Intersection Link

data model entity that provides the Links in the Intersection used for determining the path through an intersection

data model entity that provides the Links in the Intersection used for determining the path through an intersection

Intersection Link Shape

data model entity that provides the shape of the Intersection Link for displaying a path

data model entity that provides the shape of the Intersection Link for displaying a path

Intersection Name

data model entity that provides the name of an Intersection. An Intersection may have one or more names corresponding to the direction of entering into the intersection

data model entity that provides the name of an Intersection. An Intersection may have one or more names corresponding to the direction of entering into the intersection

intersection point (IP)

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.

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.

items

named sequences of characters from the DNF character set which are used to form the DNF notation

named sequences of characters from the DNF character set which are used to form the DNF notation

junction

navigable feature which is either a named GDF junction or named GDF intersection, and that relates a named navigable feature to a set of links and nodes and a place

navigable feature which is either a named GDF junction or named GDF intersection, and that relates a named navigable feature to a set of links and nodes and a place

Lane Shape

data model entity that provides the shape geometry of the lane

data model entity that provides the shape geometry of the lane

WL

lane width

layer

sub-set of map data resulting from a subdivision of data of the same coverage area based on contents (similar to ISO 14825 GDF layer) and which is typically related to one or only a few of the application categories
EXAMPLE: District name, which is one of the data items for Route Guidance applications, is included in a layer.

sub-set of map data resulting from a subdivision of data of the same coverage area based on contents (similar to ISO 14825 GDF layer) and which is typically related to one or only a few of the application categories
EXAMPLE: District name, which is one of the data items for Route Guidance applications, is included in a layer.

level

subset of map data resulting from a classification of data of the same semantic content based on the level of detail or density, related to the concept of different map scales
NOTE: Level 0 is considered the lowest level (greatest detail); higher levels are numbered level 1, level 2, etc.
EXAMPLE: Map display data may be organised into 6 levels representing different zoom scales.

subset of map data resulting from a classification of data of the same semantic content based on the level of detail or density, related to the concept of different map scales
NOTE: Level 0 is considered the lowest level (greatest detail); higher levels are numbered level 1, level 2, etc.
EXAMPLE: Map display data may be organised into 6 levels representing different zoom scales.

line feature

one-dimensional Feature defined as a sequence of one or more Edges

one-dimensional Feature defined as a sequence of one or more Edges

line string

curve composed of straight-line segments

curve composed of straight-line segments

linear location

spatial location that extends between two point locations along a defined path
NOTE 1 to entry: The path can exhibit 3-dimensional characteristics.

spatial location that extends between two point locations along a defined path
NOTE 1 to entry: The path can exhibit 3-dimensional characteristics.

linear referencing (LR)

specification of a location relative to a linear element as a measurement along that element

specification of a location relative to a linear element as a measurement along that element

link

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
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…

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
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.

Link Cost

data model entity that provides the time or monetary cost of the Link for calculating route

data model entity that provides the time or monetary cost of the Link for calculating route

link identifier (link ID)

identifier that is uniquely assigned to a link
NOTE 1 to entry: A link identifier can be arbitrary or can be assigned by convention, to ensure that no multiple occurrences of the same identifier will be used within one instance of a network or map database.

identifier that is uniquely assigned to a link
NOTE 1 to entry: A link identifier can be arbitrary or can be assigned by convention, to ensure that no multiple occurrences of the same identifier will be used within one instance of a network or map database.

link location

pre-coded location reference

pre-coded location reference

link travel time

travel time of a specific link

travel time of a specific link

LKAS_curvature_rate_max

maximum rate of change of curvature which is allowed for the curve test track

maximum rate of change of curvature which is allowed for the curve test track

LKAS_curve_time

minimum duration of the curve test after entering the curve

minimum duration of the curve test after entering the curve

LKAS_Lat_Acel_max

maximum lateral acceleration which is allowed to be induced by a lane keeping action

maximum lateral acceleration which is allowed to be induced by a lane keeping action

LKAS_Lat_Jerk_max

maximum lateral jerk which is allowed to be induced by a lane keeping action

maximum lateral jerk which is allowed to be induced by a lane keeping action

LKAS_Offset_max

maximum value by which the outer edges of the tyres of the vehicle are allowed to exceed the lane boundary

maximum value by which the outer edges of the tyres of the vehicle are allowed to exceed the lane boundary

local dynamic map (LDM)

conceptual data store which is embedded in an ITS station and which contains topographical, positional and status information

conceptual data store which is embedded in an ITS station and which contains topographical, positional and status information

locally determined route guidance system (LDRG)

system which provides a driver with step-by-step driving instructions that are determined by an on-vehicle system
NOTE: The system typically consists of a display screen, a computer, routing and guidance software, a navigable map database, and positioning equipment to track the vehicle's location as it proceeds along its path.

system which provides a driver with step-by-step driving instructions that are determined by an on-vehicle system
NOTE: The system typically consists of a display screen, a computer, routing and guidance software, a navigable map database, and positioning equipment to track the vehicle's location as it proceeds along its path.

location

particular place or position
NOTE 1 to entry: The term “location” by itself is a broad term that can be used to reference spatial, computer memory, imaginary and other locations.

particular place or position
NOTE 1 to entry: The term “location” by itself is a broad term that can be used to reference spatial, computer memory, imaginary and other locations.

Location Image

data model entity that provides a background image of the Road Element and the intersection upon which guidance information is displayed

data model entity that provides a background image of the Road Element and the intersection upon which guidance information is displayed

location point (LP)

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.

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.

location reference core

point or set of points that is available in any location reference

point or set of points that is available in any location reference