Results for area 4.2 ITS environment
zero-dimensional element that specifies geometric location specified by one coordinate pair or triplet
core point representing an intersection, located at places where the road section signature at the location changes
NOTE 1 to entry The intersection point is one of the three defined core point types.
arbitrary points on the curved road that has associated location and value of curvature
specification of the end point of a defined route or itinerary
NOTE This may be either a location on a network or an area location.
location to be used as the end location of a journey for a route guidance application
the recommended route is a route calculated by the CDRG infrastructure and sent to the invehicle unit
two-dimensional face on the surface of the earth, with a specified outline either being a simple geometric figure or an irregular outline/polygon
a classification based on the importance of the road element in the connectivity of the total road network
motorways
all non-Motorways that are part of a connection used for nation wide traffic and transport
CP point belonging to the location reference core
selection of road segments to be referenced belonging to a certain area (subnetwork)
NOTE 1 to entry One implicit area can be built up of multiple subnetworks that are geographically connected.
explicit area with an outline defined by a simple geometric figure
simple curved road with a constant radius of curvature separated from other curved roads
NOTE 1 to entry The clothoid can be included.
intersection that consists at least of two or more junctions and one or more road elements
location where two or more roads connect or intersect
NOTE 1 to entry A road crossing can be “simple”, corresponding to one junction, or “complex”, including internal road elements and junctions.
named area which can be used as part of address location
curved road which is a combination of two or more closely located curved roads where the curved roads are constant radius curvatures
NOTE 1 to entry The clothoid can be included.
unit of geographic , defined by two parallels of min/max latitude and by two meridians of
min/max longitude, that represents the coverage area of the map data enclosed by or located on the
outline of the rectangle
two-dimensional, geographical region on the surface of the earth
NOTE 1 to entry An area can be represented as an implicit area or an explicit area.
curved road with two or more radii of curvature in the same direction
explicit area with an outline defined by segments being either polylines or linear locations
plurality of road segments lying in geographical or topological conjunction to each other
planar surface defined by one exterior boundary and zero or more interior boundaries
position on the road or road side used to identify the access point between the road network and
entrance or exit of facilities such as station, bus stop and building
parcel shaped like a rectangle
NOTE Regular parcels on the same generalization level are not intended to overlap.
terrestrial absolute geographical location
NOTE 1 to entry The absolute geographical location is defined according to a global coordinate reference system, such as the World Geodetic System 84 (WGS84) or the International Terrestrial Reference System (ITRS).
NOTE 2 to entry The CEN/TR 17297 series presents a tutorial on location referencing methods, applicable location
core point that bounds or is located on the location
NOTE 1 to entry Location points can coincide with intersection points or routing points. The start and the end of the location are always represented by a location point. Additional intermediate location points can be created to represent the shape of the location. The location point is one of the three defined core point types.
curvilinear length of roadway that shares the same identification
NOTE 1 to entry A length of the road network may be referenced by multiple designators (e.g. Main Street and Route 7). In this case, there would be two “roads” that share the same set of “carriageways”.
NOTE 2 to entry A road can change directions at a junction.
NOTE 3 to entry The identification is generally a name or number.
linear section of the road network which is designed for vehicular movement having a junction at each end
NOTE 1 to entry It serves as the smallest unit of the road network at GDF level 1 that is independent.
transverse view of road geometry
NOTE 1 to entry The transverse view provides a vertical section of the ground and carriageway at right angles to the centre line of the carriageway.
ordered pair of points (A, B) for which a direct connection exists from A to B along the path of the referenced location
NOTE 1 to entry In the road network, a direct connection between points A and B exists when point B can be reached from point A via part of the road network, without visiting intermediate points in the location reference.
This excludes points connected in a GDF graph via a node representing an intersection-not-at-grade. Such points are not considered to be directly connected.
additional point or set of points, not belonging to the location reference core, available in a location reference under special conditions
EP point belonging to the location reference extension
curve composed of straight-line segments
point met first when a linear road section is travelled according to the location direction
driving direction of the side road section
section where the radius of curvature is less than or equal to RC
NOTE 1 to entry RC denotes the maximum radius of curvature to be regarded as a curvature point of interest for potential warning for CSWS.
directed topological connection between two nodes, composed of an ordered sequence of one or more segments and represented by an ordered sequence of zero or more shape points
<traffic> segment of a road network
NOTE 1 to entry While highway links are generally separated by one data collection node (such as an RSE or a vehicle detector station), local road links tend to be limited by intersections with cross streets.
basic component of the road section entity that represents left or right side of a link and corresponds to one or more unique combinations of a navigable feature and a house number range
aggregation of linearly connected regular links present in the lowest level as a simplified representation of the road network in higher levels
ordered list of route links, or of stop points respectively, defining a single path through the transport network, with a direction
attribute of place entity, classifying into highest administrative or geographic division, administrative subdivision, postal, or colloquial (e.g. regions or neighbourhoods)
NOTE Place class can be partially ordered as “place class A is below place class B“. This does not imply strict or complete containment.
attribute of road section entity that specifies the type of house number ranges
EXAMPLE Distinction between base address, county address, commercial address, etc., or no address.
road section which is not part of the location to be referenced, but connected to it via an at least trivalent junction
reference source of sufficient Completeness and/or accuracy that may be substituted for Field verification when measuring the Completeness and/or accuracy of map database Features, Attributes, or properties
point having known coordinates in the real world and identifiable with a corresponding point in a map or an aerial photograph or satellite image
zero-dimensional element that is a topological junction of two or more edges, or an end point of an edge
NOTE A node is created for topologically significant points, such as simple intersections of roads or other linear features including boundaries but also for locations such as electric beacons, kilometre-posts or sensors detecting traffic flows, being significant points specified in a map.
all transportation elements and all services, including their relationships to transportation elements