Tableplus enum5/18/2023 ![]() List of descriptors to help to identify a specific location. This may be provided in one or more referencing systems.Ī location which may be used by clients for visual display on user interfaces. The specification of a location either on a network (as a point or a linear location) or as an area. Name of the road of which the linear element forms a part.Ī linear element along a single linear object defined by its identifier or code in a road network reference model (specified in LinearElement class) which segments the road network according to specific business rules.Īn identifier or code of a linear element (or link) in the road network reference model that is specified in the LinearElement class. List of descriptors identifying specific lanes.Ī language datatype, identifies a specified language by an ISO 639-1 2-alpha / ISO 639-2 3-alpha code.Ī linear element along a single linear object, consistent with ISO 19148 definitions. Identifier or name unique within the specified country. Īn identifier/name whose range is specific to the particular country. Version number associated with an ALERT-C table reference.Ī measured or calculated value of the flow rate of vehicle axles.Ī value of the flow rate of vehicle axles expressed in axles per hour.īoolean has the value space required to support the mathematical concept of binary-valued logic. EN ISO 14819-3 for the allocation of a location table number. Number allocated to an ALERT-C table in a country. The point is specified by a reference to a point in a pre-defined ALERT-C location table plus a non-negative offset distance.Ī single point on the road network defined by reference to a pre-defined ALERT-C location table and which has an associated direction of traffic flow. ![]() The point (called Primary point) which is either a single point or at the downstream end of a linear road section. Unique code within the ALERT-C location table which identifies the specific point, linear or area location.Ī positive integer number (between 1 and 63,487) which uniquely identifies a pre-defined Alert C location defined within an Alert-C table.Ī single point on the road network defined by reference to a point in a pre-defined ALERT-C location table plus an offset distance and which has an associated direction of traffic flow. ![]() Identification of a specific point, linear or area location in an ALERT-C location table. In ALERT-C the positive direction corresponds to the positive offset direction within the RDS location table. The direction of traffic flow concerned by a situation or traffic data. In ALERT-C the negative direction corresponds to the negative offset direction within the RDS location table. ![]() Indicates that both directions of traffic flow are affected by the situation or relate to the traffic data. negative) direction corresponds to the positive offset direction within the RDS location table. Positive is in the direction of coding of the road. The direction of traffic flow to which the situation, traffic data or information is related. The direction of traffic flow along the road to which the information relates. This indicates the length of road measured in metres affected by the associated traffic element. Indicates whether the pedestrian footpath is the subject or part of the subject of the location. Indicates the specific lane to which the location relates. Indicates the section of carriageway to which the location relates. Several instances may exist where the element being described extends over more than one carriageway. Supplementary positional information which details carriageway and lane locations.
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