ISO/TS 21219-7:2017 高度道路交通システム—輸送プロトコル専門家グループ、第2世代（TPEG2）を介した交通および旅行情報（TTI）—パート7：位置参照コンテナ（TPEG2-LRC） | ページ 6

3.1

TPEG client

end user’s device, usually consisting of a bearer level tuner/receiver, a TPEG decoder and a human machine interface

3.2

dynamic location reference

location reference generated on the fly based on geographic properties in a digital map database

3.3

location referencing

means to provide information that allows a system to identify accurately a location

Note 1 to entry: The content of a location reference allows the location to be presented in a plain-language manner directly to the end-user (i.e. text, speech or icons) or to be used for navigational purposes, for example, for map-based systems.

3.4

location referencing container

concept applied to the grouping of all the location referencing elements, of a TPEG message, together in one place

3.5

message

collection of coherent information sent through the information channel describing an event, a collection of related events, or status information and including message management information

3.6

pre-coded location reference

location reference using a unique identifier that is agreed upon in both sender and receiver system to select a location from a set of agreed locations

3.7

TPEG server

functionality used by the service provider to distribute or deliver the TPEG data to TPEG client devices

3.8

TPEG2-ULR (universal location reference)

dynamic location referencing method which is designed for delivering messages to human end-users with some definitions having a meaning different from those found in other location referencing systems

Note 1 to entry: An important aspect of the TPEG2-ULR referencing method is that a location description may be created on-the-fly by the service provider (TPEG server) when needed. It may then be interpreted and used by the TPEG-decoder (TPEG client) and then discarded. The pre-creation of codes and the use of a database and code maintenance are entirely avoided.

Note 2 to entry: TPEG-LOC has been deprecated in TPEG2 and is now replaced in TPEG2 with TPEG2-ULR (TISA specification SP13008) as one of the TPEG2 location referencing methods.