ISO 17573:2010

INTERNATIONAL ISO
STANDARD 17573
First edition
2010-12-15


Electronic fee collection — Systems
architecture for vehicle-related tolling
Perception du télépéage — Architecture de systèmes pour le péage lié
aux véhicules





Reference number
ISO 17573:2010(E)
©
ISO 2010

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ISO 17573:2010(E)
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ISO 17573:2010(E)
Contents Page
Foreword .v
Introduction.vi
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Symbols and abbreviated terms .5
4.1 Abbreviated terms .5
4.2 Symbols.5
5 The EFC community: roles and objectives.5
5.1 General .5
5.2 Toll charging environment .6
5.3 External objects.7
6 Roles in a toll charging environment .8
6.1 General .8
6.2 Role related to the provision of the toll service .9
6.3 Role related to the use of the toll service .10
6.4 Role related to the charging of the toll.11
6.5 Role related to the management of a toll charging environment.12
6.6 Decomposition of a toll charging environment.13
7 EFC system behaviour.19
7.1 General .19
7.2 Roles, responsibilities and actors .19
7.3 Interaction matrix and action diagrams .21
7.4 Resulting interaction between actors .34
8 Information schemata and basic information types .36
8.1 Static schema .36
8.2 Basic information objects.37
8.3 Dynamic schema .41
9 Interfaces and computational objects.41
9.1 General .41
9.2 Management object interfaces.42
9.3 Charging object interfaces .43
9.4 Basic Provision object interfaces.45
9.5 Maintaining the OBE object interfaces.47
9.6 Customizing the OBE object interfaces .48
9.7 Acting as a Contract Agent object interfaces.49
9.8 Providing EFC Context Data object interfaces.51
9.9 Providing toll declaration object interfaces.51
9.10 Collecting Usage Data object interfaces.52
9.11 Use object interfaces .54
10 Points of observation and viewpoint correspondences .55
10.1 Points of observation.55
10.2 Correspondence between enterprise and information viewpoints.55
10.3 Correspondence between enterprise and computational viewpoints.55
Annex A (informative) Short Open Distributed Processing (ODP) description.56
Annex B (informative) Comparison with ISO/TS 17573:2003 .59
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ISO 17573:2010(E)
Annex C (informative) Relations between this International Standard and IFMSA.62
Annex D (informative) Relation with the European Electronic Toll Service.66
Annex E (informative) Example of the Japanese electronic toll system .69
Bibliography .72

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ISO 17573:2010(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 17573 was prepared by Technical Committee ISO/TC 204, Intelligent transport systems, in collaboration
with Technical Committee CEN/TC 278, Road transport and traffic telematics.
This second edition cancels and replaces the first edition (ISO/TS 17573:2003), which has been technically
revised.
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ISO 17573:2010(E)
Introduction
The widespread use of tolling requires provisions for users of vehicles that are roaming through many different
toll domains. Users should be offered a single contract for driving a vehicle through various toll domains and
those vehicles require on-board equipment (OBE) that is interoperable with the toll system in the various toll
domains. In Europe, for example, this need has been officially recognized and legislation on interoperability
has already been adopted. See EFC Directive 2004/52/EC. There is a commercial and economic justification
both in respect to the OBE and the toll systems for standards enabling interoperability.
In addition to other standards, there is also a further need for a system architecture that
⎯ provides an architectural “umbrella” for other EFC standards in terms of a common definition of terms and
concepts, basic system functionalities, and structure;
⎯ provides a common terminology which enables its users
⎯ to improve the quality of specifications to be used in an international market,
⎯ to reduce the risk for different interpretations of specifications (purchaser) and descriptions (supplier),
⎯ to simplify the communication between experts from different continents, and
⎯ to enhance the potential use of other EFC standards;
⎯ defines a common framework, that enables both
⎯ identification of potential activities subject to standardization, and
⎯ maintenance of a common and consistent view of the whole area;
⎯ defines the boundaries between the EFC and the external world;
⎯ identifies all architectural objects that are within the EFC boundaries;
⎯ provides a basic understanding of EFC, EFC interoperability, and the EFC services being offered.
The previous edition of this International Standard was based on a conceptual model defined in ISO/TS 14904.
Since then, ideas on conceptual models have evolved in several regional projects and implementations, e.g.
in Japan and Europe. Those new models have been detailed to a further extent compared to
ISO/TS 17573:2003 and are closer to real-life implementations. This International Standard is based on these
new conceptual models and uses the associated terms and definitions. A comparison between
ISO/TS 17573:2003 and this edition is shown in Annex B.
Although there are many differences, collecting tolls for vehicles can be to some extent compared with
collecting fares for public transport. Architectural harmonization of the collection of fees and fares can be
desirable from a policy and from a user point of view. In the past ISO 24014-1 (prepared by CEN/TC 278
WG 3, Public Transport) used ISO/TS 17573:2003 as a starting point for their work. This International
Standard has benefited from that and has also taken ISO 24014-1 into account.
In this International Standard the open distributed processing (ODP) standard is used for the description of the
architecture.
The ODP standard gives a vocabulary and modelling tools to see the architecture of a system from different
perspectives (viewpoints), in order to cover, for example, hardware components as well as network protocols
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ISO 17573:2010(E)
or interfaces or roles and general policies of the system itself. This is accomplished using different sets of
concepts and terminologies, each one of those expressed as a viewpoint language. A complete description of
a real system can only be achieved when all viewpoint models are designed. This allows for a clear separation
of concerns and an easier way to define a system. A brief description of the ODP concepts can be found in
Annex A.
This International Standard gives a description of the architecture of the toll systems environment from the
enterprise viewpoint. In addition, this International Standard defines the foundations of the information
viewpoint by defining information interactions and general information objects, and gives the basis for the
computational view, by identifying needed computational objects and their interfaces.

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INTERNATIONAL STANDARD ISO 17573:2010(E)

Electronic fee collection — Systems architecture for vehicle-
related tolling
1 Scope
This International Standard defines the architecture of a toll system environment in which a customer with one
contract can use a vehicle in a variety of toll domains and with a different Toll Charger for each domain.
Toll systems covered by this International Standard can be used for various purposes including road (network)
tolling, area tolling, collecting toll for bridges, tunnels, ferries, for access, and for parking. From a technical
point of view the considered toll systems use electronic equipment on board a vehicle.
From a process point of view the architectural description focuses on toll determination, toll charging, and the
associated enforcement measures. The actual collection of the toll, i.e. collecting payments, is not included.
The architecture in this International Standard is defined with no more details than those required for an
overall overview, a common language, an identification of the need for other standards, and the drafting of
these standards.
This International Standard provides
⎯ the enterprise view on the architecture, which is concerned with the purpose, scope and policies
governing the activities of the specified system within the organization of which it is a part,
⎯ terms and definitions for common use in a toll environment,
⎯ a decomposition of the toll systems environment into its main objects,
⎯ the responsibilities of the main actors,
⎯ an identification of the main interfaces between the main objects,
⎯ an identification of the main flows of information between the main objects, and
⎯ action diagrams reflecting the co-operation between the main actors.
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 reference model — Basic
Reference Model: The Basic Model (ITU-T Recommendation X.200, 1994)
ISO/IEC 10746-2, Information technology — Open distributed processing — Reference model: Foundations
(ITU-T Recommendation X.902)
ISO/IEC 10746-3, Information technology — Open distributed processing — Reference model: Architecture
(ITU-T Recommendation X.903)
ISO/IEC 15414, Information technology — Open distributed processing — Reference model: Enterprise
language (ITU-T Recommendation X.911)
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ISO 17573:2010(E)
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/IEC 7498-1, ISO/IEC 10746-2,
ISO/IEC 10746-3, ISO/IEC 15414, and the following apply.
3.1
context data
information defined by the responsible Toll Charger necessary to establish the toll due for circulating a vehicle
on a particular Toll Domain and to conclude the toll transaction
3.2
customer (of a Toll Service Provider)
person or legal entity that uses the service of a Toll Service Provider
NOTE Depending on the local situation, the customer can be the owner, lesser, lessee, keeper, (fleet) operator,
holder of the vehicle's registration certificate, driver of the vehicle, or any other third person.
3.3
driver
person who drives a vehicle
NOTE The driver is assumed to operate (use/serve) the OBE (e.g. the setting of the number of axles).
3.4
electronic fee collection
EFC
toll charging supported by electronic equipment on board a vehicle
NOTE The actual payment (collection of the fee) can take place outside the toll system.
3.5
enforcement
process of compelling observance of a law, regulation, etc.
NOTE In this context, “enforcement” is the process of compelling observance of a toll regime.
3.6
equipment interoperability
ability of two or more pieces of equipment to operate in conjunction
3.7
interoperability
ability of systems to provide services to, and accept services from, other systems and to use the services so
exchanged to enable them to operate effectively together
EXAMPLE Tolling interoperability aims at enabling a vehicle to drive through various toll domains while having only
one OBE operating under one contract with a Toll Service Provider.
3.8
localization augmentation
information sent by the roadside equipment to the on-board equipment to augment the positioning for
autonomous systems
3.9
on-board equipment
OBE
equipment fitted within or on the outside of a vehicle and used for toll purposes
NOTE The OBE does not need to include payment means.
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ISO 17573:2010(E)
3.10
one(s) liable for toll
person(s) or legal entity(ies) liable to pay toll under the operation of a toll regime
NOTE A toll regime can designate more than one person to be (jointly and severally) liable for paying the toll.
3.11
point of observation
interface, or in general identifiable access to a system, where conformance can be stated and verified
3.12
roadside equipment
equipment located along a road transport network, for the purpose of communication and data exchanges with
on-board equipments
3.13
role
set of responsibilities
3.14
tariff scheme
set of rules to determine the toll due for a vehicle in a toll domain for a tolled object at a certain day and time
EXAMPLE A table that shows the toll for various classes of vehicle.
3.15
toll
charge, tax, fee, or duty in connection with using a vehicle within a toll domain
NOTE The definition is a generalization of the classic definition of a toll as “a charge, a tax, or a duty for permission
to pass a barrier or to proceed along a road, over a bridge, etc.” The definition above also includes fees regarded as an
(administrative) obligation, e.g. a tax or a duty.
3.16
Toll Charger
legal entity charging toll for vehicles in a toll domain
NOTE In other documents the terms operator or toll operator can be used.
3.17
toll declaration
statement to a Toll Charger that confirms the presence of a vehicle in a toll domain in a format agreed
between the Toll Service Provider and the Toll Charger
NOTE A valid toll declaration has to fulfil formal requirements, including security requirements, agreed between the
Toll Service Provider and the Toll Charger.
3.18
toll domain
area or part of a road network where a toll regime is applied
3.19
toll point
location within a toll domain where the OBE has to issue a toll declaration
EXAMPLE A part of a toll plaza for electronic fee collection.
3.20
toll regime
set of rules, including enforcement rules, governing the collection of toll in a toll domain
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ISO 17573:2010(E)
3.21
toll schema
generic term used for toll regime and/or toll domain and/or toll system depending on the context
3.22
toll service
service enabling users having only one contract and one set of OBE to use a vehicle in one or more toll
domains
3.23
Toll Service Provider
legal entity providing customer toll services on one or more toll domains for one or more classes of vehicle
NOTE 1 In other documents the terms “issuer” or “contract issuer” can be used.
NOTE 2 The toll service provider can provide the OBE or can provide only a magnetic card or a smart card to be used
with the OBE provided by a third party (just as a mobile telephone and a SIM card can be obtained from different parties).
NOTE 3 The toll service provider is responsible for the operation (functioning) of the OBE with respect to tolling.
3.24
toll system
off-board equipment and possible other provisions used by a toll charger for the collection of toll for vehicles
NOTE 1 The OBE is excluded from the definition.
NOTE 2 The actual payment (collection of the fee) can take place outside the toll system.
3.25
toll systems environment management
controlling enterprise object for the toll systems environment
NOTE The toll systems environment management can encompass several distinct entities, e.g. a political/legislative
one, a regulatory one, private associations, standardization authorities, and so on.
3.26
tolled object
distinguished part of a toll domain for which one or more tariff schemes apply
EXAMPLE A tolled object can be e.g. an area, all public roads within an area, a bridge, a zone, or a stretch of road
(network).
3.27
transport service
service used by a toll-liable vehicle in a given toll regime under the responsibility of a toll charger
3.28
trust object
information object that is exchanged between entities to ensure mutual trust
EXAMPLE A trust object can be e.g. an electronic signature or an electronic certificate.
3.29
user
customer of a toll service provider, one liable for toll, the owner of the vehicle, a fleet operator, a driver, etc.
NOTE This is a generic term which is context dependent.
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ISO 17573:2010(E)
4 Symbols and abbreviated terms
4.1 Abbreviated terms
For the purposes of this document, the following abbreviations apply throughout the document unless
otherwise specified.
CE Central Equipment
CRM Customer Relationship Management
DSRC Dedicated Short-Range Communication
EETS European Electronic Toll System
EFC Electronic Fee Collection
GNSS Global Navigation Satellite Systems
ID Identity
IFMSA Interoperable Fare Management System Architecture
OBU On-board Unit
ODP Open Distributed Processing
RSE Roadside Equipment
SLA Service Level Agreements
TC Toll Charger
TMS Traffic Management System
TTP Trusted Third Party
UML Unified Modelling Language
4.2 Symbols
In action diagrams, the following graphical conventions apply.
Rounded corner boxes indicate responsibilities and related activities within roles


Horizontal arrows indicate information exchanges between roles as activities

performed within responsibilities
Vertical arrows represent execution steps within activities


Solid circles represent the start of activities


Partially coloured circles represent the end of activities


Solid horizontal bars represent decision gates


5 The EFC community: roles and objectives
5.1 General
This clause specifies the EFC community in terms of its relationships and interactions with the external objects
with which the EFC community interacts.
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ISO 17573:2010(E)
The EFC community is
a) the collection of all entities that have been set up for carrying through the different roles,
b) the EFC-specific equipment needed to fulfill the roles, and
c) the vehicle-related transport services subject to tolling.
External entities are objects that are involved in the toll charging but that are not set up for the only purpose of
toll charging, e.g. satellite positioning systems and standardization bodies.
The EFC community is represented as a toll charging environment and the objects that the toll charging
environment interacts with, which together act as a configuration of objects formed to meet an objective which,
in this case, is the electronic collection of tolls for vehicle-related transport services. The toll charging
environment itself is represented as an enterprise object in the community and the objectives and scope of the
toll charging environment are defined in terms of the roles it fulfils within the community of which it is part and
the policy statements about these roles. Also, the roles of the enterprise objects external to a toll charging
environment are defined here in terms of their implication in the tolling.
Figure 1 shows the external enterprise objects that define the environment of this International Standard.
Objects shown are the major objects, although there may be others, explicitly or implicitly involved in the toll
collection. There might also be interfaces between a toll charging environment and other types of ITS systems,
e.g. traffic information systems.
The lines between the objects indicate the major interactions between the enterprise objects, where interfaces
are located. Interfaces between the toll charging environment and the other objects in the EFC community will
be external interfaces to the toll charging environment while interfaces within the toll charging environment will
be internal interfaces.
Positioning systems
Authorities Financial systems
Toll charging
Standardization
Telecom systems
bodies
environment
EFC equipment Vehicle sensors and
suppliers data stores
Certification bodies
Environmental sensors
and other ITS systems

Figure 1 — Enterprise objects in the EFC community

5.2 Toll charging environment
The role of a toll charging environment is to electronically collect a toll in a secure and safe way enabling
issuing of a toll declaration without stopping at a charging point, e.g. a toll station.
The interactions between a toll charging environment and the other objects in the EFC community are
described below.
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ISO 17573:2010(E)
5.3 External objects
5.3.1 Financial systems, e.g. banks, credit card companies and clearing houses
The role of a financial system is to provide the financial services requested by a toll charging environment.
The services will mainly be the transfer of money between entities in the toll charging environment, including
users. It is important to note that the toll charging environment roles handle charging data while the financial
system handles payment information (“money”). The interactions between the toll charging environment and
the financial system are based on explicit and implicit contracts between the objects in the toll charging
environment and the objects in the financial system.
This International Standard makes a strict distinction between the payment (financial) domain supporting a toll
charging environment and the charging domain within the toll charging environment itself. Only the charging
domain is covered by this International Standard.
5.3.2 Telecom systems
The role of the telecom systems is to provide the telecom services requested by a toll charging environment.
Examples of such services could be cable network for transfer of data between the operators of the toll
charging environment and air-interface network for transfer of data between the toll charging equipment and
the OBE. The int
...