ISO/TS 14823:2008

TECHNICAL ISO/TS
SPECIFICATION 14823
First edition
2008-07-15

Traffic and travel information —
Messages via media independent
stationary dissemination systems —
Graphic data dictionary for pre-trip and
in-trip information dissemination
systems
Informations sur le trafic et le tourisme — Messages par systèmes de
dissémination stationnaire indépendants du support — Dictionnaire de
données graphiques pour les systèmes de dissémination d'informations
avant le trajet et durant le trajet




Reference number
ISO/TS 14823:2008(E)
©
ISO 2008

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ISO/TS 14823:2008(E)
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ISO/TS 14823:2008(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope .1
2 Normative references .2
3 Terms and definitions .2
4 System Architecture.3
4.1 Αlpha (α) Interface: .3
4.2 Beta (β) Interface:.3
4.3 Gamma (γ ) Interface: .4
5 Document Structure .4
5.1 Main Part.4
5.2 Annexes .5
6 Graphic Data Dictionary.5
6.1 General.5
6.2 Information Elements .7
6.3 Data Elements .8
6.4 Data Structure .8
6.5 Coding Rules.9
6.6 ASN.1 Description of Pictogram Code .12
6.7 Attributes .14
7 Items Subject to Standardisation.53
7.1 Service Category Code No. ‘11111-11999’: Traffic Sign Pictograms (Warning) .54
7.2 Service Category Code No. ‘12111-12999’: Traffic Sign Pictograms (Regulatory) ’ .58
7.3 Service Category Code No. ‘13111-13999’: Traffic Sign Pictograms (Guide Signs).64
7.4 Service Category Code No. ‘21111- 21999’: Public Facilities Pictograms (Public Facilities) .69
7.5 Service Category Code No. ‘31111- 31999’: Ambient/Road Conditions
Pictograms(Ambient Condition).71
7.6 Service Category Code No. ‘32111- 32999’: Ambient/Road Conditions Pictograms (Road
Condition).72
Annex A (normative) List of GDD Attributes .73
Annex B (informative) Example GDD Data set for U.N. and selected countries.75
Annex C (informative) Examples of GDD Attributes.142
Annex D (normative) List of Direction Coding of Lanes .158
Bibliography .173

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ISO/TS 14823:2008(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.
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 14823 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 278, Road transport and traffic telematics, in collaboration with Technical Committee ISO/TC 204,
Intelligent transport systems, in accordance with the Agreement on technical cooperation between ISO and
CEN (Vienna Agreement).

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ISO/TS 14823:2008(E)
Introduction
This Technical Specification presents a Graphic Data Dictionary (GDD) which has been developed with the
intent of creating a common basis for transmitting graphic information data that can be, irrespective of
language or regional differences, decoded and understood by the users who obtain TTI (pre-trip and in-trip
information) service through TTI system operators such as traffic management centres (TMCs), traffic
information centres (TICs) and value-added service providers (VASPs) which add value to the TTI. Adopting
unified graphic data is expected to improve the understandability of the graphic information by the user and
thereby increase the convenience of TTI systems.
The purpose of GDD is, in order to facilitate the data exchange between media, to catalogue graphic images
like traffic signs and pictograms specified and used uniquely in each country and to assign them a certain
code.
Elements of Graphic Data
These include:
⎯ full name of the pictogram,
⎯ definition of the pictogram,
⎯ code for the pictogram,
⎯ attribute(s) of the pictogram, and
⎯ pictogram itself.
Normative items in this document are the coding scheme involving the full name, definition and attributes to
define each graphic image. It is not intended to create and specify a common design of graphic images.
Application of Graphic Data
Graphic data shall be stored in advance as a database by TTI system operators (such as TMC, TIC etc.),
VASP, or in media systems, and then used as a part of TTI for data exchange among these entities. "The
GDD" is a database that registers the codes and attributes of a set of graphic data in a systematic manner.
Message Creation
Data elements to be stored in the database of a TIC shall be those created by using TTI collected in the TIC.
Similarly, graphic data shall be those coded beforehand and registered into the database. Messages to be
dealt with in this Technical Specification are to be generated basically with data elements registered in the
database of the TIC.

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TECHNICAL SPECIFICATION ISO/TS 14823:2008(E)

Traffic and travel information — Messages via media
independent stationary dissemination systems — Graphic data
dictionary for pre-trip and in-trip information dissemination
systems
IMPORTANT — The electronic file of this document contains colours which are considered to be
useful for the correct understanding of the document. Users should therefore consider printing this
document using a colour printer.
1 Scope
This Technical Specification presents a system of standardized codes for existing signs and pictograms used
to deliver traffic and traveller information (TTI). The coding system can be used to form messages to be
handled by respective media systems, graphic messages on on-board units, and media system information on
TTI dissemination systems (VMS, PC, PAT, etc.) (including graphic data). These types of information are
required by travellers for their pre-trip planning as well as their in-trip plan modification based on information
obtained through media systems.
As shown in Figure 1, a system handling graphic messages generally comprises TTI system operators, media
systems and communication networks interconnecting these systems.
This Technical Specification relates to:
⎯ TTI systems operators which include
⎯ Traffic Management Centres (TMC),
⎯ Traffic Information Centres (TIC),
⎯ Parking Information Centres (PIC),
⎯ Public Transport Centres (PTC),
⎯ Value-Added Service Providers (VASP), and
⎯ others;
⎯ media systems which include
⎯ On-board Units (OBU),
⎯ Variable Message Signs (VMS),
⎯ Personal Computers (PC),
⎯ Public Access Terminals (PAT), and
⎯ others.
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ISO/TS 14823:2008(E)
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 9735, Electronic data interchange for administration, commerce and transport (EDIFACT) — Application
level syntax rules
ISO 3166 (all parts), Codes for the representation of names of countries and their subdivisions
CEN prENV/278/8/15 RTTT — Traffic and Travel Data Dictionary — Part 1: General Definitions, Entities,
Attributes
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply
3.1
traffic and traveller information
TTI
generic term for traffic and travel-related information such as road traffic information, transfer information, or
public transit information
3.2
traffic information centre
TIC
one of the TTI system operators
NOTE Each TIC is connected to TMC, PIC, PTC and some other TICs to collect and process information generated
at each of the said centres. The TIC disseminates information periodically in accordance with procedures as agreed with
the corresponding VASP or from time to time on request from the VASP.
3.3
value added service provider
VASP
each VASP requests information from the corresponding TTI system operators in accordance with procedures
as agreed with the TTI system operators and stores the received information in its database, then
edits/processes and disseminates information requested from users in accordance with appropriate
procedures as agreed with any media systems
3.4
traffic management centre
TMC
one of the TTI system operators
NOTE Each TMC manages systems for traffic surveillance and controls by collecting and processing traffic
information.
3.5
parking information centre
PIC
one of the TTI system operators
NOTE PIC disseminates information such as the location, capacity, vacancy and other information related to the
status of service/parking facilities.
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ISO/TS 14823:2008(E)
3.6
public transport centre
PTC
one of the TTI system operators
NOTE PTC disseminates information about public transport such as regular routes, travel time, fares and transfer
points.
3.7
variable message sign
VMS
one of the TTI display systems
NOTE Each VMS provides travellers with dynamic information by words and possibly with simple graphics.
3.8
on-board unit
OBU
unit fitted in a vehicle to display TTI messages
3.9
personal computer
PC
each PC functions as the man-machine interface for travellers and requests/receives information in
accordance with procedures as agreed with the corresponding VASP
NOTE Each PC processes and presents received information according to the purpose of the request.
3.10
public access terminal
PAT
equipment installed in public places (e.g. airport terminals, shopping centres or service areas) to provide
ondemand information requested by travellers
3.11
graphic data dictionary
GDD
compilation of all relevant graphic data, such as full names, definitions, and attributes of pictograms
4 System Architecture
A TTI dissemination system to any kind of media system is generally composed of TTI system operators such
as TMCs, TICs, PICs and PTCs, VASPs which intervene between each of the TTI system operators, media
systems as the end users, and communications networks interconnecting the TTI system operators and media
systems. A schematic presentation of the system architecture is given in Figure 1 — TTI Dissemination
System Architecture.
4.1 Αlpha (α) Interface:
The α (alpha) Interface shall have two functions as a communications interface: one is to exchange data
locally among TMCs and TICs, and the other is for a TMC or TIC to collect data from PICs and PTCs.
4.2 Beta (β) Interface:
The β (beta) Interface shall function as a communications interface between each TTI source and a VASP
connected with a communications network
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ISO/TS 14823:2008(E)
4.3 Gamma (γ ) Interface:
The γ (gamma) Interface shall function as a communications interface that enables secure and direct
dissemination of information to the media system as the end user, as requested by the media system by
collecting, processing, and storing the information from TTI system operators.

Figure 1 — TTI Dissemination System Architecture
5 Document Structure
This standard is divided into a main part and several appendices. The main part explains the concepts of
graphic data information service to the users who need TTI information service, and presents an overview of
the user service.
5.1 Main Part
This section provides a structural overview of the GDD (Graphic Data Dictionary).
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ISO/TS 14823:2008(E)
Graphic Data: There exist graphic data that have been obtained by coding information on traffic signs, public
facilities, ambient/road conditions, etc. as a part of TTI messages at TMCs and TICs. The data elements of
such information consist of country code, service category code, pictogram category code, and attribute
indicator code, organized as communication data.
Section 8 provides Items Subject to Standardisation which are needed to facilitate communications with the
users which includes: full names; definitions; attributes; and pictograms which are listed as data to be
provided to users.
5.2 Annexes
The Annexes provide examples of configurations and services that fall within the scope of this standard.
The Annexes consist of the following four parts:
5.2.1 Annex A (Normative)
This annex provides pictogram attributes as data elements for traffic sign pictograms in the categories of –
warning signs, regulatory signs and guide signs.
5.2.2 Annex B (Informative)
This annex provides relationships among the full name, definition, code, and pictogram designs from U.N. and
selected countries.
5.2.3 Annex C (Informative)
This annex provides examples of data coding and the description of attributes for traffic sign pictograms.
5.2.4 Annex D (Normative)
The coding scheme that applies to complex configurations of roadway intersections is presented in this annex
as part of the coding system for traffic sign pictograms.
6 Graphic Data Dictionary
6.1 General
The flow of graphic data and the roles of the graphic data dictionary are illustrated in Figure 2 — Flow and
Content of Graphic Data in TTI Messages based on Figure 1 — TTI Dissemination System Architecture
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ISO/TS 14823:2008(E)

Figure 2 — Flow and Content of Graphic Data in TTI Messages
Graphic data are conveyed as part of TTI messages issued by TMCs or TICs. The graphic information in a
TTI message is coded and according to the Graphic Data Dictionary used by both the TTI system operator
and media system. Information elements to be prescribed by the Graphic Data Dictionary concern Traffic Sign
Information, Public Facilities Information, and Ambient/Road Condition Information as described in Section 7.2.
Data elements consist of communication data, including the country code, service category code, pictogram
category code and attribute indicator code, and user service data, including full name, definition, attributes,
and pictogram itself as described in Section 7.3.
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ISO/TS 14823:2008(E)
6.2 Information Elements
Information elements (IEs) contained in messages provided by pre-trip and in-trip information services can be
broadly divided into these types. This classification conforms to the “Final Act and Related Documents”
enacted by the “United Nations Conference on Road Traffic (UNCRT).”
Table 1 — Information Elements
Type of Service (Division) Subdivision Nature
1) Traffic Sign Information a) Danger warning Warning / Priority sign information
c) Regulatory Priority sign information
Prohibitory or restrictive sign information
Mandatory / End sign information

c) Informative Advance direction sign information
Direction sign information
Road/ Place identification sign information
Confirmatory sign information
Pedestrian crossing sign information
Other sign information providing information
useful to the drivers of vehicles
Lane affectation

2) Public Facilities a) Public facilities Information giving notice of public facilities
Information which may be useful to road users

3) Ambient/Road Condition b) Ambient conditions Information indicating ambient conditions
Information which may be useful to the drivers of
vehicles

c) Road conditions Sign information indicating road conditions
which may be useful information for drivers
of vehicles

The ‘Traffic Sign Information’ is subdivided into three categories, each of which defines information for each
traffic sign established in each member country (see Section 7.5.1 ‘Country Code’). Each subcategory may be
divided further based on its properties. The Public Facilities Information indicates the existence of certain
public facilities and their service details (e.g., toilets, restaurants, first aid facilities, etc.). The “Ambient/ Road
Condition Information” is concerned with the ambient condition of a roadway or local condition which may
affect the flow of road traffic (such as bad weather and traffic congestion). IEs are all defined with their full
names and are provided in the form of pictograms easily recognizable by the users. Pictograms to be used for
information display may vary from country to country, from political jurisdiction to political jurisdiction, or from
system operator to system operator.
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ISO/TS 14823:2008(E)
6.3 Data Elements
Used as a “Pictogram Code” when transmitting IEs (described in Section 6.2) as communication data is a
combination of the following four Data Elements (DEs): country code data, service category data pictogram
category data, and attribute indicator code. When these “Communication Data” (consisting of pictogram code
and attributes) are provided to the users, they are served with four components: the unified full name, and
definition of a pictogram, details of its attributes if any, and the pictogram itself. They are called User Service
Data. The data configuration of the IEs (described in Section 6.2) is as follows:
6.3.1 Communication Data:
Pictogram Code
Country code data DE 1 (the code number assigned to the country to which the system
operator belongs);
Service category data DE 2 (the code number assigned to the category of IE);
Pictogram category data DE 3 (the code number assigned to the category of a pictogram type
under the service category);
Attribute indicator code data DE4 (the code number indicating whether any attributes are
attached to the pictogram);
Attributes
Attributes When any attributes are needed for details, one or more of the eight
attributes are added.
6.3.2 User Service Data:
Full name
Definition
Attributes
Pictogram
6.4 Data Structure
Each of the four DEs described in Section 6.3 has its own data field. By combining these data fields, the IEs
described in Section 6.2 can be represented in various ways. Each data field is coded in units of DEs to create
a certain IE. As a rule, every data field in every DE is represented by one integer or one letter. See Section
7.5 for details of the coding rule, and Section 7.7 for the attributes.
The coded data structure is as follows:
Data Element (DE) 1: DE 2: DE 3: DE 4:
Country Code (ISO/3166 Service Category Pictogram Attribute Indicator
Code Category Code Code
Data Field X8 X7 X6 X5 X4 X3 X2 X1

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ISO/TS 14823:2008(E)
6.5 Coding Rules
This section describes the coding rules for storing DEs in a database for the provision of graphic data to the
users as accurate information. See ‘Table 2.
6.5.1 Data Element 1: Country Code (X8 X7)
The numeric value of each ‘Country Code’ shall be assigned according to the ISO 3166 (Alpha 2-code country
name notation).
Bit length = 16 bits
Value range = X8: A to Z
X7: A to Z
Field X8 X7
Value & Description A to Z A to Z

6.5.2 Data Element 2: Service Category Code (X6 X5)
Bit length = 16 bits
Value range = X6: 1-9
X5: 1-9
Field X6 X5
Division Code Class Code
Value & 1: Traffic Sign 1: Danger Warning
Description Pictogram
2: Regulatory
3: Informative
4:

2: Public 1: Public Facilities
Facilities
2:
Pictogram

3: 1: Ambient Condition
Ambient/Road
2: Road Condition
Condition
Pictogram
4: 1:

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ISO/TS 14823:2008(E)
6.5.3 Data Element 3: Pictogram Category Code (X4 X3 X2)
Bit length = 24 bits
Value range = X4: 1 to 9
X3: 1 to 9
X2: 1 to 9
Field X4 X3 X2
Pictogram Code
Value & Indicates items to be Serial number (1 to 9) Serial number (1 to 9)
Description classified in X5 field
by nature: 1 to 9

See Table X ‘Code
Ordering’ for details.
Serial number (1 to
9)
Note: For pictograms corresponding to the coded items, see ‘Annex B: Graphic Data
Dictionary. Pictograms to be displayed actually will vary from country to country
(depending on the self-governing system or system operator of the country).

6.5.4 Data Element 4: Attribute Indicator Code (X1)
Bit length = 8 bit
Value range = 1 or 2
Field X1
Value & Description Indicates whether any
attributes are attached.
1: Yes
2: No

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ISO/TS 14823:2008(E)
Table 2 — Code Ordering (without attribute data)
X8 X7 X6 X5 X4 X3 X2 X1
Data
Elements Attribute
Country Code Service category code Pictogram category code
indicator
Number of 2 alphabetic 1 numeric
2 alphabetic notation (16 bits) 3 numeric notation (24 bits)
bits notation (16 bits) notation (8 bit)
Field  Division Class Nature
1: Danger 1-9: Danger warning
Warning Priority and nature
1-3: Priority
4-6: Prohibitory or
2: Regulatory
Restrictive
7-9: Mandatory / End
1-3: Advance
direction
1: Traffic Sign
Pictogram 4: Direction
Indicates
whether any
5: Place
attributes are
identification
attached.
ISO 3166 - 1993 Serial number (1-9)

3: Informative
6: Confirmatory
1: yes
7: pedestrian
2: no
crossing
8-9: Other providing
information useful to
the drivers
2: Public Facilities 1-9: Public facilities
1: Public Facilities
Pictogram & services
1: Ambient 1-9: Ambient
3: Ambient / Road
Condition condition & nature
Condition
Pictogram 1-9 Road condition
2: Road Condition
and nature
Code No. 00000000 (all zeros) …. reserved for specific case

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ISO/TS 14823:2008(E)
6.6 ASN.1 Description of Pictogram Code
TTI-MIB DEFINITIONS ::= BEGIN

    IMPORTS
      Enterprises FROM RFC1155-MIB
      OBJECT-TYPE FROM RFC-1212;

TTI Group OBJECT IDENTIFIER ::= { enterprises 999 }

TTI Data Elements OBJECT IDENTIFIER ::= { TTI Group 1 }
TTI Attribute Des OBJECT IDENTIFIER ::= { TTI Group 2 }


--
-- Data Element 1 : Country Code (X8 X7)
--

Country Code   OBJECT-TYPE
  SYNTAX OCTET STRING (SIZE (2))
  ACCESS read-only
  STATUS mandatory
  DESCRIPTION
     "Numeric value of each 'Country Code' shall be assigned according to
      ISO 3166 (Alpha 2-code country name notation.)"
  ::= { TTI Data Elements 1 }


--
-- Data Element 2 : Service Category Code (X6 X5)
--

Service Category  OBJECT-TYPE
  SYNTAX OCTET STRING (SIZE(2))
  ACCESS read-only
  STATUS mandatory
  DESCRIPTION
     "Service category data (the code number assigned to the category of IE)
      '1x'  :  Traffic Sign Pictogram
       '11' :  Danger Warning
       '12' :  Regulatory
       '13' :  Informative
      '2x'  :  Public Facilities Pictogram
       '21' :  Public Facilities
      '3x'  :  Ambient Road Condition Pictogram
       '31' :  Ambient Condition
       '32' :  Road Condition
       "
  ::= { TTI Data Elements 2 }


--
-- Data Element 3 : Pictogram Category Code (X4 X3 X2)
--

Pictogram Category  OBJECT-TYPE
  SYNTAX OCTET STRING (SIZE(3))
  ACCESS read-only
  STATUS mandatory

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ISO/TS 14823:2008(E)
  DESCRIPTION
     "Service category data (the code number assigned to the category of IE
...