ISO/TS 21219-22:2017

Intelligent transport systems — Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) — Part 22: OpenLR location referencing (TPEG2-OLR)

ISO/TS 21219-22:2017 specifies the logical data format of OpenLRTM location references and general requirements of the method in Clause 6 and defines the structure of the TPEG toolkit for OpenLR location referencing (OLR) in Clauses 7, 8 and 9. The toolkit is intended to be used in the TPEG location referencing container (TPEG-LRC). OpenLR? has been designed for the use case of transferring traffic information from a centre to in-vehicle systems, built-in or used as an add-on (PND, smart phone). The information transferred can consist of the current traffic situation at a certain location, a traffic forecast or special alerts. The corresponding locations are roads, a list of connected roads, points of interest, or areas. In order to transmit location information from a sending to a receiving side, the OpenLRTM method defines rules for generating map-independent location references, that is, the actual location references are generated dynamically not requiring use of pre-defined location references.

Systèmes intelligents de transport — Informations sur le trafic et le tourisme via le groupe expert du protocole de transport, génération 2 (TPEG2) — Partie 22: Référencement d'Emplacement OpenLR (TPEG2-OLR)

General Information

• Status: Published
• Publication Date: 13-Jun-2017
• ICS: 03.220.01 - Transport in general
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204/WG 10 - Traveller information systems
• Current Stage: 9060 - Close of review
• Start Date: 02-Dec-2023

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 21219-22
First edition
2017-06
Intelligent transport systems —
Traffic and travel information (TTI)
via transport protocol experts group,
generation 2 (TPEG2) —
Part 22:
OpenLR location referencing
(TPEG2-OLR)
Systèmes intelligents de transport — Informations sur le trafic et le
tourisme via le groupe expert du protocole de transport, génération 2
(TPEG2) —
Partie 22: Référencement d’Emplacement OpenLR (TPEG2-OLR)
Reference number
ISO/TS 21219-22:2017(E)
ISO 2017
---------------------- Page: 1 ----------------------
ISO/TS 21219-22:2017(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form

or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior

written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of

the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2017 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 21219-22:2017(E)
Contents Page

Foreword ..........................................................................................................................................................................................................................................v

Introduction ................................................................................................................................................................................................................................vi

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Abbreviated terms .............................................................................................................................................................................................. 3

5 Toolkit specific constraints ....................................................................................................................................................................... 4

5.1 Version number signalling ............................................................................................................................................................ 4

5.2 Extension ..................................................................................................................................................................................................... 4

6 OLR structure ........................................................................................................................................................................................................... 4

6.1 Location types.......................................................................................................................................................................................... 4

6.1.1 Supported location types .......................................................................................................................................... 4

6.1.2 Linear locations ................................................................................................................................................................ 5

6.1.3 Point locations ................................................................................................................................................................... 6

6.1.4 Area locations ..................................................................................................................................................................... 8

6.2 Requirements ........................................................................................................................................................................................11

6.2.1 General...................................................................................................................................................................................11

6.2.2 Map requirements .......................................................................................................................................................11

6.2.3 Location properties ....................................................................................................................................................12

6.3 Logical data format specification .........................................................................................................................................13

6.3.1 General...................................................................................................................................................................................13

6.3.2 Building blocks ...............................................................................................................................................................14

6.3.3 Additional data ...............................................................................................................................................................18

6.3.4 Location reference point ........................................................................................................................................20

6.4 Data format rules ...............................................................................................................................................................................26

6.4.1 OpenLR™ rules ................................................................................................................................................................26

6.4.2 Overview of the data format rules .................................................................................................................27

6.5 Physical representations of geo-coordinates .............................................................................................................28

6.5.1 General...................................................................................................................................................................................28

6.5.2 Absolute geo-coordinates .....................................................................................................................................28

6.5.3 Relative geo-coordinates........................................................................................................................................28

7 OLR message components .......................................................................................................................................................................29

7.1 OpenLRLocationReference ........................................................................................................................................................29

7.2 AbstractLocationReference .......................................................................................................................................................29

7.3 LinearLocationReference ............................................................................................................................................................30

7.4 GeoCoordinateLocationReference.......................................................................................................................................30

7.5 PointAlongLineLocationReference .....................................................................................................................................31

7.6 POIWithAccessPointLocationReference ........................................................................................................................32

7.7 CircleLocationReference ..............................................................................................................................................................33

7.8 PolygonLocationReference ........................................................................................................................................................34

7.9 RectangleLocationReference....................................................................................................................................................35

7.10 GridLocationReference .................................................................................................................................................................35

7.11 ClosedLinearLocationReference ...........................................................................................................................................36

7.12 LineProperties ......................................................................................................................................................................................37

7.13 PathProperties .....................................................................................................................................................................................38

7.14 LocationDescription ........................................................................................................................................................................38

7.15 AbstractShape .......................................................................................................................................................................................38

7.16 Shape ............................................................................................................................................................................................................38

7.17 Path ................................................................................................................................................................................................................39

8 OLR datatypes.......................................................................................................................................................................................................39

8.1 AbsoluteGeoCoordinate ...............................................................................................................................................................39

© ISO 2017 – All rights reserved iii
---------------------- Page: 3 ----------------------
ISO/TS 21219-22:2017(E)

8.2 RelativeGeoCoordinate .................................................................................................................................................................39

8.3 Bearing ........................................................................................................................................................................................................39

8.4 DistanceMetresMax15000 .........................................................................................................................................................40

8.5 FirstLocationReferencePoint ...................................................................................................................................................40

8.6 IntermediateLocationReferencePoint ..............................................................................................................................40

8.7 LastLocationReferencePoint ....................................................................................................................................................40

8.8 PointLocationLineReferenceData ........................................................................................................................................41

8.9 Rectangle ...................................................................................................................................................................................................41

9 OLR tables .................................................................................................................................................................................................................41

9.1 olr001:F unctionalRoadClass ....................................................................................................................................................41

9.2 olr002:F ormOfWay ...........................................................................................................................................................................42

9.3 olr003:Orientation ............................................................................................................................................................................42

9.4 olr004:SideOfR oad ...........................................................................................................................................................................42

Annex A (normative) TPEG application, TPEG-Binary Representation ........................................................................43

Annex B (normative) TPEG application, TPEG-ML Representation ..................................................................................51

Bibliography .............................................................................................................................................................................................................................59

iv © ISO 2017 – All rights reserved
---------------------- Page: 4 ----------------------
ISO/TS 21219-22:2017(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

through ISO technical committees. Each member body interested in a subject for which a technical

committee has been established has the right to be represented on that committee. International

organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.

ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation on the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO’s adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following

URL: w w w . i s o .org/ iso/ foreword .html.

This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.

A list of all parts in the ISO 21219 series can be found on the ISO website.
© ISO 2017 – All rights reserved v
---------------------- Page: 5 ----------------------
ISO/TS 21219-22:2017(E)
Introduction
History

TPEG technology was originally proposed by the European Broadcasting Union (EBU) Broadcast

Management Committee, who established the B/TPEG project group in the autumn of 1997 with a brief

to develop, as soon as possible, a new protocol for broadcasting traffic and travel-related information

in the multimedia environment. TPEG technology, its applications and service features were designed

to enable travel-related messages to be coded, decoded, filtered and understood by humans (visually

and/or audibly in the user’s language) and by agent systems. Originally, a byte-oriented data stream

format, which may be carried on almost any digital bearer with an appropriate adaptation layer,

was developed. Hierarchically structured TPEG messages from service providers to end-users were

designed to transfer information from the service provider database to an end-user’s equipment.

One year later, in December 1998, the B/TPEG group produced its first EBU specifications. Two

documents were released. Part 2 (TPEG-SSF, which became ISO/TS 18234-2) described the syntax,

semantics and framing structure, which was used for all TPEG applications. Meanwhile, Part 4 (TPEG-

RTM, which became ISO/TS 18234-4) described the first application for road traffic messages.

Subsequently, in March 1999, CEN/TC 278, in conjunction with ISO/TC 204, established a group

comprising members of the former EBU B/TPEG and this working group continued development work.

Further parts were developed to make the initial set of four parts, enabling the implementation of a

consistent service. Part 3 (TPEG-SNI, ISO/TS 18234-3) described the service and network information

application used by all service implementations to ensure appropriate referencing from one service

source to another.

Part 1 (TPEG-INV, ISO/TS 18234-1) completed the series by describing the other parts and their

relationship; it also contained the application IDs used within the other parts. Additionally, Part 5, the

public transport information application (TPEG-PTI, ISO/TS 18234-5), was developed. The so-called

TPEG-LOC location referencing method, which enabled both map-based TPEG-decoders and non-map-

based ones to deliver either map-based location referencing or human readable text information, was

issued as ISO/TS 18234-6 to be used in association with the other applications parts of the ISO/TS 18234

series to provide location referencing.
The ISO/TS 18234 series has become known as TPEG Generation 1.
TPEG Generation 2

When the Traveller Information Services Association (TISA), derived from former forums, was

inaugurated in December 2007, TPEG development was taken over by TISA and continued in the TPEG

applications working group.

It was about this time that the (then) new Unified Modelling Language (UML) was seen as having major

advantages for the development of new TPEG applications in communities who would not necessarily

have binary physical format skills required to extend the original TPEG TS work. It was also realized

that the XML format for TPEG described within the ISO/TS 24530 series (now superseded) had a greater

significance than previously foreseen, especially in the content-generation segment and that keeping

two physical formats in synchronism, in different standards series, would be rather difficult.

As a result, TISA set about the development of a new TPEG structure that would be UML based. This has

subsequently become known as TPEG Generation 2.

TPEG2 is embodied in the ISO/TS 21219 series and it comprises many parts that cover introduction,

rules, toolkit and application components. TPEG2 is built around UML modelling and has a core of rules

that contain the modelling strategy covered in ISO/TS 21219-2, ISO/TS 21219-3 and ISO/TS 21219-

4 and the conversion to two current physical formats: binary and XML; others could be added in the

future. TISA uses an automated tool to convert from the agreed UML model XMI file directly into an MS

Word document file, to minimize drafting errors, that forms the annex for each physical format.

vi © ISO 2017 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/TS 21219-22:2017(E)

TPEG2 has a three container conceptual structure: message management (ISO/TS 21219-6), application

(several parts) and location referencing (ISO/TS 21219-7). This structure has flexible capability and

can accommodate many differing use cases that have been proposed within the TTI sector and wider

for hierarchical message content.

TPEG2 also has many location referencing options as required by the service provider community, any

of which may be delivered by vectoring data included in the location referencing container.

The following classification provides a helpful grouping of the different TPEG2 parts according to their

intended purpose.

— Toolkit parts: TPEG2-INV (ISO/TS 21219-1), TPEG2-UML (ISO/TS 21219-2), TPEG2-UBCR

(ISO/TS 21219-3), TPEG2-UXCR (ISO/TS 21219-4), TPEG2-SFW (ISO/TS 21219-5), TPEG2-MMC

(ISO/TS 21219-6), TPEG2-LRC (ISO/TS 21219-7), TPEG2-LTE (ISO/TS 21219-24).
— Special applications: TPEG2-SNI (ISO/TS 21219-9), TPEG2-CAI (ISO/TS 21219-10).

— Location referencing: TPEG2-ULR (ISO/TS 21219-11 ), TPEG2-GLR (ISO/TS 21219-21 ), TPEG2-

OLR (ISO/TS 21219-22).

— Applications: TPEG2-PKI (ISO/TS 21219-14), TPEG2-TEC (ISO/TS 21219-15), TPEG2-FPI

(ISO/TS 21219-16), TPEG2-TFP (ISO/TS 21219-18), TPEG2-WEA (ISO/TS 21219-19), TPEG2-RMR

(ISO/TS 21219-23), TPEG2-EMI (ISO/TS 21219-25).

TPEG2 has been developed to be broadly (but not totally) backward compatible with TPEG1 to assist

in transitions from earlier implementations, while not hindering the TPEG2 innovative approach and

being able to support many new features, such as dealing with applications having both long-term,

unchanging content and highly dynamic content, such as parking information.

This document is based on the TISA specification technical/editorial version reference:

SP14006/1.0/002.
1) Under development.
© ISO 2017 – All rights reserved vii
---------------------- Page: 7 ----------------------
TECHNICAL SPECIFICATION ISO/TS 21219-22:2017(E)
Intelligent transport systems — Traffic and travel
information (TTI) via transport protocol experts group,
generation 2 (TPEG2) —
Part 22:
OpenLR location referencing (TPEG2-OLR)
1 Scope

This document specifies the logical data format of OpenLR location references and general

requirements of the method in Clause 6 and defines the structure of the TPEG toolkit for OpenLR

location referencing (OLR) in Clauses 7, 8 and 9. The toolkit is intended to be used in the TPEG location

referencing container (TPEG-LRC).

OpenLR™ has been designed for the use case of transferring traffic information from a centre to in-

vehicle systems, built-in or used as an add-on (PND, smart phone). The information transferred can

consist of the current traffic situation at a certain location, a traffic forecast or special alerts. The

corresponding locations are roads, a list of connected roads, points of interest, or areas.

In order to transmit location information from a sending to a receiving side, the OpenLR method

defines rules for generating map-independent location references, that is, the actual location references

are generated dynamically not requiring use of pre-defined location references.
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

ISO/TS 21219-1, Intelligent transport systems — Traffic and travel information (TTI) via transport protocol

experts group, generation 2 (TPEG2) — Part 1: Introduction, numbering and versions (TPEG2-INV)

3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http:// www .electropedia .org/
— ISO Online browsing platform: available at http:// www .iso .org/ obp
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

© ISO 2017 – All rights reserved 1
---------------------- Page: 8 ----------------------
ISO/TS 21219-22:2017(E)
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
2 © ISO 2017 – All rights reserved
---------------------- Page: 9 ----------------------
ISO/TS 21219-22:2017(E)
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.

4 Abbreviated terms
ADD against driving direction
BEAR bearing
CEN Comité Européen de Normalisation
COORD coordinates
DESC location description
DNP distance to next point
FOW form of way
FRC functional road class
FUZ fuzzy area
lat latitude
LFRCNP lowest functional road class to next point
lon longitude
LRP location reference point
LRC location reference container
n.a. not available
NCOLS number of columns
NOFF negative offset
NROWS number of rows
ORI orientation
POFF positive offset
POI point of interest
RAD radius
SFW TPEG service framework: modelling and conversion rules
© ISO 2017 – All rights reserved 3
---------------------- Page: 10 ----------------------
ISO/TS 21219-22:2017(E)
SHP shape
SOR side of road
SRBL side road bearing left
SRBR side road bearing right
TISA Traveller Information Services Association
TPEG Transport Protocol Expert Group
TTI traffic and travel information
UML Unified Modelling Language
XML eXtensible Markup Language
5 Toolkit specific constraints
5.1 Version number signalling

Version numbering is used to track the separate versions of a toolkit through its development and

deployment. The differences between these versions may have an impact on client devices.

The version numbering principle is defined in ISO/TS 21219-1.

Table 1 shows the current version numbers for signalling the OLR version in use within this toolkit’s

top level component (see 7.1) and within TPEG-ML.
Table 1 — Current version number for signalling of OLR
Major version number 1
Minor version number 0
5.2 Extension

Future toolkit extensions may insert new components without losing backward compatibility. That

means an OLR decoder shall be able to detect and skip unknown components.
6 OLR structure
6.1 Location types
6.1.1 Supported location types

OpenLR™ supports several types of locations. Table 2 lists the supported types and also provides a link

to the clause where the specific type is explained in detail.
Table 2 — Supported location types
Name Category Details
Linear location Linear location See 6.1.2
Geo-Coordinate Point location See 6.1.3.2
PointAlongLine Point location See 6.1.3.3
4 © ISO 2017 – All rights reserved
---------------------- Page: 11 ----------------------
ISO/TS 21219-22:2017(E)
Table 2 (continued)
Name Cate
...