Traffic and Travel Information (TTI) - TTI via Transport Protocol Expert Group (TPEG) data-streams - Part 4: Road Traffic Message (RTM) application (ISO/TS 18234-4:2006)

This document establishes the method of delivering Road Traffic Messages within a TPEG service. The TPEG-RTM application is designed to allow the efficient and language independent delivery of road information directly from service provider to end- users. The information provided relates to event and some status information on the road network and on associated infrastructure affecting a road journey. For example, limited information about abnormal operation of links in the network may be included, such as ferries, liftingbridges, etc. The term "application" is used in TPEG specifications to describe specific applications, such as in this case the Road Traffic Message application, which comprises three information containers: the Message Management Container, the Application Event Container and the TPEG-Location Container. The first two Containers are fully described herein and the TPEG-Location Container is described in CEN ISO/TS 18234-6. Each TPEG application (e.g. TPEG-RTM) is assigned a unique number that is called the application identification (AID). An AID is defined whenever a new application is developed. The AID is used within the TPEG-Service and Network Information Application (CEN ISO/TS 18234-3) to indicate how to process TPEG content and allows routing of data to an appropriate application decoder. AID = 0001 is assigned to the TPEG-Road Traffic Message application, described in this specification. A hierarchical methodology has been developed to allow the creation of messages from a set of TPEG-RTM tables, which are essentially word oriented and cover most needs. Many o f the TTI descriptive words, in the TPEG-RTM tables, were obtained from the DATEX dictionary (ENV 13106), which embodies European TTI knowledge of the last ten years or more, including a deconstruct of the phrase oriented RDS-TMC events list (EN IS O 14819-2). These TPEG-RTM tables (essentially word oriented data object dictionaries) comprise a wide ranging ability to describe a TTI event and some status information, introducing new precision in a number of areas such as "vehicle types", "positional information on the carriageway" and "diversion routing advice".

Reise- und Verkehrsinformation (TTI) ) - TTI über Datenströme der Transportprotokoll Expertengruppe (TPEG) - Teil 4: Anwendungen für Straßenverkehrsmeldungen (RTM) (ISO/TS 18234-4:2006)

Informations sur le trafic et le tourisme (TTI) - Messages TTI via les flux de données du groupe d'experts du protocole de transport (TPEG) - Partie 4: Application de message de trafic sur route (RTM) (ISO/TS 18234-4:2006)

Prometne in potovalne informacije (TTI) – TTI preko toka podatkov ekspertne skupine za prometne in potovalne protokole (TPEG) – 4. del: Aplikacija sporočila cestnega prometa (RTM) (ISO/TS 18234-4:2006)

General Information

Status
Published
Publication Date
30-Jun-2006
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Jul-2006
Due Date
01-Jul-2006
Completion Date
01-Jul-2006

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TS CEN ISO/TS 18234-4:2006
01-julij-2006
3URPHWQHLQSRWRYDOQHLQIRUPDFLMH 77, ±77,SUHNRWRNDSRGDWNRYHNVSHUWQH
VNXSLQH]DSURPHWQHLQSRWRYDOQHSURWRNROH 73(* ±GHO$SOLNDFLMDVSRURþLOD
FHVWQHJDSURPHWD 570  ,6276
Traffic and Travel Information (TTI) - TTI via Transport Protocol Expert Group (TPEG)
data-streams - Part 4: Road Traffic Message (RTM) application (ISO/TS 18234-4:2006)
Reise- und Verkehrsinformation (TTI) ) - TTI über Datenströme der Transportprotokoll
Expertengruppe (TPEG) - Teil 4: Anwendungen für Straßenverkehrsmeldungen (RTM)
(ISO/TS 18234-4:2006)
Informations sur le trafic et le tourisme (TTI) - Messages TTI via les flux de données du
groupe d'experts du protocole de transport (TPEG) - Partie 4: Application de message de
trafic sur route (RTM) (ISO/TS 18234-4:2006)
Ta slovenski standard je istoveten z: CEN ISO/TS 18234-4:2006
ICS:
03.220.01
35.240.60
SIST-TS CEN ISO/TS 18234-4:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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TECHNICAL SPECIFICATION CEN ISO/TS 18234-4

SPÉCIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION June 2006
ICS 35.240.60; 03.220.01
English Version
Traffic and Travel Information (TTI) - TTI via Transport Protocol
Expert Group (TPEG) data-streams - Part 4: Road Traffic
Message (RTM) application (ISO/TS 18234-4:2006)
Informations sur le trafic et le tourisme (TTI) - Messages Reise- und Verkehrsinformation (TTI) ) - TTI über
TTI via les flux de données du groupe d'experts du Datenströme der Transportprotokoll Expertengruppe
protocole de transport (TPEG) - Partie 4: Application de (TPEG) - Teil 4: Anwendungen für
message de trafic sur route (RTM) (ISO/TS 18234-4:2006) Straßenverkehrsmeldungen (RTM) (ISO/TS 18234-4:2006)
This Technical Specification (CEN/TS) was approved by CEN on 28 September 2004 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their
comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available
promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)
until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.






EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN ISO/TS 18234-4: 2006 E
worldwide for CEN national Members.

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CEN ISO/TS 18234-4:2006 (E)





Foreword


This document (CEN ISO/TS 18234-4:2006) has been prepared by Technical Committee
CEN/TC 278 "Road transport and traffic telematics", the secretariat of which is held by NEN, in
collaboration with Technical Committee ISO/TC 204 "Transport information and control
systems".

According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to announce this CEN Technical Specification: Austria,
Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United
Kingdom.
2

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TECHNICAL ISO/TS
SPECIFICATION 18234-4
First edition
2006-06-01

Traffic and Travel Information (TTI) — TTI
via Transport Protocol Expert Group
(TPEG) data-streams —
Part 4:
Road Traffic Message (RTM) application
Informations sur le trafic et le tourisme (TTI) — Messages TTI via les
flux de données du groupe d'experts du protocole de transport
(TPEG) —
Partie 4: Application de message de trafic sur route (RTM)




Reference number
ISO/TS 18234-4:2006(E)
©
ISO 2006

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ISO/TS 18234-4:2006(E)
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ii © ISO 2006 – All rights reserved

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ISO/TS 18234-4:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 2
4 Symbols and abbreviations . 4
5 RTM application overview. 6
5.1 Introduction . 6
5.2 TPEG-message concept. 8
5.3 TPEG-messages delivering additional information . 9
5.4 Elements of a TPEG road traffic message .9
5.5 Message management. 11
5.6 Event description. 13
5.7 Location Referencing . 14
6 RTM container. 14
6.1 Structure of road traffic messages . 14
6.2 Notation . 16
6.3 RTM application component frame. 17
7 Message management container . 18
7.1 Mandatory elements . 18
7.2 Date and time elements. 18
7.3 Severity and reliability elements . 19
7.4 Coding of the message management container. 19
8 Event container . 21
8.1 Event description. 21
8.2 Level one classes . 21
8.3 Coding of the events container . 26
8.4 RTM application primitives . 58
Annex A (informative) Conversion formulae . 96
Bibliography . 98

© ISO 2006 – All rights reserved iii

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ISO/TS 18234-4:2006(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of normative document:
— an ISO Publicly Available Specification (ISO/PAS) represents an agreement between technical experts in
an ISO working group and is accepted for publication if it is approved by more than 50 % of the members
of the parent committee casting a vote;
— an ISO Technical Specification (ISO/TS) represents an agreement between the members of a technical
committee and is accepted for publication if it is approved by 2/3 of the members of the committee casting
a vote.
An ISO/PAS or ISO/TS is reviewed after three years in order to decide whether it will be confirmed for a
further three years, revised to become an International Standard, or withdrawn. If the ISO/PAS or ISO/TS is
confirmed, it is reviewed again after a further three years, at which time it must either be transformed into an
International Standard or be withdrawn.
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.
ISO/TS 18234-4 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
ISO/TS 18234 consists of the following parts, under the general title Traffic and Travel Information (TTI) — TTI
via Transport Protocol Expert Group (TPEG) data-streams:
⎯ Part 1: Introduction, numbering and versions
⎯ Part 2: Syntax, Semantics and Framing Structure (SSF)
⎯ Part 3: Service and Network Information (SNI) application
⎯ Part 4: Road Traffic Message (RTM) application
⎯ Part 5: Public Transport Information (PTI) application
⎯ Part 6: Location referencing applications


iv © ISO 2006 – All rights reserved

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ISO/TS 18234-4:2006(E)
Introduction
TPEG technology uses a byte-oriented stream format, which may be carried on almost any digital bearer with
an appropriate adaptation layer. TPEG-messages are delivered from service providers to end-users, and are
used to transfer application data from the database of a service provider to a user’s equipment.
This document describes the Road Traffic Message application in detail.
It should be remembered that the TPEG-RTM has been derived from earlier work that resulted in the
RDS-TMC standards (EN ISO 14819-2). Upon analysis, RDS-TMC can be seen to drift into other application
areas, where it covers a few public transport, parking and weather messages. TPEG-RTM is just one of
several applications required to provide a fully comprehensive traffic and travel information service, for
example a service is likely to need public transport information, parking information and weather information –
these are or will be the subject of other TPEG-application specifications.
Nevertheless, TPEG-RTM, where reasonable, has included the ability to convey similar content to RDS-TMC,
in order to offer considerable backwards compatibility and the prospect of automatically generating RDS-TMC
messages from TPEG-RTM messages.
The Broadcast Management Committee of the European Broadcast Union (EBU) established the B/TPEG
project group in autumn 1997 with the mandate to develop, as soon as possible, a new protocol for
broadcasting traffic and travel-related information in the multimedia environment. The TPEG technology, its
applications and service features are 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.
One year later in December 1998, the B/TPEG group produced its first public specifications. Two documents
were released. Part 2 (TPEG-SSF, CEN ISO/TS 18234-2) described the Syntax, Semantics and Framing
structure, which will be used for all TPEG applications. Part 4 (TPEG-RTM, CEN ISO/TS 18234-4) described
the first application, for Road Traffic Messages.
CEN/TC 278/WG 4, in conjunction with ISO/TC 204/WG 10, established a project group comprising the
members of B/TPEG and they have continued the work concurrently since March 1999. Since then two further
parts have been developed to make the initial complete set of four parts, enabling the implementation of a
consistent service. Part 3 (TPEG-SNI, CEN ISO/TS 18234-3)) describes the Service and Network Information
Application, which is likely to be used by all service implementations to ensure appropriate referencing from
one service source to another. Part 1 (TPEG-INV, CEN ISO/TS 18234-1) completed the work, by describing
the other parts and their relationships; it also contains the application IDs used within the other parts.
In April 2000, the B/TPEG group released revised Parts 1 to 4, all four parts having been reviewed and
updated in the light of initial implementation results. Thus a consistent suite of specifications, ready for wide
scale implementation, was submitted to the CEN/ISO commenting process.
In November 2001, after extensive response to the comments received and from many internally suggested
improvements, all four parts were completed for the next stage: the Parallel Formal Vote in CEN and ISO. But
a major step forward has been to develop the so-called TPEG-Loc location referencing method, which
enables both map-based TPEG-decoders and non map-based ones to deliver either map-based location
referencing or human readable information. Part 6 (TPEG-Loc, CEN ISO/TS 18234-6) is now a separate
specification and is used in association with the other parts of CEN ISO/TS 18234 to provide comprehensive
location referencing. Additionally Part 5, the Public Transport Information Application (TPEG-PTI, CEN
ISO/TS 18234-5), has been developed and been through the commenting process.
This Technical Specification, CEN ISO/TS 18234-4, provides a full specification provides a full specification for
the Road Traffic Message application.
© ISO 2006 – All rights reserved v

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ISO/TS 18234-4:2006(E)
During the development of the TPEG technology a number of versions have been documented and various
trials implemented using various versions of the specifications. At the time of the publication of this Technical
Specification, all parts are fully inter-workable and no specific dependencies exist. This Technical
Specification has the technical version number TPEG-RTM_3.0/003.


vi © ISO 2006 – All rights reserved

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TECHNICAL SPECIFICATION ISO/TS 18234-4:2006(E)

Traffic and Travel Information (TTI) — TTI via Transport
Protocol Expert Group (TPEG) data-streams —
Part 4:
Road Traffic Message (RTM) application
1 Scope
This document establishes the method of delivering Road Traffic Messages within a TPEG service. The
TPEG-RTM application is designed to allow the efficient and language independent delivery of road
information directly from service provider to end-users. The information provided relates to event and some
status information on the road network and on associated infrastructure affecting a road journey. For example,
limited information about abnormal operation of links in the network may be included, such as ferries, lifting-
bridges, etc.
The term “application” is used in TPEG specifications to describe specific applications, such as in this case
the Road Traffic Message application, which comprises three information containers: the Message
Management Container, the Application Event Container and the TPEG-Location Container. The first two
Containers are fully described herein and the TPEG-Location Container is described in CEN ISO/TS 18234-6.
Each TPEG application (e.g. TPEG-RTM) is assigned a unique number that is called the application
identification (AID). An AID is defined whenever a new application is developed. The AID is used within the
TPEG-Service and Network Information Application (CEN ISO/TS 18234-3) to indicate how to process TPEG
content and allows routing of data to an appropriate application decoder.
AID = 0001 is assigned to the TPEG-Road Traffic Message application, described in this specification.
A hierarchical methodology has been developed to allow the creation of messages from a set of TPEG-RTM
tables, which are essentially word oriented and cover most needs. Many of the TTI descriptive words, in the
TPEG-RTM tables, were obtained from the DATEX dictionary (ENV 13106), which embodies European TTI
knowledge of the last ten years or more, including a deconstruct of the phrase oriented RDS-TMC events list
(EN ISO 14819-2). These TPEG-RTM tables (essentially word oriented data object dictionaries) comprise a
wide ranging ability to describe a TTI event and some status information, introducing new precision in a
number of areas such as “vehicle types”, “positional information on the carriageway” and “diversion routing
advice”.
NOTE Explicit backwards compatibility with the RDS-TMC events list (EN ISO 14819-2) could not be achieved since
some “update classes”, such as “29 Reference to Audio Broadcasts” and “30 Service Messages”, fall outside the
TPEG-RTM remit.
2 Normative references
The following referenced documents are indispensable for the application 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/IEC 7498-1, Information technology — Open Systems Interconnection — Basic Reference Model: The
Basic Model
© ISO 2006 – All rights reserved 1

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ISO/TS 18234-4:2006(E)
ISO 8601, Data elements and interchange formats — Information interchange — Representation of dates and
times
ISO/TS 18234-1, Traffic and Travel Information (TTI) — TTI via Transport Protocol Expert Group (TPEG)
data-streams — Part 1: Introduction, Numbering and Versions
ISO/TS 18234-2, Traffic and Travel Information (TTI) — TTI via Transport Protocol Expert Group (TPEG)
data-streams — Part 2: Syntax, Semantics and Framing Structure (SSF)
ISO/TS 18234-3, Traffic and Travel Information (TTI) — TTI via Transport Protocol Expert Group (TPEG)
data-streams — Part 3: Service and Network Information (SNI) Application
ISO/TS 18234-6, Traffic and Travel Information (TTI) — TTI via Transport Protocol Expert Group (TPEG)
data-streams — Part 6: Location Referencing application
3 Terms and definitions
For the purposes of this Technical Specification, the following terms and definitions apply.
NOTE Definitions in this specification are in some cases derived from definitions found in the DATEX Data Dictionary
(ENV 13106). TPEG-RTM is completely focussed on delivering messages to end-users, so for this key operational reason
some definitions have a different meaning from that found in the DATEX Data Dictionary. These differences are
highlighted in this section.
3.1
cross reference information (CRI)
pointer to one or more messages in the same, or another TPEG service
3.2
event description (EVE)
part of a message describing the event, unplanned or planned occurrence affecting the road or transport
network, (for example the transport network in the case of a ferry carrying vehicles between parts of the road
network) or status information, including qualifiers and quantifiers
NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).
3.3
locations
see CEN ISO/TS 18234-6 for full details of the location referencing container explanations
3.4
location referencing
method for referencing locations to facilitate the exchange of location related information between different
systems
3.5
message
collection of coherent information sent through an information channel. Describes an event or a collection of
related events, or status information and including message management information. The latter is contained
in the message header
3.6
message expiry time (MET)
date and time in accordance with EN ISO 8601 when the message should be deleted from all TPEG-decoders
(used for message management purposes)
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ISO/TS 18234-4:2006(E)
3.7
message generation time (MGT)
date and time stamp in accordance with EN ISO 8601 originated at the actual time and point of message
generation (used for message management purposes)
3.8
message identifier (MID)
unique identifier for a sequence of versions of one message relating to a particular event of a particular
service component
3.9
position
defines where an event has taken place in relation to the road: driving lane 1, hard shoulder, central
reservation, etc. The driving lanes are numbered according to the usual local practice, i.e. driving lane 1 is the
lane nearest to the hard shoulder. In countries which drive on the left, driving lanes are hence numbered from
left-to-right, and in countries driving on the right, from right-to-left
3.10
severity factor (SEV)
Amount of disruption to traffic likely to be caused by a particular event
NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).
3.11
start time (STA)
date and time in accordance with EN ISO 8601 at which an event, or status information, began or is
scheduled to begin (used for presentation to the end-user)
NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).
3.12
status
characteristic of an element of the transport system for which at all times a value can be established. Status
relates to an information stream. Values can be normal or deviating from normal
3.13
stop time (STO)
date and time in accordance with EN ISO 8601 at which an event, or status information, ended or is
scheduled to end (used for presentation to the end-user)
NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).
3.14
time schedule information (TSI)
gives information about the time schedule for repetitive events within the start and stop time
3.15
unverified information (UNV)
indicates that a message includes information from an unverified source
3.16
version number (VER)
serial number to distinguish successive messages having a particular message identifier. Version numbers
are used incrementally, allowing the progress of an event to be tracked from first notification (VER = 0),
through updates, to eventual cancellation (VER = 255)
NOTE This definition varies from the DATEX Data Dictionary definition (ENV 13106).
© ISO 2006 – All rights reserved 3

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ISO/TS 18234-4:2006(E)
4 Symbols and abbreviations
For the purposes of this Technical Specification, the following abbreviations apply.
4.1
AID
Application Identification
4.2
BPN
Broadcast, Production and Networks (an EBU document publishing number system)
4.3
B/TPEG
Broadcast/TPEG (the EBU project group name for the specification drafting group)
4.4
CEN
Comité Européen de Normalisation
4.5
CRI
Cross Reference Information (see 3.1)
4.6
DAB
Digital Audio Broadcasting
4.7
DVB
Digital Video Broadcasting
4.8
EBU
European Broadcasting Union
4.9
ETSI
European Telecommunications Standards Institute
4.10
EVE
Event Description (see 3.2)
4.11
ILOC
Intersection location
4.12
INV
Introduction, Numbering and Versions (see CEN ISO/TS 18234-1)
4.13
IPR
Intellectual Property Right(s)
4.14
ISO
International Organization for Standardization
4 © ISO 2006 – All rights reserved

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ISO/TS 18234-4:2006(E)
4.15
MET
Message Expiry Time (see 3.6)
4.16
MGT
Message Generation Time (see 3.7)
4.17
MID
Message Identifier (see 3.8)
4.18
OSI
Open Systems Interconnection
4.19
PTI
Public Transport Information (see CEN ISO/TS 18234-5)
4.20
RDS-TMC
Radio Data System – Traffic Message Channel
4.21
RFU
Reserved for future use (not necessarily abbreviated)
4.22
RTM
Road Traffic Message application (this specification)
4.23
SEV
Severity Factor (see 3.10)
4.24
SNI
Service and Network Information application (see CEN ISO/TS 18234-3)
4.25
SSF
Syntax, Symantics and Framing Structure (see CEN ISO/TS 18234-2)
4.26
STA
Start Time (See 3.11)
4.27
STO
Stop Time (see 3.13)
4.28
TPEG
Transport Protocol Experts Group
4.29
TSI
Time Schedule Information (see 3.14)
© ISO 2006 – All rights reserved 5

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ISO/TS 18234-4:2006(E)
4.30
TTI
Traffic and Travel Information
4.31
UAV
Unassigned value
4.32
UNV
Unverified Information (see 3.15)
4.33
UTC
Coordinated Universal Time
4.34
VER
Version Number (see 3.16)
5 RTM application overview
5.1 Introduction
The TPEG-Road Traffic Message application allows for a wide range of TPEG-decoder types and
presentation possibilities to be supported. It may support simultaneously a wide range of TPEG-decoder
types, from sophisticated agent TPEG-decoders serving navigation systems, through to simple TPEG-
decoders only able to decode ‘top-level’ information. Some of the possibilities include digital map-based
TPEG-decoders, GPS TPEG-decoders without digital map, and in-vehicle, fixed or portable TPEG-decoders
without either GPS or digital map. Road traffic messages may be presented to the user in many different ways,
including by text, by synthesized speech, graphically, or in route calculation.
Each road traffic message will need to include at least some of the following elements to satisfy the user
requirements for information upon which decisions may be based:
— To whom is the information targeted,
— The geographical location to which the information relates,
— The position on the roadway, or adja
...

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