A traffic condition which is not normal. A characterization of the nature of abnormal traffic flow, i.e. specifically relating to the nature of the traffic movement, implying a level of service. The number of vehicles waiting in a queue. The length of a queue or the average length of queues in separate lanes due to a situation. Assessment of the traffic flow conditions relative to normally expected conditions at this date/time. The consistency (steadiness) of the traffic flow. A characterization of the trend in the traffic conditions at the specified location and direction. Descriptive terms for abnormal traffic conditions specifically relating to the nature of the traffic movement, implying levels of service. Traffic is stationary, or very near stationary, at the specified location (i.e. average speed is less than 10% of its free-flow level). Traffic is queuing at the specified location, although there is still some traffic movement (i.e. average speed is between 10% and 25% of its free-flow level). Traffic is slow moving at the specified location, but not yet forming queues (i.e. average speed is between 25% and 75% of its free-flow level). Traffic is heavy at the specified location (i.e. average speed is between 75% and 90% of its free-flow level). There are abnormal traffic conditions of an unspecified nature at the specified location. Other than as defined in this enumeration. Accidents are events where one or more vehicles are involved in collisions or in leaving the roadway. These include collisions between vehicles or with other road users or obstacles. A descriptor indicating the most significant factor causing an accident. A characterization of the nature of the accident. Identifies a type of collision The total number of people that are involved. The total number of vehicles that are involved. The vehicle involved in the accident. Collection of the type of accident causes. Avoidance of obstacles on the roadway. Driver distraction. Driver under the influence of drugs. Driver illness. Loss of vehicle control due to excessive vehicle speed. Driver abilities reduced due to driving under the influence of alcohol. Alcohol levels above nationally accepted limit. Excessive tiredness of the driver. A driving manoeuvre which was not permitted. Limited or impaired visibility. Not keeping a safe distance from the vehicle in front. Driving on the wrong side of the road. Pedestrian in the roadway. Not keeping to lane. Poor judgement when merging at an entry or exit point of a carriageway or junction. Poor road surface condition. Poor road surface adherence. Undisclosed cause. Unknown cause. Malfunction or failure of vehicle function. Other than as defined in this enumeration. Collection of descriptive terms for types of accidents. Accidents are situations in which one or more vehicles lose control and do not recover. They include collisions between vehicle(s) or other road user(s), between vehicle(s) and fixed obstacle(s), or they result from a vehicle running off the road. Includes all accidents involving at least one vehicle believed to be carrying materials, which could present an additional hazard to road users. Includes all accidents involving at least one heavy goods vehicle. Includes all accidents involving at least one mass transit vehicle. Includes all accidents involving public transport Accident involving radioactive material. Includes all accidents involving collision with a train. Collision of vehicle with another object of unspecified type. Includes all accidents involving three or more vehicles. Includes all situations resulting from vehicles avoiding or being distracted by earlier accidents. Includes all accidents believed to involve fatality or injury expected to require overnight hospitalisation. A vehicle is stuck under a bridge. Other than as defined in this enumeration. Deliberate human action external to the traffic stream or roadway which could disrupt traffic. Mobility of the activity. An obstruction on the road resulting from the presence of animals. Indicates whether the identified animals are dead (immobile) or alive (potentially mobile). Indicates the nature of animals present on or near the roadway. Types of animal presence. Traffic may be disrupted due to animals on the roadway. Traffic may be disrupted due to a herd of animals on the roadway. Traffic may be disrupted due to large animals on the roadway. Small animals (that may fit underneath vehicle frames) are on the road Wild animals (not controlled by humans) are on the road Authority initiated operation or activity that could disrupt traffic. Type of authority initiated operation or activity that could disrupt traffic. Types of authority operations. An operation involving authorised investigation work connected to an earlier reported accident. An operation where a bomb squad is in action to deal with suspected or actual explosive or incendiary devices which may cause disruption to traffic. A situation, perceived or actual, relating to a civil emergency which could disrupt traffic. This includes large scale destruction, through events such as earthquakes, insurrection, and civil disobedience. A permanent or temporary operation established by customs and excise authorities on or adjacent to the carriageway. An operation involving the juridical reconstruction of events for the purposes of judicial or legal proceedings. A permanent or temporary operation established on or adjacent to the carriageway for use by police or other authorities. A temporary operation established on or adjacent to the carriageway by the police associated with an ongoing investigation. A permanent or temporary operation established on or adjacent to the carriageway for use by the road operator, such as for survey or inspection purposes, but not for traffic management purposes. the police are checking if snow chains are on board vehicles or vehicles have snow tyres mounted the police are checking if snow chains or snow tyres are mounted on vehicles A permanent or temporary operation established by authorities on or adjacent to the carriageway for the purpose of gathering statistics or other traffic related information. An operation to transport one or more VIPs. An authority activity of undefined type. A permanent or temporary operation established on or adjacent to the carriageway for inspection of vehicles by authorities (e.g. vehicle safety checks and tachograph checks). A permanent or temporary operation established on or adjacent to the carriageway for weighing of vehicles by authorities. A permanent or temporary facility established by authorities on the carriageway for weighing vehicles while in motion. Other than as defined in this enumeration. Contains details of the cause of a record within a situation Description of a cause which is not managed by the publication creator (e.g. an off network cause). Indicates an external influence that may be the causation of components of a situation. The type of cause, expressed in more detail than the NonManagedCause causeType. If both are present then they must be consistent. A reference to another situation record which defines a cause of the event defined here. Types of causes of situations which are not managed or are off network. A traffic condition that is not normal. Accident. An obstruction on the road resulting from the presence of animals Authority initiated operation or activity Roadworks involving the construction of new infrastructure. Deliberate human action of either a public disorder nature or of a situation alert type which could disrupt traffic. Degraded driving conditions. An obstruction on the road resulting from an environmental cause Equipment or system which is faulty, malfunctioning or not in a fully operational state An obstruction on the road resulting from the failure or damage of infrastructure on, under, above or close to the road Instruction and/or message issued by the network/road operator Network management action which is applicable to the road network and its users. Road surface conditions that are not related to the weather Obstruction on the roadway. Poor environmental conditions Organised public event Rerouting management action issued by the network/road operator Roadworks involving the maintenance or installation of infrastructure Disruption to normal road operator services Road, carriageway or lane management action instigated by the network/road operator Road side assistance Disruption to normal roadside services Speed management action instigated by the network/road operator Disruption to transit services of direct relevance to road users, e.g. connecting rail or ferry services An obstruction on the road caused by one or more vehicles. Road surface conditions related to the weather Winter driving management action instigated by the network/road operator An earlier event. An earlier incident. Holiday traffic. Problems at the border crossing. Problems at the customs post on the border. Problems (of an unspecified nature) on the local roads. A roadside event (of unspecified nature) whether planned or not. Drivers being distracted and turning to look at an accident or other roadside event. Technical problems. A vandalism incident. Other than as defined in this enumeration. Identifies a type of collision Collision of vehicle with one or more animals. Collision of vehicle with an object of a stationary nature. Collision of vehicle with one or more pedestrians. Collision of vehicle with another vehicle head on. Collision of vehicle with another vehicle either head on or sideways. Collision involving multiple vehicles Includes all accidents where one or more vehicles have collided with the rear of one or more other vehicles. Includes all accidents where one or more vehicles have collided with the side of one or more other vehicles. A free text comment with an optional date/time stamp that can be used by the operator to convey un-coded observations/information. A free text comment that can be used by the operator to convey un-coded observations/information. The date/time at which the comment was made. A classification of the the type of comment. Classification of comment types. A free text human oriented note describing details of abnormal load movements associated with the SituationRecord. A free text human oriented note describing the way the information in the SituationRecord has been or should be processed. A free text human oriented description of the situation element defined by the SituationRecord. A free text human oriented note that supports internal traffic control operations relating to the situation element defined by the SituationRecord. Human-readable name by which the associated roadworks is known A free text human oriented warning relating to the SituationRecord, such as advising the recipient that an advanced warning on VMS should be activated. Other than as defined in this enumeration. Types of compliance. Advisory compliance. Mandatory compliance. Any conditions which have the potential to degrade normal driving conditions. Description of the driving conditions at the specified location. Roadworks involving the construction of new infrastructure. The type of construction work being performed. Types of works relating to construction. Blasting or quarrying work at the specified location. Construction work of a general nature at the specified location. Demolition work associated with the construction work. Construction work associated with improvements to the road or its layout or with it upgrading. Road widening work at the specified location. Classifications of a delay banded by length (i.e. the additional travel time). Negligible delay. Delay up to ten minutes. Delay between ten minutes and thirty minutes. Delay between thirty minutes and one hour. Delay between one hour and three hours. Delay between three hours and six hours. Delay longer than six hours. The details of the delays being caused by the situation element defined in the situation record. It is recommended to only use one of the optional attributes to avoid confusion. The time band within which the additional travel time due to adverse travel conditions of any kind falls, when compared to "normal conditions". Coarse classification of the delay. The value of the additional travel time due to adverse travel conditions of any kind, when compared to "normal conditions", given in seconds. Course classifications of a delay. Delays on the road network as a result of any situation which causes hold-ups. Delays on the road network whose predicted duration cannot be estimated. Delays on the road network of unusual severity. Delays on the road network of abnormally unusual severity. The type of influence that may be the cause of components of a situation. At least one attribute must be populated. A characterization of the nature of abnormal traffic flow, i.e. specifically relating to the nature of the traffic movement. A characterization of the nature of the accident. Indicates the nature of animals present on or near the roadway. Type of authority initiated operation or activity that could disrupt traffic. The type of construction work being performed. Includes all situations of a public disorder type or of an alert type, with potential to disrupt traffic. Description of the driving conditions at the specified location. Characterization of an obstruction on the road resulting from an environmental cause. Failure, malfunction or non operational condition of equipment or system. General instruction that is issued by the network/road operator which is applicable to drivers and sometimes passengers. The type of traffic management action instigated by the network/road operator. Characterization of an obstruction on the road resulting from the failure or damage of infrastructure on, under, above or close to the road. The type of road conditions which are not related to the weather. Characterization of the type of general obstruction. The type of environment condition which is affecting driving conditions. Type of public event which could disrupt traffic. Type of rerouting management action instigated by operator. The type of road maintenance or installation work at the specified location. The type of road operator service which is disrupted. Type of road, carriageway or lane management action instigated by operator. Indicates the nature of the road side assistance that will be, is or has been provided. The type of roadside service which is disrupted. Type of speed management action instigated by operator. Information about transit services. Characterization of an obstruction on the road caused by one or more vehicles. The type of road surface condition that is related to the weather which is affecting the driving conditions. Type of winter equipment management action instigated by operator. Deliberate human action of either a public disorder nature or of a situation alert type which could disrupt traffic. Includes all situations of a public disorder type or of an alert type, with potential to disrupt traffic. Types of disturbance activities. A situation relating to any threat from foreign air power. An altercation (argument, dispute or fight) between two or more vehicle occupants. A situation where an assault has taken place on one or more persons. A situation where assets of one or more persons or authorities have been destroyed. A situation where an attack on a group of people or properties has taken place. A situation where an attack on a vehicle or its occupants has taken place. A manned blockade or barrier across a road stopping vehicles passing. An alert to a situation where suspected or actual explosive or incendiary devices may cause disruption to traffic. A major gathering of people that could disrupt traffic. A public protest with the potential to disrupt traffic. A situation where a definite area is being cleared due to dangerous conditions or for security reasons. A manned blockade of a road where only certain vehicles are allowed through. As a form of protest, several vehicles are driving in a convoy at a low speed which is affecting the normal traffic flow. A situation involving gunfire, perceived or actual, on or near the roadway through an act of terrorism or crime, which could disrupt traffic. One or more occupants of a vehicle are seriously ill, possibly requiring specialist services or assistance. This may disrupt normal traffic flow. A situation where people are walking together in large groups for a common purpose, with potential to disrupt traffic. People throwing objects on the road A situation of public disorder, with potential to disrupt traffic. An alert to a radioactive leak which may endanger the public and hence may cause traffic disruption. A situation of public disorder involving violent behaviour and/or destruction of property with the potential to disrupt traffic. A situation resulting from any act of sabotage. An official alert to a perceived or actual threat of crime or terrorism, which could disrupt traffic. A situation related to a perceived or actual threat of crime or terrorism, which could disrupt traffic. Attendees or sightseers to reported event(s) causing obstruction to access. A situation resulting from industrial action that could disrupt traffic. A situation related to a perceived or actual threat of terrorism, which could disrupt traffic. A situation where assets of one or more persons or authorities have been stolen. An alert to a toxic release of gases and/or particulates into the environment which may endanger the public and hence may cause traffic disruption. An alert to a perceived or actual threat of an unspecified nature, which could disrupt traffic. Other than as defined in this enumeration. Types of the perceived driving conditions. Current conditions are making driving impossible. Driving conditions are hazardous due to environmental conditions. Driving conditions are normal. The roadway is passable to vehicles with driver care. Driving conditions are unknown. Driving conditions are very hazardous due to environmental conditions. Driving conditions are consistent with those expected in winter. Other than as defined in this enumeration. An obstruction on the road resulting from an environmental cause. The depth of flooding or of snow on the road. Characterization of an obstruction on the road resulting from an environmental cause. Types of environmental obstructions. The road may be obstructed or partially obstructed due to snow slides. The road may be obstructed or partially obstructed because of damage caused by an earthquake. The road is obstructed or partially obstructed by one or more fallen trees. Falling ice off trees, power lines or structures which may cause traffic disruption. Falling light ice or snow off trees, power lines or structures which may cause traffic disruption. The road may become quickly inundated by powerful floodwaters due to heavy rain nearby. The road is obstructed or partially obstructed by flood water. Traffic may be disrupted due to a forest fire adjacent to the roadway. Traffic may be disrupted due to a grass fire adjacent to the roadway. The road may be obstructed or partially obstructed due to landslides. The road may be obstructed or partially obstructed due to mudslides. The road is obstructed or partially obstructed by overflows from one or more sewers. The road may be obstructed or partially obstructed due to fallen rocks. Traffic may be disrupted due to a fire (other than a vehicle fire) adjacent to the roadway. Smoke or fumes which may hinder driving conditions or distract drivers. The road may be obstructed or partially obstructed by debris caused by strong winds. The road surface has sunken or collapsed in places. Other than as defined in this enumeration. Equipment or system which is faulty, malfunctioning or not in a fully operational state that may be of interest or concern to road operators and road users. Failure, malfunction or non operational condition of equipment or system. The type of equipment or system which is faulty, malfunctioning or not in a fully operational state. Types of fault, malfunctioning or non operational conditions of equipment or systems. Not working or functioning. Out of service (usually for operational reasons). Working incorrectly. Working intermittently. Types of equipment and systems used to support the operation of the road network. Automatic number plate recognition cameras. Automated toll system. Closed-circuit television cameras. Emergency roadside telephones. Fire detection equipment Gallery lights. Signs used to control lane usage (e.g. in tidal flow systems or hard shoulder running). Level crossing (barriers and signals). Matrix signs. These normally comprise a symbol display area surrounded by four lights (usually amber) which flash when a symbol is displayed. Ramp control equipment. Roadside communications system which is used by one or more roadside equipments or systems. Roadside power system which is used by one or more roadside equipments or systems. Signs used to control traffic speed. Street or road lighting. Temporary traffic lights. Toll gates. Sets of traffic lights. Traffic signals. Tunnel emergency telephones Tunnel fire fighting equipment Tunnel lights. Tunnel mobile coverage communication equipment Tunnel radio communication equipment Any tunnel safety system Tunnel ventilation system. Variable message signs. Other than as defined in this enumeration. General instruction and/or message that is issued by the network/road operator which is applicable to drivers and sometimes passengers. General instruction that is issued by the network/road operator which is applicable to drivers and sometimes passengers. General message that is issued by the network/road operator which is applicable to drivers and sometimes passengers, e.g. details about an amber alert (missing or abducted child alert). General instructions that may be issued to road users (specifically drivers and sometimes passengers) by an operator or operational system in support of network management activities or emergency situations. Allow emergency vehicles to pass. Approach with care. Drivers are to avoid the area. Close all windows and turn off heater and vents. Cross junction with care. Do not allow unnecessary gaps. Do not leave your vehicle. Do not throw out any burning objects. Do not use navigation systems to determine routing. Drive carefully. Drive with extreme caution. Flash your lights to warn oncoming traffic of hazard ahead. Follow the vehicle in front, smoothly. Increase normal following distance. In emergency, wait for patrol service (either road operator or police patrol service). Keep your distance. Leave your vehicle and proceed to next safe place. No naked flames. No overtaking on the specified section of road. No smoking. No stopping. No U-turns. Observe current amber alert (an emergency alert issued for a missing or abducted child). Observe signals. Observe signs. Only travel if absolutely necessary. Overtake with care. Pull over to the edge of the roadway. Stop at next safe place. Stop at next rest service area or car park. Switch off engine. Switch off mobile phones and two-way radios. Test your brakes. Use bus service. Use fog lights. Use hazard warning lights. Use headlights. Use rail service. Use tram service. Use underground service. Wait for escort vehicle. Other than as defined in this enumeration. Network management action that is instigated either manually or automatically by the network/road operator. Compliance with any resulting control may be advisory or mandatory. The type of traffic management action instigated by the network/road operator. Type of person that is manually directing traffic (applicable if generalNetworkManagementType is set to "trafficBeingManuallyDirected"). Types of network management actions. The bridge at the specified location has swung or lifted and is therefore temporarily closed to traffic. A vehicle convoy service is in operation, for example with a snowplough running ahead due to bad weather conditions. Signs are being put out before or around an obstacle to protect drivers. Ramp metering is now active at the specified location. Traffic is being controlled by temporary traffic lights (red-yellow-green or red-green). Toll gates are open with no fee collection at the specified location. Traffic is being manually directed. Traffic in the specified direction is temporarily held up due to an unplanned event (e.g. for clearance of wreckage following an accident). Other than as defined in this enumeration. Any stationary or moving obstacle of a physical nature, other than of an animal, vehicle, environmental, or damaged equipment nature. Characterization of the type of general obstruction. A generic SituationRecord for use when adding level B extensions at the SituationRecord level. The name of the GenericSituationRecord. Group of people involved in the event having common characteristics and/or status. The number of people of this group that are involved. The injury status of the people involved. The involvement role of the people. The category of persons involved. An assessment of the impact that an event or operator action defined by the situation record has on the driving conditions. The ratio of current capacity to the normal (free flow) road capacity in the defined direction, expressed as a percentage. Capacity is the maximum number of vehicles that can pass a specified point on the road, in unit time given the specified conditions. The number of normally usable lanes on the carriageway which are now restricted either fully or partially (this may include the hard shoulder if it is normally available for operational use, e.g. in hard shoulder running schemes). The number of usable lanes in the specified direction which remain fully operational (this may include the hard shoulder if it is being used as an operational lane). The width of lanes after any lane narrowing The total width of the combined operational lanes in the specified direction. An obstruction on the road resulting from the failure or damage of infrastructure on, under, above or close to the road. Characterization of an obstruction on the road resulting from the failure or damage of infrastructure on, under, above or close to the road. Types of infrastructure damage which may have an effect on the road network. The road surface has sunken or collapsed in places due to burst pipes. Traffic may be disrupted due to local flooding and/or subsidence because of a broken water main. The road surface has sunken or collapsed in places due to sewer failure. Damage to a bridge that may cause traffic disruption. Damage to a crash barrier that may cause traffic disruption. Damage to an elevated section of the carriageway over another carriageway that may cause traffic disruption. Damage to a gallery that may cause traffic disruption. Damage to a gantry above the roadway that may cause traffic disruption. Damage to the road surface that may cause traffic disruption. Damage to a tunnel that may cause traffic disruption. Damage to a viaduct that may cause traffic disruption. The road is obstructed or partially obstructed by one or more fallen power cables. Traffic may be disrupted due to an explosion hazard from gas escaping in or near the roadway. Weak bridge capable of carrying a reduced load, typically with a reduced weight limit restriction imposed. Other than as defined in this enumeration. Types of injury status of people. Dead. Injured requiring medical treatment. Seriously injured requiring urgent hospital treatment. Slightly injured requiring medical treatment. Uninjured. Injury status unknown. Involvement role of a person in event. Cyclist. Motorcyclist Pedestrian. Involvement role is unknown. Vehicle driver. Vehicle occupant (driver or passenger not specified). Vehicle passenger. Witness. Types of maintenance vehicle actions associated with roadworks. Maintenance vehicles are performing maintenance action Maintenance vehicles are merging into the traffic flow creating a potential hazard for road users. Maintenance vehicles are slow moving. Maintenance vehicles are stopping to service equipments on or next to the roadway. Details of the maintenance vehicles involved in the roadworks activity. The number of maintenance vehicles associated with the roadworks activities at the specified location. The actions of the maintenance vehicles associated with the roadworks activities. Roadworks involving the maintenance or installation of infrastructure. The type of road maintenance or installation work at the specified location. An indication of whether the associated instance of a SituationRecord is mobile (e.g. a march or parade moving along a road) or stationary. An indication of whether the associated instance of a SituationRecord is mobile (e.g. a march or parade moving along a road) or stationary. Speed of the mobile entity. Types of mobility relating to a situation element defined by a SituationReord. The described element of a situation is moving. The described element of a situation is stationary. The mobility of the described element of a situation is unknown. Network management action which is applicable to the road network and its users. Defines whether the network management instruction or the control resulting from a network management action is advisory or mandatory. The ultimate traffic direction to which the network management is applicable. The type of traffic to which the network management is applicable. Places, in generic terms, at which the network management applies. Defines whether the network management is initiated by an automatic system. The characteristics of those vehicles for which the network management is applicable. Road surface conditions that are not related to the weather but which may affect driving conditions. The type of road conditions which are not related to the weather. Types of road surface conditions which are not related to the weather. Increased skid risk due to diesel on the road. Increased skid risk due to leaves on road. Increased skid risk and injury risk due to loose chippings on road. Increased skid risk due to loose sand on road. Increased skid risk due to mud on road. Increased skid risk due to oil on road. Increased skid risk due to petrol on road. Road markings are not present due to maintenance works in progress The road surface is damaged, severely rutted or potholed (i.e. it is in a poor state of repair). The road surface is slippery due to an unspecified non-weather related cause. Other than as defined in this enumeration. Any stationary or moving obstacle of a physical nature (e.g. obstacles or vehicles from an earlier accident, shed loads on carriageway, rock fall, abnormal or dangerous loads, or animals etc.) which could disrupt or endanger traffic. The number of obstructions that are partly or wholly blocking the road. The mobility of the obstruction. Types of obstructions on the roadway. An air crash adjacent to the roadway which may cause traffic disruption. Children on the roadway which may cause traffic disruption. Clearance work associated with an earlier traffic problem which may cause traffic disruption. A crane is operating either on or adjacent to the road which may cause an obstruction to traffic. Cyclists on the roadway which may cause traffic disruption. Scattered fragments of wreckage or other material on the road. A situation where an explosive or incendiary device has gone off. A situation where there is danger of an explosion which may cause disruption to traffic. Unspecified hazard(s) on the road which may cause traffic disruption. Incidents are chance occurrences involving vehicles from the traffic stream, which could present potential hazards to road users. This item excludes accidents. Industrial accident near the roadway which may cause traffic disruption. The road may be obstructed or traffic hindered due to objects laying on the roadway. Objects falling from moving vehicles which are presenting a hazard to other vehicles. Unspecified obstruction on the roadway which may cause traffic disruption. People on the roadway which may cause traffic disruption. A rail crash adjacent to the roadway which may cause traffic disruption. Work is being undertaken by emergency services which may present a hazard to road users. Severe frost damage to the roadway causing an obstruction to traffic. Spillage of transported goods on the roadway which may cause traffic disruption. Snow and ice debris on the roadway which may present a hazard to road users. Substances are spilling out from a moving vehicle which is presenting a hazard to other road users. Includes all situations where a spillage has occurred on the roadway due to an earlier incident. An accident area which has not been protected and may present a hazard to road users. Other than as defined in this enumeration. Actions that an authorised operator can decide to implement to prevent or help correct dangerous or poor driving conditions, or any actions affecting normal operation of a road. Indicates whether the actions to be undertaken by the operator are the result of an internal operation or external influence. The identifier of the traffic management action plan to which this action relates. The status of the defined operator action. Origins of operator actions. Operator action originated externally to the authority which is taking the action. Operator action originated within the authority which is taking the action. List of statuses associated with operator actions. A request, either internal or external, has been received to implement an action. It has neither been approved nor has any activity yet been undertaken to implement the action. The action has been approved by the recipient of the request but activity to implement the action has not yet commenced. The action is in the process of being implemented. The action is fully implemented. The action has been rejected by the recipient of the request and hence is not implemented. A request, either internal or external, has been received to terminate the action, but activity to terminate the action has not yet commenced. The action is in the process of being terminated either because the action has reached the end of its validity period or because new circumstances have arisen and its termination has been requested, e.g. because of a traffic jam on the alternative route. Categories of person. Adult. Child (age 4 to 17). A member of the emergency services, other than the police. A member of the fire service. Infant (age 0 to 3). A member of the medical service. A member of the general public. A member of the police force. A politician. A passenger on or from a public transport vehicle. A sick person. A traffic patrol officer of the road authority. A member of the local traffic warden service. A very important person. List of types of places. Around bends in the road. At customs posts. At high altitudes. At rest areas At service areas At toll plazas. In built up areas, i.e. villages, towns and cities. In sections of the road where contraflow is in operation. On sections of the road where it runs through or adjacent to forested areas. In galleries. In low lying areas. In roadworks areas. In rural areas, i.e. outside villages, towns and cities. In shaded areas. In the inner city areas. In the city centre. In tunnels. On bridges. On down hill sections of the road. On dual carriageway sections of the road. On elevated sections of the road. On entering or leaving tunnels. On entry into the country. On flyover sections of the road, i.e. sections of the road which pass over another road. On leaving the country. On motorways. On non motorways. On mountain passes. On roundabouts. On single carriageway sections of the road. On slip roads. On underground sections of the road. On underpasses, i.e. sections of the road which pass under another road. On hill sections of the road. Over the crest of hills. Other than as defined in this enumeration. Any environmental conditions which may be affecting the driving conditions on the road. The type of environment condition which is affecting driving conditions. Types of poor environmental conditions. Adverse weather conditions are affecting driving conditions. Heavy snowfall in combination with strong winds, limiting visibility to 50m or less. Dust blowing across the roadway causing significantly reduced visibility. Fallen snow moving due to the forces of wind. Strong cross winds across the direction of the roadway (e.g. on a ridge or bridge). Large falling ice pellets or frozen rain capable of causing injury or damage to property. Dense fog, limiting visibility to 50m or less. Eclipse, either partial or full, of the sun causing low light levels during normal daylight period. Abnormally low temperatures. Abnormally high expected maximum temperature. Fog, visibility more than 50m. Fog, in conjunction with sub-zero air temperatures causing possible freezing of road surface. Frost can be expected. Winds between 60 km/h and 90 km/h. Constantly varying winds, significant at times. Falling ice pellets or frozen rain. A thick coating of frost can be expected. Heavy rainfall, limiting visibility to 50m or less. Dense falling snow, limiting visibility to 50m or less. Winds over 120 km/h. Difficult visibility conditions created by low elevation sunlight. Misty conditions impairing vision over 100m. Fire near the road affecting driving conditions and/or significantly reduced visibility Flooding near the road risking to affect driving conditions High concentrations of ozone are present. Pollution of an unspecified nature. Fog, in which intermittent areas of dense fog may be encountered. Unspecified precipitation is falling on the area. Rain, visibility more than 50m. Falling rain is changing to snow. Sand blowing across the roadway causing significantly reduced visibility. Pollution from exhaust fumes has reached a level sufficient to cause concern. Environmental warning of very poor air quality resulting from smog. Light rain or intermittent rain. Rain mingled with snow or hail. Environmental warning of poor air quality resulting from smog. Smoke drifting across the roadway causing significantly reduced visibility. Falling snow is changing to rain. Falling snow, visibility more than 50m. Reduced visibility resulting from spray created by moving vehicles on a wet roadway. Winds between 90 km/h and 120 km/h. Constantly varying winds, strong at times. Winds between 40 km/h and 60 km/h. Large numbers of insects which create a hazard for road users through reduced visibility. The temperature is falling significantly. Electrical storms, generally with heavy rain. Very violent, whirling windstorms affecting narrow strips of country. Constantly varying winds, very strong at times. Environmental conditions causing reduced visibility. Falling snow in blizzard conditions resulting in very reduced visibility. Heavy rain, sleet, hail and/or snow in combination with strong winds, limiting visibility to 50m or less. Levels of confidence that the sender has in the information, ordered {certain, probable, risk of}. The source is completely certain of the occurrence of the situation record version content. The source has a reasonably high level of confidence of the occurrence of the situation record version content. The source has a moderate level of confidence of the occurrence of the situation record version content. Organised public event which could disrupt traffic. Type of public event which could disrupt traffic. Name of the venue at which the public event is being held Levels of assessment of the traffic flow conditions relative to normally expected conditions at this date/time. Traffic is very much heavier than normally expected at the specified location at this date/time. Traffic is heavier than normally expected at the specified location at this date/time. Traffic flow is normal at the specified location at this date/time. Traffic is lighter than normally expected at the specified location at this date/time. Traffic is very much lighter than normally expected at the specified location at this date/time. Rerouting management action that is issued by the network/road operator. Type of rerouting management action instigated by operator. A description of the rerouting itinerary. Indication of whether the rerouting is signed. Identity used on signs to identify the alternative route, typically a very short sequence of letters and/or digits The specified entry on to another road at which the alternative route commences. The specified exit from the normal route/road at which the alternative route commences. The intersecting road or the junction at which the alternative route commences. The definition of the alternative route (rerouting) specified as an ordered set of locations (itinerary) which may be specific to one or more defined destinations. The destination of the rerouting. Use this direct property when there is no detailed Itinerary available. Management actions relating to rerouting. Do not follow diversion signs. Rerouted traffic is not to use the specified entry onto the identified road to commence the alternative route. Rerouted traffic is not to use the specified exit from the identified road to commence the alternative route. Rerouted traffic is not to use the specified intersection or junction. Rerouted traffic is to follow the diversion signs. Rerouted traffic is to follow local diversion. Rerouted traffic is to follow the special diversion markers. Rerouted traffic is to use the specified entry onto the identified road to commence the alternative route. Rerouted traffic is to use the specified exit from the identified road to commence the alternative route. Rerouted traffic is to use the specified intersection or junction to commence the alternative route. Types of road maintenance. repairing works after an accident, not clearance work but rebuilding of infrastructure Clearance work of an unspecified nature. Controlled avalanche work. Installation of new equipments or systems on or along-side the roadway. Grass cutting work. Work to collect litter from the roadway and/or adjacent verges. Maintenance of road, associated infrastructure or equipments. People on road for general maintenance purpose Works which are overhead of the carriageway. Repair work to road, associated infrastructure or equipments. Work associated with relaying or renewal of worn-out road surface (pavement). Striping and repainting of road markings, plus placement or replacement of reflecting studs (cats' eyes). Road side work of an unspecified nature. Roadworks are completed and are being cleared. Road maintenance or improvement activity of an unspecified nature which may potentially cause traffic disruption. Rock fall preventative maintenance. Spreading of salt and / or grit on the road surface to prevent or melt snow or ice. Snowploughs or other similar mechanical devices in use to clear snow from the road. Sweeping of the roadway. Tree and vegetation cutting work adjacent to the roadway. Other than as defined in this enumeration. Details of disruption to normal road operator services The type of road operator service which is disrupted. Types of disruption to road operator services relevant to road users. Emergency telephone number for use by public to report incidents is out of service. Road information service telephone number is out of service. No traffic officer patrol service is operating. Road, carriageway or lane management action that is instigated by the network/road operator. Type of road, carriageway or lane management action instigated by operator. The minimum number of persons required in a vehicle in order for it to be allowed to transit the specified road section. Management actions relating to road, carriageway or lane usage. Dedicated car pool lane(s) are in operation for vehicles carrying at least the specified number of occupants. Carriageway closures are in operation at the specified location. Clear a lane for emergency vehicles. Clear a lane for snow ploughs and gritting vehicles. The road is closed to vehicles with the specified characteristics or all, if none defined, for the duration of the winter. Two-way traffic is temporarily sharing a single carriageway. Do not use the specified lane(s) or carriageway(s). The hard shoulder is open as an operational lane. the hardshoulder used for dynamic hardshoulder management is closed to vehicles i.e. not running A height restriction is in operation. Road closures occur intermittently on the specified road in the specified direction for short durations. Keep to the left. Keep to the right. Lane closures are in operation at the specified location for vehicles with the specified characteristics or all, if none defined, in the specified direction. Lane deviations are in operation at the specified location. Normal lane widths are temporarily reduced. A new layout of lanes/carriageway has been implemented associated with roadworks. Every night the road is closed to vehicles with the specified characteristics or all, if none defined, in the specified direction by decision of the appropriate authorities. The road has been cleared of earlier reported problems. The road is closed to vehicles with the specified characteristics or all, if none defined, in the specified direction. Traffic officers or police are driving slowly in front of a queue of traffic to create a gap in the traffic to allow for clearance activities to take place in safety on the road ahead. Dedicated rush (peak) hour lane(s) are in operation. Traffic is being controlled to move in alternate single lines. This control may be undertaken by traffic lights or flagman. Dedicated tidal flow lane(s) are in operation in the specified direction. Traffic is being directed back down the opposite carriageway, possibly requiring the temporary removal of the central crash barrier. The specified lane(s) or carriageway(s) may be used. The normal lane(s) or carriageway(s) restrictions are not currently in force. Use the specified lane(s) or carriageway(s). Vehicles are being stored on the roadway and/or at a rest area or service area at the specified location. A weight restriction is in operation. Other than as defined in this enumeration. Details of road side assistance required or being given. Indicates the nature of the road side assistance that will be, is or has been provided. Types of road side assistance. Air ambulance assistance. Bus passenger assistance. Emergency services assistance. First aid assistance. Food delivery. Helicopter rescue. Vehicle repair assistance. Vehicle recovery. Other than as defined in this enumeration. Conditions of the road surface which may affect driving conditions. These may be related to the weather (e.g. ice, snow etc.) or to other conditions (e.g. oil, mud, leaves etc. on the road) Road maintenance, installation and construction activities, works in the road, or other construction or maintenance actions that may affect normal operation of a road. Describes an available public transport alternative to the normal route Indicates in general terms the expected duration of the roadworks. An external identifier for the roadworks Grade of complexity of the roadworks according to the responsible road operator. For example determined by size, duration and/or traffic disruption. Indicates that the road section where the roadworks are located is under traffic or not under traffic. 'True' indicates the road is under traffic. Indication of whether the roadworks are considered to be urgent whereby emergency work is being, or needs to be, undertaken to mitigate safety concerns. 'True' indicates they are urgent. Expected durations of roadworks in general terms. The roadworks are expected to last for a long term (according to a classification scheme used by the responsible road operator) The roadworks are expected to last for a medium term (according to a classification scheme used by the responsible road operator) The roadworks are expected to last for a short term (according to a classification scheme used by the responsible road operator) Grade of complexity of the roadworks according to the responsible road operator. For example determined by size, duration and/or traffic disruption. The roadworks scale is major according to the responsible road operator. The roadworks scale is medium according to the responsible road operator. The roadworks scale is minor according to the responsible road operator. Details of disruption to normal services which may include roadside services such as those available at designated service areas, or any other relevant services such as nearby parking. The type of service which is disrupted. Types of disruption to services relevant to road users. Bar closed. There is a shortage of diesel at the specified location. There is a shortage of fuel (of one or more types) at the specified location. There is a shortage of liquid petroleum gas at the specified location. There is a shortage of methane at the specified location. There is no diesel available for heavy goods vehicles at the specified location. There is no diesel available for light vehicles at the specified location. There is little or no availbility of parking There are no available public telephones at the specified location. There are no available public toilet facilities at the specified location. There are no available vehicle repair facilities at the specified location. There is a shortage of petrol at the specified location. The rest area at the specified location is busy. The rest area at the specified location is closed. The rest area at the specified location is close to capacity and motorists are advised to seek an alternative. The service area at the specified location is close to capacity. The service area at the specified location is closed. The fuel station at the specified service area is closed. The service area at the specified location is close to capacity and motorists are advised to seek an alternative. The restaurant at the specified service area is closed. Some commercial services are closed at the specified location. There is a shortage of water at the specified location. Information about a service which may influence the behaviour of drivers and hence the characteristics of the traffic flow. Levels of severity of a situation as whole assessed by the impact that the situation may have on traffic flow as perceived by the supplier. Perceived by supplier as being of the highest level. Perceived by supplier as being of a high level. Perceived by supplier as being of a medium level. Perceived by supplier as being of a low level. Perceived by supplier as being of the lowest discernible level. Perceived by supplier as having a severity rating of none. Perceived by supplier as being of an unknown level. An identifiable instance of a traffic/travel situation comprising one or more traffic/travel circumstances which are linked by one or more causal relationships. Each traffic/travel circumstance is represented by a Situation Record. The overall assessment of the impact (in terms of severity) that the situation as a whole is having, or will have, on the traffic flow as perceived by the supplier. The date/time that this current version of the Situation was written into the database of the supplier which is involved in the data exchange. Identity and version of the situation are defined by the class stereotype implementation. Details of the Situation Reference to related situations via unique identifiers. Organisation that manages the information content (is responsible for updates of this information) typically the organisation that first made the DATEX II publication of this content. A SituationRecord that provides a summary of the information described by the corresponding Situation, i.e. a superset of at least the location and validity information of all (other) SituationRecords in this Situation. A publication containing zero or more traffic/travel situations. An identifiable versioned instance of a single record/element within a situation. A unique alphanumeric reference (either an external reference or GUID) of the SituationRecord object (the first version of the record) that was created by the original supplier. The date/time that the SituationRecord object (the first version of the record) was created by the original supplier. The date/time that the information represented by the current version of the SituationRecord was observed by the original (potentially external) source of the information. The date/time that this current version of the SituationRecord within the situation was written into the database of the supplier which is involved in the data exchange. Identity and version of record are defined by the class stereotype implementation. The date/time that the current version of the Situation Record was written into the database of the original supplier in the supply chain. The extent to which the related information may be circulated, according to the recipient type. Recipients must comply with this confidentiality statement. This overrides any confidentiality defined for the situation as a whole in the header information. An assessment of the degree of likelihood that the reported event will occur. The assessment of the impact (in terms of severity) that this element of the situation is having, or will have, on the traffic flow as perceived by the supplier. Indicates, whether this SituationRecord specifies a safety related message according to Commission Delegated Regulation (EU) No 886/2013. Impact of the situation element A comment which may be freely distributed to the general public A comment which should not be distributed to the general public. Organisation that manages the information content (is responsible for updates of this information) typically the organisation that first made the DATEX II publication of this content. This value overrides any value specified at a more general level. impact of the situation element on driving conditions in the opposite direction Reference to a SituationRecord A reference to a specific versioned identifiable object, which may be in this publication or an external publication Reference to a Situation A reference to a specific versioned identifiable object, which may be in this publication or an external publication Speed management action that is instigated by the network/road operator. Type of speed management action instigated by operator. Temporary limit defining the maximum advisory or mandatory speed of vehicles. Management actions relating to speed. Automatic speed control measures are in place at the specified location, whereby speed limits are set by an automatic system which is triggered by traffic sensing equipment. Do not slow down unnecessarily. Observe speed limit. Police speed checks are in operation. Reduce your speed. A speed restriction is in operation. Other than as defined in this enumeration. The subjects with which the roadworks are associated. The subject type of the roadworks (i.e. on what the construction or maintenance work is being performed). The number of subjects on which the roadworks (construction or maintenance) are being performed. Subject types of construction or maintenance work. Bridge on, over or under the highway. Buried cables under or along the highway. Unspecified buried services on, under or along the highway. Crash barrier. Cycle track adjacent to the road a footpath Gallery. Gantry over or above the roadway. Gas mains. a heating pipe Motorway or major road interchange. Motorway or major road junction. Level-crossing or associated equipment. Road lighting system. lock on a waterway adjacent to the road Equipment used for determining traffic measurements. passenger railway system, typically underground, in a metropolitan area Installations along the roadway designed to reduce road noise in the surrounding environment. parking facilities public transport infrastructure public transport stop (including but not limited to bus stops, trams stops, taxi stops) Road. Road signs. Roadside drains. Roadside embankment. Roadside equipment. Roundabout. a sewer street parking places Toll gate. traffic signals Road tunnel. bank of a waterway adjacent to the road Water main under or along the highway. Other than as defined in this enumeration. Types of constriction to which traffic is subjected as a result of an event. The carriageway is totally obstructed in the specified direction due to an unplanned event. The carriageway is partially obstructed in the specified direction due to an unplanned event. One or more lanes is totally obstructed in the specified direction due to an unplanned event. One or more lanes is partially obstructed in the specified direction due to an unplanned event. The road is totally obstructed, for all vehicles in both directions, due to an unplanned event. The road is partially obstructed in both directions due to an unplanned event. An event which is not planned by the traffic operator, which is affecting, or has the potential to affect traffic flow. The type of constriction to which traffic is subjected as a result of an unplanned event Types of consistency (steadiness) of traffic flow. Traffic flow is of an irregular nature, subject to sudden changes in rates. Traffic flow is smooth. Traffic flow is of a stop and go nature with queues forming and ending continuously on the specified section of road. Traffic is blocked at the specified location and in the specified direction due to an unplanned event. Types of traffic, mostly classified by its destination type. Traffic destined for local access only. Traffic destined for the airport. Traffic destined for airport arrivals. Traffic destined for airport departures. Traffic destined for the ferry service. Traffic destined for the rail service. Traffic heading towards holiday destinations. Traffic heading towards local destinations. Traffic heading towards destinations which are a long distance away. Traffic heading towards local regional destinations. Local residents only traffic. Traffic which is not for local access, i.e. traffic not destined for local town, city or built up area but for transit though the area. Traffic heading towards local visitor attraction. The availability of transit services and information relating to their departures. This is limited to those transit services which are of direct relevance to road users, e.g. connecting rail or ferry services. Indicates the stated termination point of the transit journey. Indicates the stated starting point of the transit journey. Indicates a transit service journey number. Information about transit services. The type of transit service to which the information relates. Indicates the timetabled departure time of a transit service for a specified location. Types of public transport information. Public transport, park-and-ride, rail or bus services are cancelled. The specified service is delayed due to bad weather. The specified service is delayed due to the need for repairs. The specified public transport service will be delayed until further notice. The departure of the specified ferry service is delayed due to flotsam. The departure of the specified service is on schedule. The ferry service has been replaced by an ice road. A shuttle service is operating at no charge between specified locations. The information service relating to the specified transport system is not currently available. The specified service is subject to irregular delays. The load capacity for the specified service has been changed. Long vehicles are subject to restrictions on the specified service. The specified service is subject to delays. The specified service is subject to delays whose predicted duration cannot be estimated accurately. The departure of the specified service is fully booked. The specified service is not operating. The specified service is not operating but an alternative service is available. The specified service has been suspended. The specified service has been cancelled. A shuttle service is operating between the specified locations. The timetable for the specified service is subject to temporary changes. Other than as defined in this enumeration. Types of transport services available to the general public. Air service. Bus service. Ferry service. Hydrofoil service. Rail service. Tram service. Underground or metro service. An obstruction on the road caused by one or more vehicles. Characterization of an obstruction on the road caused by one or more vehicles. Type of vehicle involved The component of the vehicle that has the problem The obstructing vehicle. Types of obstructions involving vehicles. Abandoned vehicle(s) on the roadway which may cause traffic disruption. Vehicle(s) carrying exceptional load(s) which may cause traffic disruption. Broken down vehicle(s) on the carriageway which may cause traffic disruption. A group of vehicles moving together in formation which may cause traffic disruption. Damaged vehicle(s) on the carriageway which may cause traffic disruption. Dangerous slow moving vehicles which may cause traffic disruption. Emergency service vehicles on the roadway in response to an emergency situation. Emergency service vehicles progressing at high speed along the roadway in response to or en route from an emergency situation. A vehicle of length greater than that normally allowed which may cause traffic disruption. Authorised and unauthorised vehicles are travelling at high speeds along the roadway. This may present a hazard to other vehicles. Vehicle has stopped due a medical issue of a driver or passenger A group of military vehicles moving together in formation which may cause traffic disruption. Vehicles of height greater than normally allowed which may cause traffic disruption. Vehicles not normally permitted on the motorway are present which may cause traffic disruption. A vehicle being driven without due care and attention is causing a hazard to other vehicles. A vehicle travelling at well below normal highway speeds which may cause traffic disruption. Special type of load or vehicle size, or even speed, that is allowed on the road only with special permission. The presence of this transport may cause traffic disruption. Carterpillar tracked vehicles are in use which may cause traffic disruption. Vehicles without lights are in use which may present a hazard to road users. A vehicle is or has been on fire and may cause traffic disruption. Vehicles carrying materials of a hazardous nature are present and these could expose road users to additional hazards. A vehicle is experiencing difficulties (e.g. manoeuvring or propulsion difficulties) which may cause traffic disruption. A vehicle is travelling the wrong way along a divided highway (i.e. on the wrong side). One or more vehicles are stuck (i.e. unable to move) due to environmental conditions such as a snow drift or severe icy road. An over-height vehicle which may present a hazard to road users. A vehicle of width greater than that normally allowed which may cause traffic disruption. Winter maintenance vehicle is on the road, not doing its specific work. Its presence may cause traffic disruption. Other than as defined in this enumeration. The component of the vehicle that has caused a problem Problem with the air system of a vehicle Problem with the battery of a vehicle Problem with the braking system of a vehicle Problem with the cooling system of a vehicle Problem with the coupling of a trailer Problem with a vehicle driver Problem with the electrical system of a vehicle Vehicle has one or more flat tyres Problem with the fuel system of a vehicle Problem with the gears of a vehicle Problem with the load of a vehicle Vehicle has lost a wheel Problem with the motor mechanics of a vehicle Vehicle has an oil leak Problem with the suspension of a vehicle Other vehicle problem source Unknown vehicle problem source Road surface conditions that are related to the weather which may affect the driving conditions, such as ice, snow or water. The type of road surface condition that is related to the weather which is affecting the driving conditions. Winter driving management action that is instigated by the network/road operator. Type of winter equipment management action instigated by operator.