ISO/TS 21219-22:2017 高度道路交通システム—トランスポートプロトコルエキスパートグループ、第2世代（TPEG2）を介した交通および旅行情報（TTI）—パート22：OpenLRロケーション参照（TPEG2-OLR） | ページ 6

3.1

area

two-dimensional part of the surface of the earth which is bounded by a closed curve

Note 1 to entry: An area may cover parts of the road network, covering several roads or parts of roads.

3.2

decoder

software component which decodes a location code and finds the corresponding location back in a map

3.3

encoder

software component which generates a location code for a location in a map

3.4

intermediate/intermediate location reference point

internal location reference point (LRP) which is neither the start LRP nor the end LRP

3.5

line

one-dimensional representation of a road or part of road in a road network

Note 1 to entry: A line starts and ends at a node. It is directed. This means two-way traffic flows are represented by two (directed) lines, one per direction.

3.6

location

specification of the position on the earth surface of an object in a digital map

3.7

location reference

location code, created according to a specific set of rules, used to reference a location

3.8

location reference path

route in a road network in a digital map which is referenced by the location reference

Note 1 to entry: Note1 to entry: This path might be longer than the location itself.

3.9

location reference point

point representing a real-world point location

Note 1 to entry: Besides the position or line information, additional data may be used to further specify the character of a location.

3.10

map

geospatial representation of an area on the earth surface

3.11

node

zero-dimensional object in the road network acting as start and end for lines

3.12

offset

specification of a position along a referenced path to indicate the start or the end of a location

3.13

orientation

describes the relationship between a point of interest and the direction of a referenced line

Note 1 to entry: The point may be directed in the same direction as the line, against that direction, in both directions, or the direction of the point might be unknown.

3.14

point

zero-dimensional element that specifies a spatial location by a coordinate pair

3.15

route

collection of line objects in a digital map connecting a departure location and a destination location, defined according to certain criteria which might include time distance or cost

3.16

side of road

relationship between a point of interest and a referenced line

Note 1 to entry: The point can be on the right side of the reference line, on the left side of the reference line, on both sides of the reference line or directly on the reference line, in the position direction of the reference line.