ISO/TS 14812:2022

Intelligent transport systems — Vocabulary

This document defines terms relating to intelligent transport systems (ITS).

Systèmes de transport intelligents — Vocabulaire

General Information

• Status: Published
• Publication Date: 28-Apr-2022
• ICS: 01.040.03 - Services. Company organization, management and quality. Administration. Transport. Sociology. (Vocabularies)
• ICS: 01.040.35 - Information technology (Vocabularies)
• 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 1 - Architecture
• Current Stage: 9092 - International Standard to be revised
• Completion Date: 06-May-2022

Standards Content (Sample)

TECHNICAL ISO/TS
SPECIFICATION 14812
First edition
2022-04
Intelligent transport systems —
Vocabulary
Systèmes de transport intelligents — Vocabulaire
Reference number
ISO/TS 14812:2022(E)
© ISO 2022
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ISO/TS 14812:2022(E)
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© ISO 2022

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ISO/TS 14812:2022(E)
Contents Page

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

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

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

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

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

3.1 Core terms .................................................................................................................................................................................................. 1

3.1.1 Entity terms ............................................................................................................................................................................ 1

3.1.2 General system terms .................................................................................................................................................... 2

3.1.3 General architecture terms ...................................................................................................................................... 3

3.1.4 Architecture view terms ............................................................................................................................................. 4

3.1.5 Architecture — Communication view terms ............................................................................................ 5

3.1.6 Architecture — Enterprise view terms ......................................................................................................... 6

3.1.7 Architecture — Functional view terms ......................................................................................................... 7

3.1.8 Architecture — Physical view terms ............................................................................................................... 8

3.1.9 Architecture type terms ........................................................................................................................................... ... 9

3.1.10 Data concept management terms ..................................................................................................................... 10

3.1.11 Data concept type terms .......................................................................................................................................... 10

3.1.12 System engineering terms ...................................................................................................................................... 11

3.1.13 Time terms ............................................................................................................................................................................ 12

3.2 Technology terms .............................................................................................................................................................................. 12

3.2.1 Top-level physical object terms ..........................................................................................................................12

3.2.2 Centre physical object terms ................................................................................................................................ 13

3.2.3 Field physical object terms ..................................................................................................................................... 13

3.2.4 Personal physical object terms ........................................................................................................................... 14

3.2.5 Support physical object terms ............................................................................................................................. 15

3.2.6 Vehicle physical object terms ............................................................................................................................... 15

3.2.7 ITS station terms ............................................................................................................................................................. 16

3.2.8 ITS application terms .................................................................................................................................................. 17

3.2.9 ITS-S application process terms ........................................................................................................................ 17

3.3 Infrastructure terms ........................................................................................................................................... ........................... 18

3.3.1 Road reservation component terms .............................................................................................................. 18

3.3.2 Physical traffic separator terms ........................................................................................................................ 22

3.3.3 Alternate mode infrastructure component terms ............................................................................23

3.3.4 Infrastructure operating mode terms ......................................................................................................... 23

3.3.5 Road network terms..................................................................................................................................................... 24

3.3.6 Junction terms ...................................................................................................................................................................25

3.4 Location terms ..................................................................................................................................................................................... 26

3.4.1 Location type terms ..................................................................................................................................................... 26

3.4.2 Location referencing terms ................................................................................................................................... 27

3.5 Service terms ........................................................................................................................................................................................28

3.5.1 Generic service terms .................................................................................................................................................28

3.5.2 Transport service terms ...........................................................................................................................................28

3.5.3 ITS service terms ............................................................................................................................................................29

3.5.4 ITS-S service terms .......................................................................................................................................................30

3.5.5 ITS-S communication service terms ..............................................................................................................30

3.5.6 Transport-related sharing terms ......................................................................................................................30

3.5.7 Contractual model terms ......................................................................................................................................... 31

3.5.8 Financial model terms ................................................................................................................................................ 32

3.5.9 Operational model terms ......................................................................................................................................... 33

3.5.10 Network model terms .................................................................................................................................................34

3.5.11 Shared transport service terms ........................................................................................................................34

3.5.12 Shared vehicle terms ................................................................................................................................................... 35

3.5.13 Transport service application terms ............................................................................................................. 35

iii
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ISO/TS 14812:2022(E)

3.6 User terms ...............................................................................................................................................................................................36

3.6.1 Traveller terms ........................................................................................................................................... .......................36

3.6.2 Vehicle occupant terms .............................................................................................................................................. 37

3.7 Vehicle terms ......................................................................................................................................................................................... 37

3.7.1 Vehicle component terms......................................................................................................................................... 37

3.7.2 Vehicle attribute terms ..............................................................................................................................................38

3.7.3 Vehicle automation terms ........................................................................................................................................ 39

3.7.4 Vehicle connectivity terms ..................................................................................................................................... 42

3.7.5 Vehicle speed terms ...................................................................................................................................................... 42

3.7.6 Vehicle types — environment terms .............................................................................................................44

Annex A (informative) Concept model diagrams ................................................................................................................................45

Bibliography .............................................................................................................................................................................................................................81

Index .................................................................................................................................................................................................................................................83

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ISO/TS 14812:2022(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 of 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

www.iso.org/iso/foreword.html.

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

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www.iso.org/members.html.
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ISO/TS 14812:2022(E)
Introduction

The definitions found in this document have been formulated in accordance with major ISO

International Standards such as ISO 704 and are based on a consistent concept model. It is recognized

that the contents of this document are not exhaustive and that terminology evolves over time.

In most cases, the definitions provided within this document are suitable for general application

throughout intelligent transport systems (ITS). In those circumstances where a term is intended for a

specific domain of discourse or where the term can be used in multiple domains, the intended context is

indicated at the beginning of the definition as bracketed text (e.g. "").

In addition to a Bibliography, this document provides an index that provides an alphabetical listing of

all preferred, admitted, and deprecated terms contained in this document.

Other standardization groups and organizations are encouraged to adopt the terminology in this

document to promote better understanding of terms among ITS professionals worldwide. The terms

and definitions contained within this document can be searched online at ISO’s Online Browsing

Platform available at https://www.iso.org/obp.
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TECHNICAL SPECIFICATION ISO/TS 14812:2022(E)
Intelligent transport systems — Vocabulary
1 Scope
This document defines terms relating to intelligent transport systems (ITS).
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Core terms
3.1.1 Entity terms

NOTE Figure A.1 depicts the concept model for the terms defined in this subclause.

3.1.1.1
entity

concrete or abstract thing that exists, did exist, or can possibly exist, including associations among

these things
EXAMPLE Person (3.1.1.6), object, event, idea, process, etc.
3.1.1.2
immaterial entity
entity (3.1.1.1) that does not occupy three-dimensional space
EXAMPLE Idea, process, organization, etc.
3.1.1.3
material entity
entity (3.1.1.1) that occupies three-dimensional space

Note 1 to entry: All material entities have certain characteristics that can be described and therefore this concept

is important for ontology purposes.
3.1.1.4
non-biological entity
material entity (3.1.1.3) that is not and has never been a living organism
3.1.1.5
biological entity
material entity (3.1.1.3) that was or is a living organism
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ISO/TS 14812:2022(E)
3.1.1.6
person
biological entity (3.1.1.5) that is a human being
3.1.2 General system terms

NOTE Figure A.2 depicts the concept model for the terms defined in this subclause.

3.1.2.1
system

combination of interacting elements (3.1.3.10) organized to achieve one or more stated purposes

[SOURCE: ISO/IEC/IEEE 15288:2015, 4.1.46, modified — Notes to entry removed.]
3.1.2.2
transport system

system (3.1.2.1) of infrastructure elements (3.1.3.10) and optionally vehicles (3.7.1.1) that are jointly

designed to move material entities (3.1.1.3) from an origin to a destination

Note 1 to entry: Transport systems can also include any supporting system, such as information and control

systems.
3.1.2.3
surface transport system
transport system

transport system (3.1.2.2) designed to move material entities (3.1.1.3) across the surface or near-surface

of the Earth

Note 1 to entry: A surface transport system can include tunnels, bridges and similar elements (3.1.3.10).

Note 2 to entry: There is not complete agreement on the precise limitations of a "surface transport system" within

the ITS community. Currently, the term is almost exclusively applied to ground-based travel of goods and people

over significant distances. The term is viewed as including ferry systems, which often form an integral part of

a local surface transport system; it is less clear if it includes long-distance sea-fairing ships. The term "surface

transport systems" is also generally limited to transport systems that cover a considerable distance (e.g. factory

conveyance technologies are not often referred to as "surface transport systems"). It has been suggested that air

travel, which is arguably a transport system designed to move physical entities between points on the surface

of the earth, ought to be included in the scope of the term, but this perspective is not universally accepted. It is

expected that the exact limitations of the term will be further refined as ITS matures.

Note 3 to entry: Due to the defined scope of ITS, the term "transport system" is intended to be interpreted as

being synonymous with the term "surface transport system" unless explicitly specified otherwise.

3.1.2.4
intelligent transport system
ITS
intelligent transportation system

system (3.1.2.1) comprised of information, communication, sensor and control technologies and that is

designed to benefit a surface transport system (3.1.2.3)

Note 1 to entry: "Intelligent transportation system" is the American English equivalent.

Note 2 to entry: Benefits potentially include, but are not limited to, increased safety, sustainability, efficiency and

comfort.

Note 3 to entry: The full term (i.e. "intelligent transport system") is often used when the noun is used as a subject,

whereas the abbreviation (i.e. "ITS") is often used to modify another noun (e.g. "Intelligent transport systems

provide ITS services.").
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ISO/TS 14812:2022(E)
3.1.2.5
cooperative ITS
C-ITS

subset of ITS (3.1.2.4) where information is shared among ITS stations (3.2.7.3) in a manner that enables

its use by multiple ITS services (3.5.3.1)
3.1.3 General architecture terms

NOTE Figure A.3 depicts the concept model for the terms defined in this subclause.

3.1.3.1
architecture
system architecture

fundamental concepts or properties of a system (3.1.2.1) in its environment (3.1.3.11) embodied

in its elements (3.1.3.10), relationships (3.1.6.8) and in the principles of its design and evolution

[SOURCE: ISO/IEC/IEEE 42010:2011, 3.2]
3.1.3.2
architecture description
work product used to express an architecture (3.1.3.1)
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.3]
3.1.3.3
architecture framework

conventions, principles and practices for the description of architectures (3.1.3.1) established within a

specific domain of application and/or community of stakeholders (3.1.3.4)

EXAMPLE 1 Generalised Enterprise Reference Architecture and Methodologies (GERAM) [ISO 15704] is an

architecture framework.

EXAMPLE 2 Reference Model of Open Distributed Processing (RM-ODP) [ISO/IEC 10746] is an architecture

framework.
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.4]
3.1.3.4
stakeholder
system stakeholder

individual, team, organization, or classes (3.1.12.2) thereof, having an interest in a system

(3.1.2.1)
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.10]
3.1.3.5
concern
system concern

interest in a system (3.1.2.1) relevant to one or more of its stakeholders (3.1.3.4)

Note 1 to entry: A concern pertains to any influence on a system in its environment (3.1.3.11), including

developmental, technological, business, operational, organizational, political, economic, legal, regulatory,

ecological and social influences.
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.7]
3.1.3.6
architecture viewpoint

work product establishing the conventions for the construction, interpretation and use of architecture

views (3.1.3.7) to frame specific system concerns (3.1.3.5)
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.6]
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3.1.3.7
architecture view

work product expressing the architecture (3.1.3.1) of a system (3.1.2.1) from the perspective of specific

system concerns (3.1.3.5)
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.5]
3.1.3.8
model kind
conventions for a type of modelling

Note 1 to entry: Examples of model kinds include data flow (3.1.7.1) diagrams, class (3.1.11.2) diagrams, Petri

nets, balance sheets, organization charts and state transition models.
[SOURCE: ISO/IEC/IEEE 42010:2011, 3.9]
3.1.3.9
architecture model

work product representing one or more architecture views (3.1.3.7) and expressed in a format governed

by a model kind (3.1.3.8)
3.1.3.10
element
architecture element

component member of an architecture model (3.1.3.9) included in an architecture view

(3.1.3.7)
3.1.3.11
environment
system environment

context determining the setting and circumstances of all influences upon a system (3.1.2.1)

Note 1 to entry: The environment of a system includes developmental, technological, business, operational,

organizational, political, economic, legal, regulatory, ecological and social influences.

[SOURCE: ISO/IEC/IEEE 42010:2011, 3.8]
3.1.4 Architecture view terms

NOTE Figure A.4 depicts the concept model for the terms defined in this subclause.

3.1.4.1
communications view
architecture view (3.1.3.7) from the communications viewpoint (3.1.4.2)

Note 1 to entry: Within ITS, the preferred model for describing the communications view is based on the ITS-S

reference architecture (3.1.9.4).
3.1.4.2
communications viewpoint

architecture viewpoint (3.1.3.6) used to frame concerns (3.1.3.5) related to all layers of the Open Systems

Interconnection (OSI) stack and related management and security issues
3.1.4.3
enterprise view
architecture view (3.1.3.7) from the enterprise viewpoint (3.1.4.4)
3.1.4.4
enterprise viewpoint

architecture viewpoint (3.1.3.6) used to frame the policies, funding incentives, working arrangements

and jurisdictional structure that support the technical layers of the architecture (3.1.3.1)

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3.1.4.5
functional view
architecture view (3.1.3.7) from the functional viewpoint (3.1.4.6)
3.1.4.6
functional viewpoint

architecture viewpoint (3.1.3.6) used to frame concerns (3.1.3.5) related to the definition of processes

(3.1.7.2) that perform surface transport functions and data flows (3.1.7.1) shared between these

processes
3.1.4.7
physical view
architecture view (3.1.3.7) from the physical viewpoint (3.1.4.8)

Note 1 to entry: The term "deployment view" is sometimes used within the broader ICT community, but the term

"physical view" is preferred to prevent confusion between the physical view of a reference architecture and any

part of a deployment architecture (3.1.9.3).
3.1.4.8
physical viewpoint

architecture viewpoint (3.1.3.6) used to frame concerns (3.1.3.5) related to the assignment of

functionality to physical objects (3.1.8.1) and the interfaces among these physical objects

3.1.5 Architecture — Communication view terms

NOTE Figure A.5 depicts the concept model for the terms defined in this subclause.

3.1.5.1
application entity
ITS-S application entity
DEPRECATED: information layer

part of the ITS station reference architecture (3.1.9.4) that is responsible for providing ITS-

related functionality

Note 1 to entry: Within the US, the National Transportation Communications for ITS Protocol (NTCIP) standards

identify an "information layer" on top of the traditional OSI stack. However, the purpose of this layer includes

both information configuration and functionality. The ITS-S reference architecture separates these two roles

between the management entity (3.1.5.6) and the application entity.
3.1.5.2
access layer
protocol layer that contains the OSI physical and data link layer protocols
3.1.5.3
ITS-S access layer
link layer
subnet layer

protocol layer in the ITS station reference architecture (3.1.9.4) containing the OSI physical and

data link layer protocols for ITS communications

Note 1 to entry: Within the Internet Engineering Task Force (IETF), the term "link layer" is used to describe the

same functionality as the ITS-S access layer.

Note 2 to entry: Within the US, the NTCIP standards use the term "subnet layer" to describe the same functionality

as the ITS-S access layer.
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ISO/TS 14812:2022(E)
3.1.5.4
transnet layer
ITS-S networking and transport layer
networking and transport layer

protocol layer in the ITS station reference architecture (3.1.9.4) containing the OSI network and

transport layer protocols

Note 1 to entry: The full name of this layer is the networking and transport layer, but the term transnet layer

provides a more concise name.
3.1.5.5
facilities layer
ITS-S facilities layer
DEPRECATED: application layer

protocol layer in the ITS station reference architecture (3.1.9.4) containing the OSI session,

presentation and application layer protocols

Note 1 to entry: Within the US, the NTCIP standards call the facilities layer the "application layer". However,

as this term is easily confused with both the OSI application layer and the application entity (3.1.5.1), the term

should be avoided and qualified when used (e.g. OSI application layer).
3.1.5.6
management entity
ITS-S management entity

part of the ITS station reference architecture (3.1.9.4) that is responsible for management of

communications and configuration information for the local physical object (3.1.8.1) and possibly

remote physical objects
3.1.5.7
security entity
ITS-S security entity

part of the ITS station reference architecture (3.1.9.4) that is responsible for providing privacy,

communication security and system (3.1.2.1) security
3.1.6 Architecture — Enterprise view terms

NOTE Figure A.6 depicts the concept model for the terms defined in this subclause.

3.1.6.1
enterprise object

element (3.1.3.10) within an enterprise view (3.1.4.3) that represents an organization or individual

3.1.6.2
resource
enterprise view resource

element (3.1.3.10) that represents an entity (3.1.1.1) that is managed, operated,

referenced and/or used to develop and provide ITS (3.1.2.4)
3.1.6.3
document
uniquely identified unit of information for human use
EXAMPLE A report, specification, manual or book, in printed or electronic form.
Note 1 to entry: A document can be a single inf
...