ISO/TS 21193:2019

TECHNICAL ISO/TS
SPECIFICATION 21193
First edition
2019-10
Electronic fee collection —
Requirements for EFC application
interfaces on common media
Perception du télépéage — Exigences relatives aux interfaces
d'application de télépéage sur média commun
Reference number
©
ISO 2019
© ISO 2019
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ii © ISO 2019 – All rights reserved

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 3
5 Requirements for a common payment medium . 4
5.1 Requirements for EFC architecture . 4
5.2 EFC functional requirements . 5
6 Application structure in a common payment medium . 9
7 EFC application data in a common payment medium . 9
7.1 General . 9
7.2 EFC attribute data for a common payment medium .10
7.3 Additional EFC attribute data .11
7.3.1 Data group RECEIPT .11
7.3.2 Data group PAYMENT .12
Annex A (normative) Data type specifications .14
Annex B (normative) Implementation conformance statement (ICS) pro forma .15
Annex C (informative) Common payment medium concept .19
Annex D (informative) Application structure examples in common payment medium .21
Annex E (informative) General information for common payment medium and OBE .23
Annex F (informative) System migration .25
Annex G (informative) Reloading system for pre-payment medium in Korean ETC .28
Annex H (informative) EFC security requirements for common payment medium and EFC
scheme .36
Bibliography .39
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
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electrotechnical standardization.
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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
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.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
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iv © ISO 2019 – All rights reserved

Introduction
Transportation network improvement, including road and railway, is essential to drive economic
growth. Integrated transport service has been aimed at topics such as user convenience, transport
safety, reliability, efficiency and availability. For example, a traffic manager can find which kinds of
improvements are needed to relieve traffic bottlenecks by analysing user transport flows in a transport
system considered as a whole.
It is usually necessary to use different transport services to transfer people or goods from origin to
destination. Sometimes, using different transport services in the same trip becomes cumbersome when
transport services are operated by different operators, e.g. bad interconnections between different
transport modes due to user needs to search and compare transportation modes, need for separate
charging or payment for the transport services used. The connections between different transport
modes and the means to achieve seamless travel are improving with the use of information and
communication technologies (ICT).
ISO/TR 19639 investigated case studies on the use of a common payment medium when combining
public transport services and road services, based on the use of a common payment schema. This
common payment schema is further categorised into integrated central accounts and integrated on-
board accounts.
ISO/TR 19639 concluded by stating the need for new electronic fee collection (EFC) standards to
support on-board integrated accounts, among which is an application interface between the common
payment medium and the common service rights provider (CSRP). The background of on-board
accounts in EFC are:
— Operational methods of EFC systems might be different due to regional and local circumstances. EFC
systems can be classified into central accounts and on-board accounts, using a common payment
medium, which are widely adopted in Asian countries.
— On-board account payment media are commonly used for public transport in several countries, e.g.
Singapore, Malaysia and China.
— Central payment accounts are considered one of the common service rights methods explained in
ISO/TR 20526, whereas the EFC standards are currently predominantly based on a central account.
— A convergence on the usage of on-board account for both EFC systems and public transport should
be considered.
This document describes an EFC application as one type of transport service specific application and
the application interface requirements for a common service rights application. A common service
rights application is explained in informative Annex C of this document for understanding a common
payment scheme based on this concept as shown in Figure 1.
Figure 1 — Common payment medium concept for EFC scheme
Arrow lines (4) labelled 'money' and 'e-money' are monetary flows and out scope of this document.
Arrow line (2) labelled 'Transport service' is not an ICT interface but a physical transport service.
Other arrow lines are in the scope of ISO/TC 204 (EFC and public transport standards) and the thick
arrow line between common payment medium and OBE is within the scope of this document.
This document will extend the set of EFC standards to allow provisions for multi-modal transport
services by using a common payment medium.
This document defines among others, the role and responsibilities of a CSRP. The CSRP provides
a common payment medium for enabling use of EFC, a public transport service and retail shopping
service to service users with one account. CSRP may provide the usage record of user's multi modal
transport trip as a form of customer service.
This document contains a number of annexes. Data type specifications are given in Annex A, an
implementation conformance statement (ICS) proforma is given in Annex B. The common payment
medium concept for any transport service is presented in Annex C. General kinds of application
structure in a medium are presented in Annex D. General requirements from medium relating standards
is presented in Annex E. A typical system migration method and technical solution supporting medium
upgrading are presented in Annex F. Examples of reloading types and transactions are presented in
Annex G. The EFC security requirements for a common payment medium are presented in Annex H
based on EFC functional requirements.
The scope of this document includes an EFC application interface for a common payment medium as
shown in Figure 2, as well as the role and responsibilities of a Common Service Rights Provider (CSRP).
NOTE Figure 2 explains the relation of CSRP among related sectors including EFC. E-money is exchanged
between the Transport Service Provider (TSP) in the EFC sector and the CSRP. E-money is exchanged between
retail in the commerce sector and the CSRP.
vi © ISO 2019 – All rights reserved

Figure 2 — Scope within the EFC computational architecture
TECHNICAL SPECIFICATION ISO/TS 21193:2019(E)
Electronic fee collection — Requirements for EFC
application interfaces on common media
1 Scope
This document defines requirements to support information exchanges among related entities of a
common payment scheme. It defines:
a) electronic fee collection (EFC) functional requirements for a common payment medium;
b) an application structure in a common payment medium;
c) EFC application data in a common payment medium.
The following are outside the scope of this document:
— requirements and data definitions for any other transport services such as public transport;
— a complete risk assessment for an EFC system using a common payment medium;
— security issues arising from an EFC application among all transport services;
— the technical trust relationship between a CSRP and a service user;
— concrete implementation specifications for implementation of security for an EFC system;
— detailed specifications required for privacy-friendly EFC implementations;
— any financial transactions of the CSRP.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 14906:2018, Electronic fee collection — Application interface definition for dedicated short-range
communication
ISO 17573-1:2019, Electronic fee collection — System architecture for vehicle-related tolling — Part 1:
Referen
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