risk

In case the type of detected collision risk is longitudinal collision risk,
e.g. forward collision or face to face collision

In case the type of detected collision risk involves vulnerable road users
e.g. pedestrians or bicycles.

commercialVehicle vehicle kind, as defined by term No 3.1.3 in ISO 3833

compositeRoadTrain vehicle kind, as defined by term No 3.3.5 in ISO 3833

convertibleSaloon vehicle kind, as defined by term No 3.1.1.2 in ISO 3833

convertible vehicle kind, as defined by term No 3.1.1.6 (open tourer, roadster, spider) in ISO 3833

coupe vehicle kind, as defined by term No 3.1.1.5 (coupe) in ISO 3833

This property represents the curvature of the vehicle trajectory, as the inverse of the vehicle turning curve radius.

Positive values indicate a turning curve to the left hand side of the driver.
It corresponds to the vehicle coordinate system as defined in ISO 8855.

The curvature detected by a vehicle represents the curvature of actual vehicle trajectory.

`0` when the vehicle is moving straight

In case the type of event is dangerous end of vehicle queue.

The following narrower traffic event causes are defined:

- s4auto:DangerousEndOfQueue_suddenEndOfQueue - in case a sudden end of queue is detected, e.g. due to accident or obstacle,
- s4auto:DangerousEndOfQueue_queueOverHill - in case the dangerous end of queue is detected on the road hill,
- s4auto:DangerousEndOfQueue_queueAroundBend - in case the dangerous end of queue is detected around the road bend,
- s4auto:DangerousEndOfQueue_queueInTunnel - in case queue is detected in tunnel,

In case the dangerous end of queue is detected around the road bend

In case queue is detected in tunnel

In case the dangerous end of queue is detected on the road hill

In case a sudden end of queue is detected, e.g. due to accident or obstacle

Kind of dangerous goods being carried by a heavy vehicle.
narrower kinds are defined according to `class` and `division` definitions of dangerous goods as specified in part II,
chapter 2.1.1.1 of European Agreement concerning the International Carriage of Dangerous Goods by Road."@en ;
skos:historyNote "Adapted from ETSI TS 102 894-2 - ITS Common Data Dictionary (CDD) V2.1.1: DangerousGoods

Kind of dangerous goods of type corrosiveSubstances

Kind of dangerous goods of type explosives1

Kind of dangerous goods of type explosives2

Kind of dangerous goods of type explosives3

Kind of dangerous goods of type explosives4

Kind of dangerous goods of type explosives5

Kind of dangerous goods of type explosives6

Kind of dangerous goods of type flammableGases

Kind of dangerous goods of type flammableLiquids

Kind of dangerous goods of type flammableSolids

Kind of dangerous goods of type infectiousSubstances

Kind of dangerous goods of type miscellaneousDangerousSubstances

Kind of dangerous goods of type nonFlammableGases

Kind of dangerous goods of type organicPeroxides

Kind of dangerous goods of type oxidizingSubstances

Kind of dangerous goods of type radioactiveMaterial

Kind of dangerous goods of type substancesEmittingFlammableGasesUponContactWithWater

Kind of dangerous goods of type substancesLiableToSpontaneousCombustion

Kind of dangerous goods of type toxicGases

Kind of dangerous goods of type toxicSubstances

In case the type of event is dangerous situation in which autonomous safety system in vehicle is activated.

The following narrower traffic event causes are defined:

- s4auto:DangerousSituation_emergencyElectronicBrakeEngaged - in case emergency electronic brake is engaged,
- s4auto:DangerousSituation_preCrashSystemEngaged - in case pre-crash system is engaged,
- s4auto:DangerousSituation_espEngaged - in case Electronic Stability Program (ESP) system is engaged,
- s4auto:DangerousSituation_absEngaged - in case Anti-lock Braking System (ABS) is engaged,
- s4auto:DangerousSituation_aebEngaged - in case Autonomous Emergency Braking (AEB) system is engaged,
- s4auto:DangerousSituation_brakeWarningEngaged - in case brake warning is engaged,
- s4auto:DangerousSituation_collisionRiskWarningEngaged - in case collision risk warning is engaged,

In case Anti-lock Braking System (ABS) is engaged

In case brake warning is engaged

In case collision risk warning is engaged

In case Autonomous Emergency Braking (AEB) system is engaged

In case emergency electronic brake is engaged

In case Electronic Stability Program (ESP) system is engaged

In case pre-crash system is engaged

This property defines a geographical point position as a 3 dimensional offset position to a reference point.

This property represents the reference position for a delta reference position.

doubleRoadTrain vehicle kind, as defined by term No 3.3.4 in ISO 3833

This property indicates in which direction something is moving.

The following property values are defined:

- s4auto:DriveDirection_backward - to indicate it is moving forward,
- s4auto:DriveDirection_forward - to indicate it is moving backwards

Indicates it is moving backwards

Indicates it is moving forward

This property indicates whether a driving lane is open to traffic.

If a lane is closed to traffic, the corresponding value shall be set to *TRUE*. Otherwise, it shall be set to *FALSE*.

A type pf parking spot

*TRUE* if the carried dangerous goods are transported at high temperature.

Definition of an elliptical area or right elliptical cylinder that is centred on the shape's reference point.

Represents the height of a right elliptical cylinder extending in the positive z-axis.

Represents the orientation of the major axis of the base ellipse.

Represents half length of the major axis of the base ellipse.

Represents half length of the minor axis of the base ellipse.

Represents the center of the base ellipse.

This property indicates whether a vehicle (e.g. public transport vehicle, truck) is under the embarkation process.
If that is the case, the value is *TRUE*, otherwise *FALSE*.

In case the type of event is approaching vehicle operating emergency mission.

The following narrower traffic event causes are defined:

- s4auto:EmergencyVehicleApproaching_emergencyVehicleApproaching - in case an operating emergency vehicle is approaching,
- s4auto:EmergencyVehicleApproaching_prioritizedVehicleApproaching - in case a prioritized vehicle is approaching,

In case an operating emergency vehicle is approaching

In case a prioritized vehicle is approaching

This property describes the status of some exterior light switches of a vehicle incl. VRU vehicles.

Narrower properties indicate the type of exterior light switch of interest:

- s4auto:ExteriorLights_lowBeamHeadlightsOn - *TRUE* when the low beam head light switch is on,
- s4auto:ExteriorLights_highBeamHeadlightsOn - *TRUE* when the high beam head light switch is on,
- s4auto:ExteriorLights_leftTurnSignalOn - *TRUE* when the left turnSignal switch is on,
- s4auto:ExteriorLights_rightTurnSignalOn - *TRUE* when the right turn signal switch is on,
- s4auto:ExteriorLights_daytimeRunningLightsOn - *TRUE* when the daytime running light switch is on,
- s4auto:ExteriorLights_reverseLightOn - *TRUE* when the reverse light switch is on,
- s4auto:ExteriorLights_fogLightOn - *TRUE* when the tail fog light switch is on,
- s4auto:ExteriorLights_parkingLightsOn - *TRUE* when the parking light switch is on.

*TRUE* when the daytime running light switch is on

*TRUE* when the tail fog light switch is on

*TRUE* when the high beam head light switch is on

*TRUE* when the left turn signal switch is on

*TRUE* when the low beam head light switch is on

*TRUE* when the parking light switch is on

*TRUE* when the reverse light switch is on

*TRUE* when the right turn signal switch is on

A type of platoon role

forwardControlPassengerCar vehicle kind, as defined by term No 3.1.1.8 in ISO 3833

generalPurposeSemiTrailer vehicle kind, as defined by term No 3.2.2.2 in ISO 3833

generalPurposeTrailer vehicle kind, as defined by term No 3.2.1.2 in ISO 3833

A position within a geographic coordinate system together with a confidence ellipse.
Values should be described as GeoSPARQL geometries.

A hard shoulder of a road segment. There are two main kinds of hard shoulders: inner hard shoulders, and outer hard shoulders.

This property indicates the current status of a hard shoulder: whether it is available for special usage
(e.g. for stopping or for driving) or closed for all vehicles.

The following property values are defined:
- 0 - `availableForStopping` - if the hard shoulder is available for stopping in e.g. emergency situations,
- 1 - `closed` - if the hard shoulder is closed and cannot be occupied in any case,
- 2 - `availableForDriving` - if the hard shoulder is available for regular driving.

2 - `availableForDriving` - if the hard shoulder is available for regular driving.

0 - `availableForStopping` - if the hard shoulder is available for stopping in e.g. emergency situations

1 - `closed` - if the hard shoulder is closed and cannot be occupied in any case

In case the type of event is animal on the road.

The following narrower traffic event causes are defined:

- s4auto:HazardousLocation-AnimalOnTheRoad_wildAnimals - in case wild animals are detected on the road,
- s4auto:HazardousLocation-AnimalOnTheRoad_herdOfAnimals - in case herd of animals are detected on the road,
- s4auto:HazardousLocation-AnimalOnTheRoad_smallAnimals - in case small size animals are detected on the road,
- s4auto:HazardousLocation-AnimalOnTheRoad_largeAnimals - in case large size animals are detected on the road.

In case herd of animals are detected on the road

In case large size animals are detected on the road.

In case small size animals are detected on the road

In case wild animals are detected on the road

In case the type of event is dangerous curve.

The following narrower traffic event causes are defined:

- s4auto:HazardousLocation-DangerousCurve_dangerousLeftTurnCurve - in case the dangerous curve is a left turn curve,
- s4auto:HazardousLocation-DangerousCurve_dangerousRightTurnCurve - in case the dangerous curve is a right turn curve,
- s4auto:HazardousLocation-DangerousCurve_multipleCurvesStartingWithUnknownTurningDirection - in case of multiple curves for which the starting curve turning direction is not known,
- s4auto:HazardousLocation-DangerousCurve_multipleCurvesStartingWithLeftTurn - in case of multiple curves starting with a left turn curve,
- s4auto:HazardousLocation-DangerousCurve_multipleCurvesStartingWithRightTurn - in case of multiple curves starting with a right turn curve.

The definition of whether a curve is dangerous may vary according to region and according to vehicle types/mass
and vehicle speed driving on the curve. This definition is out of scope of the present document.

In case the dangerous curve is a left turn curve

In case the dangerous curve is a right turn curve

In case of multiple curves starting with a left turn curve

In case of multiple curves starting with a right turn curve.

In case of multiple curves for which the starting curve turning direction is not known

In case the type of event is obstacle on the road.

The following narrower traffic event causes are defined:

- s4auto:HazardousLocation-ObstacleOnTheRoad_shedLoad - in case detected obstacle is large amount of obstacles (shedload),
- s4auto:HazardousLocation-ObstacleOnTheRoad_partsOfVehicles - in case detected obstacles are parts of vehicles,
- s4auto:HazardousLocation-ObstacleOnTheRoad_partsOfTyres - in case the detected obstacles are parts of tyres,
- s4auto:HazardousLocation-ObstacleOnTheRoad_bigObjects - in case the detected obstacles are big objects,
- s4auto:HazardousLocation-ObstacleOnTheRoad_fallenTrees - in case the detected obstacles are fallen trees,
- s4auto:HazardousLocation-ObstacleOnTheRoad_hubCaps - in case the detected obstacles are hub caps,
- s4auto:HazardousLocation-ObstacleOnTheRoad_waitingVehicles - in case the detected obstacles are waiting vehicles.

In case the detected obstacles are big objects

In case the detected obstacles are fallen trees

In case the detected obstacles are hub caps

In case the detected obstacles are parts of tyres

In case detected obstacles are parts of vehicles

In case detected obstacle is large amount of obstacles (shedload)

In case the detected obstacles are waiting vehicles.

In case the type of event is abnormal road surface condition.

The following narrower traffic event causes are defined:

- s4auto:HazardousLocation-SurfaceCondition_rockfalls - in case rock falls are detected on the road surface,
- s4auto:HazardousLocation-SurfaceCondition_earthquakeDamage - in case the road surface is damaged by earthquake,
- s4auto:HazardousLocation-SurfaceCondition_sewerCollapse - in case of sewer collapse on the road surface,
- s4auto:HazardousLocation-SurfaceCondition_subsidence - in case road surface is damaged by subsidence,
- s4auto:HazardousLocation-SurfaceCondition_snowDrifts - in case road surface is damaged due to snow drift,
- s4auto:HazardousLocation-SurfaceCondition_stormDamage - in case road surface is damaged by strong storm,
- s4auto:HazardousLocation-SurfaceCondition_burstPipe - in case road surface is damaged due to pipe burst,
- s4auto:HazardousLocation-SurfaceCondition_volcanoEruption - in case road surface is damaged due to volcano eruption,
- s4auto:HazardousLocation-SurfaceCondition_fallingIce - in case road surface damage is due to falling ice,
- s4auto:HazardousLocation-SurfaceCondition_fire - in case there is fire on or near to the road surface.

In case road surface is damaged due to pipe burst

In case the road surface is damaged by earthquake

In case road surface damage is due to falling ice

In case there is fire on or near to the road surface.

In case rock falls are detected on the road surface

In case of sewer collapse on the road surface

In case road surface is damaged due to snow drift

In case road surface is damaged by strong storm

In case road surface is damaged by subsidence

In case road surface is damaged due to volcano eruption

This property represents the orientation of the horizontal velocity vector of an automotive object.

This property represents the orientation of the horizontal velocity vector of an automotive object, expressed as an angle value described in a local Cartesian coordinate system, per default counted positive in a right-hand local coordinate system from the abscissa

This property represents the orientation of the horizontal velocity vector of an automotive object, expressed as an angle value with regards to the WGS84 north.

This property represents the height of the left or right longitude carrier of vehicle from base to top (left or right carrier seen from vehicle rear to front).

In case the type of event is human presence on the road.

The following narrower traffic event causes are defined:

- s4auto:HumanPresenceOnTheRoad_childrenOnRoadway - in case children are detected on the road,
- s4auto:HumanPresenceOnTheRoad_cyclistOnRoadway - in case cyclist presence is detected on the road,
- s4auto:HumanPresenceOnTheRoad_motorcyclistOnRoadway - in case motorcyclist presence is detected on the road.

In case children are detected on the road

In case cyclist presence is detected on the road

In case motorcyclist presence is detected on the road.

In case the type of event is human health problem in vehicles involved in traffic.

The following narrower traffic event causes are defined:

- s4auto:HumanProblem_glycemiaProblem - in case human problem is due to glycaemia problem,
- s4auto:HumanProblem_heartProblem - in case human problem is due to heart problem.

In case human problem is due to glycaemia problem

In case human problem is due to heart problem.

in case the type of event is unmanaged road blocking, referring to any blocking of a road, partial or total, which has not been adequately secured and signposted

The innerhard shoulder of a road segment.

A unique intersection, identified in accordance with ETSI TS 103 301.

interurbanCoach vehicle kind, as defined by term No 3.1.2.3 in ISO 3833

This property shall contain a list of waypoints s4auto:Position.

One Position item in a sequence ItineraryPath.

Lane of a road segment.

Lanes are identified by (saref:hasIdentifier) using integer numbers between 1 and n, being number 1 the lane to the right when going forwards. The forward direction is the direction denoted by the vector which goes from the segment's start point to the segment's endpoint.

This property indicates a transversal position on the carriageway at a specific longitudinal position, in resolution of lanes of the carriageway.

For right-hand traffic roads, the value shall be set to:
- `-1` if the position is off, i.e. besides the road,
- `0` if the position is on the inner hard shoulder, i.e. the hard should adjacent to the leftmost lane,
- `n` (`n > 0` and `n < 14`), if the position is on the n-th driving lane counted from the leftmost lane to the rightmost lane of a specific traffic direction,
- `14` if the position is on the outer hard shoulder, i.e. the hard should adjacent to rightmost lane (if present).

For left-hand traffic roads, the value shall be set to:
- `-1` if the position is off, i.e. besides the road,
- `0` if the position is on the inner hard shoulder, i.e. the hard should adjacent to the rightmost lane,
- `n` (`n > 0` and `n < 14`), if the position is on the n-th driving lane counted from the rightmost lane to the leftmost lane of a specific traffic direction,
- `14` if the position is on the outer hard shoulder, i.e. the hard should adjacent to leftmost lane (if present).

The following property values are defined:
- s4auto:LanePosition_offTheRoad
- s4auto:LanePosition_innerHardShoulder
- s4auto:LanePosition_outerHardShoulder