Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 2: Numbering and ADP messsage header

Migrated from Progress Sheet (TC Comment) (2000-07-10): WIs 129-136 are the result of the splitting of WI 025 (TC Res C 1/2000) CC/000607).
!!! Resolution BT 19/2002: Finalization of prENV ISO 14821-2 as CEN/TS 14821-2 by CMC under CA7 in English only and submission to the new translation procedure (NT/021014) !!!

Verkehrs- und Reiseinformationen (TTI)-TTI-Nachrichten über mobile - Teil 2: Nummerierung und ADP-Nachrichtenköpfe

Prometne in potovalne informacije (TTI) - Sporočila TTI prek celičnih omrežij – 2. del: Glava dokumenta z oštevilčenjem in sporočilom ADP

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SIST-TS CEN/TS 14821-2:2003



Traffic and Travel Information (TTI) - TTI messages via cellular networks - Part 2:

Numbering and ADP messsage header
Verkehrs- und Reiseinformationen (TTI)-TTI-Nachrichten über mobile - Teil 2:
Nummerierung und ADP-Nachrichtenköpfe
Ta slovenski standard je istoveten z: CEN/TS 14821-2:2003
35.240.60 Uporabniške rešitve IT v IT applications in transport
transportu in trgovini and trade
SIST-TS CEN/TS 14821-2:2003 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TS CEN/TS 14821-2:2003
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SIST-TS CEN/TS 14821-2:2003
CEN/TS 14821-2
May 2003
ICS 35.240.60
English version
Traffic and Travel Information (TTI) - TTI messages via cellular
networks - Part 2: Numbering and ADP messsage header

This Technical Specification (CEN/TS) was approved by CEN on 10 May 2001 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. 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, Czech Republic, Denmark, Finland, France, Germany, Greece,

Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United

Management Centre: rue de Stassart, 36 B-1050 Brussels

© 2003 CEN All rights of exploitation in any form and by any means reserved Ref. No. CEN/TS 14821-2:2003 E

worldwide for CEN national Members.
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Table of contents
1. SCOPE 5
3.1 Definitions 7
3.2 Abbreviations 9
4.1 Application Data Protocol Message Header 14
4.2 Message Type Numbering 15
4.3 Application Identifiers 17
4.4 ADP Version 19
4.5 Specification in ASN.1 20
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This document (CEN/TS 14821-2:2003) 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 ".
This was prepared by Working Group 7 of CEN TC278. In the field of Traffic and
Technical Specification

Traveller Information, the innovative rate is high, with many research and development projects under way

in many countries, and there is a need to establish prospective standards which allow manufacturers to

introduce competitive products to the market in the knowledge that they can accommodate the future issues

of the standard(s) without fundamental change to equipment.

No known national Technical Specifications (identical or conflicting) exist on this subject.

CEN/TS 14821 consists of eight parts; one part describing the framework and seven parts providing

detailed specifications of all components, protocols and services that are within the scope of CEN/TS


In order to utilise even subsets from this and to over co-existance with other,

Technical Specification

proprietary protocols as requested by the market, it is planned to introduce an additional layer for routing

purposes. This TLV concept is currently under investigation and may be proposed as an additional part to

this .
Technical Specification

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following

countries are bound to announce this Technical Specification: Austria, Belgium, Czech Republic, Denmark,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands,

Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom.
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Traffic and Traveller Information (TTI) may be disseminated through a number of services or means of

communication, covering static displays, portable terminals and in-vehicle equipment.

For all such services, the data to be disseminated, and the message structure involved in the various

interfaces, require clear definition and standards formats in order to allow competitive products to operate

with any received data.

This focuses on an application data specification whereby data is produced at a

Technical Specification

central location and is disseminated via a cellular radio network. It addresses the data specifications for

both downlink and uplink existing between a central location and randomly located vehicles. It enables

messages to be exchanged between different systems and service providers adopting a variety of

applications specifications.
Other are being produced by the CEN TC278 Working Group 4 to cover TTI
Technical Specification

dissemination via other means or services. This set of specifications is named GATS (Global Automotive

Telematics Standard). GATS provides the modular framework for implementing such traffic telematics

services on an open technology platform and is network - independent. In many details definitions are

necessary to ensure interoperability. Therefore, those detailed definitions are given in CEN/TS 14821-8.

With the development of future mobile communication systems towards UMTS / IMT2000 the bottleneck of

narrow-band data communication might fade. Due to its modular structure, the GATS framework and

applications are prepared for that due to its network-independence. The same holds for emerging

technologies for positioning which today is almost exclusively based on GPS.

Other relevant standard developments are, independent from telematics, the application-independent

Wireless Application Protocol (WAP), enabling mobile access to the Internet. It is understood that these

emerging technologies might fit into the framework of telematics applications in future WAP-versions. For

the time being, GATS already today independently from WAP enables access to telematics services.

Utilisation of GATS on a WAP protocol stack and identifying necessary adaptation of WAP specifications (if

any) is currently under investigation of the appropriate groups within WAP-Forum and GATS-Forum.

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1. Scope

This defines the specific interfaces and functionality of traffic telematics (TT)

Technical Specification

services based on the use of cellular networks. Device manufacturers are enabled to develop terminal

equipment compatible to services based on this . This will allow for interoperability of

Technical Specification

different terminal equipment and service providers which allows competition between service providers and

terminal manufacturers. Furthermore it sets the scene for international availability of these services.

This specifies
Technical Specification

• TT-specific interfaces between terminal and service centre. This especially incorporates the message

sets of the application data protocols and the service-independent communication handling (including

conditional access and transport protocols).

• Functionality, procedures and requirements of basic terminal components as well as their interaction

with the service centre. This especially comprises conditional access and security mechanisms.

• Service Specifications, which are essential to ensure consistent behaviour of terminal and service

The services incorporated within this issue comprise:
• breakdown and emergency services
• interactive traffic information services
• broadcast traffic information services
• navigation services (route assistance, route advice, homing)
• operator services
• general information services
• floating car data collection

It is envisaged that future research and development will lead to improvements on the services listed above

as well as to the creation of new services. Nevertheless this Technical Specification provides the framework

for seamless integration of new features and services into the existing architecture.

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2. Normative references
Not applicable.
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3. Definitions and abbreviations
3.1 Definitions
For the purposes of this , the following terms and definitions apply:
Technical Specification
3.1.1 Attribute (of a Traffic Information Message)

A Traffic Information Message is made up of separate parts that can be called attributes. This includes, for

example, an item of information and a length of validity.
3.1.2 Authorisation

Reciprocal proof that the identity provided by the communications partner is valid

3.1.3 Broadcast Service

Data service within a cellular wireless network that allows for mono-directional dissemination of data from a

service centre to multiple users in the area of signal reception
3.1.4 Bypass Description
Representation of a Bypass, consisting of a Bypass Hint and/or a Bypass Route.
3.1.5 Bypass Hint
Representation of a hint for a Bypass
3.1.6 Bypass Link
Prominent waypoints on a Bypass Route
3.1.7 Bypass Route
Representation of the route for a Bypass
3.1.8 Cell Broadcast
Broadcast service of the GSM network
3.1.9 Data telegram
Digital message exchanged between two systems
3.1.10 Delivery Notification

Network acknowledgement for successful/ unsuccessful delivery of a message to the mobile device

3.1.11 Functional Road Class

A classification based on the importance of the road element in the connectivity of the total road network

3.1.12 Functional Road Class 0
3.1.13 Functional Road Class 1

All non-Motorways that are part of a connection used for nation wide traffic and transport

3.1.14 Geocode

Geocodes are unique identifiers unmistakably defining important points on road networks. Geocodes can be

derived from / converted into WGS84 co-ordinates by the algorithm described in CEN/TS 14821 3.

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3.1.15 Hardware service agents

Partner companies of the traffic telematics service providers who are authorised to install onboard

equipment into vehicles and to maintain it
3.1.16 Homing
Simple form of guidance to destination, in which the direction and
straight-line distance of the destination are indicated
3.1.17 Information Element
Information unit of a message
3.1.18 Intersection
Junction of two or more roads
3.1.19 Length of a Speech Report
Length of a Speech Report, including pauses, in tenths of a second
3.1.20 Mobile Originated
Data telegram sent from the onboard equipment to the Service Centre.
3.1.21 Mobile Terminated
Data telegram sent by the Service Centre to the onboard equipment.
3.1.22 Onboard equipment

A system, generally mobile, interacting with the service centre to handle traffic telematics services

3.1.23 Road Junction
Intersection of two or more roads
3.1.24 Route description

Description of a route showing the geometry of street intersections, manoeuvre instructions, street and

place names, and geographical co-ordinates
3.1.25 Service centre

System produced by the traffic telematics operators / service providers to handle traffic telematics services

3.1.26 Short Message Service
Packet-based form of data transfer within the

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