ISO/TS 16785:2014
(Main)Electronic Fee Collection (EFC) — Interface definition between DSRC-OBE and external in-vehicle devices
Electronic Fee Collection (EFC) — Interface definition between DSRC-OBE and external in-vehicle devices
ISO/TS 16785:2014 defines an application interface between DSRC-based OBE and external in-vehicle devices to make DSRC-OBE applicable for diversified tolling environment.
Perception du télépéage — Définition de l'interface entre l'équipement à bord à communications dédiées à courte portée (DSRC-OBE) et les dispostifs externes embarqués
General Information
Standards Content (Sample)
TECHNICAL ISO/TS
SPECIFICATION 16785
First edition
2014-11-01
Electronic Fee Collection (EFC) —
Interface definition between DSRC-
OBE and external in-vehicle devices
Perception du télépéage — Définition de l’interface entre
l’équipement à bord à communications dédiées à courte portée
(DSRC-OBE) et les dispostifs externes embarqués
Reference number
©
ISO 2014
© ISO 2014
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ii © ISO 2014 – All rights reserved
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 3
4 Symbols and abbreviated terms . 4
5 Tolling models with external in-vehicle devices . 5
5.1 General . 5
5.2 Applicable tolling services . 6
5.3 Basic DSRC tolling. 6
5.4 Mobile-assisted DSRC tolling . 7
5.5 Universal tolling . 8
6 Message sets .10
6.1 General .10
6.2 Payment means status .12
6.3 Payment fee .12
6.4 Account update .13
6.5 Compliance checking data (CCCAttributes) .13
6.6 Localization data (LacData) .13
7 Security aspects .13
7.1 General .13
7.2 OBE interface profile .14
Annex A (normative) Data type specification .15
Annex B (normative) Protocol Implementation Conformance Statement proforma .17
Annex C (informative) Mobile-assisted DSRC tolling in Korea .19
Annex D (informative) Other possible tolling models .22
Annex E (informative) Applicable ITS services
.......................................................................................................................................25
Bibliography .30
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
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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
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on the ISO list of patent declarations received (see www.iso.org/patents).
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For an explanation on the meaning of ISO specific terms and expressions related to conformity
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to Trade (TBT) see the following URL: Foreword - Supplementary information
The committee responsible for this document is ISO/TC 204, Intelligent transport systems.
iv © ISO 2014 – All rights reserved
Introduction
Background and motivation
With regards to reassessing the present fuel tax schemes to cope with prevailing plug-in hybrid vehicle
and electric vehicle or introducing congestion charging system to urban roads or inter-urban roads etc.,
the needs for expanding toll roads are becoming worthy of notice in the world.
In countries where Dedicated Short-Range Communication (DSRC)-based Electronic Fee Collection (EFC)
systems were introduced for toll roads and have been operated widely, making their EFC equipment
applicable to present non-toll roads, such as urban roads or inter-urban roads, becomes a significant
issue to be considered and solved.
There are three cases of introducing EFC to cope with those situations:
— Case-1: DSRC-based EFC should be introduced to new toll roads, as well as present toll roads.
— Case-2: Autonomous EFC should be introduced to new toll roads and present toll roads as replacing.
— Case-3: DSRC-based EFC should be operated for present toll roads as they are, and autonomous EFC
should be introduced to new toll roads.
In case of both Case-1 and Case-2, necessary interface definitions and test procedures are already covered
by existing EFC standards. However, in Case-3, as shown in Figure 1, current On-Board Equipment (OBE)
used for DSRC-based EFC should be considered to be used for autonomous EFC covering new toll roads
in keeping consistency with present toll roads.
DSRC-OBE should be expanded functionally by cooperating with external in-vehicle devices composed
of a Global Navigation Satellite Systems (GNSS) module and/or a cellular module and/or other related
modules; therefore, DSRC-OBE is possible to be reused for new EFC environment consisting of DSRC-
based EFC and autonomous systems.
Consequently, an application interface definition between DSRC-OBE and external in-vehicle devices is
essential and should be standardized.
Figure 1 — Image of expanding toll roads and services (Case-3)
Purpose of this Technical Specification
This Technical Specification aims to make it possible for toll road operators to introduce autonomous
systems to present non-toll roads by enhancing the functionalities of DSRC-On-Board Equipment (OBE)
cooperating with external in-vehicle devices.
As listed below, this Technical Specification defines several tolling models, message sets, and data
elements to cope with diversified EFC environment in the main body, as well as data type definition
and Protocol Implementation Conformance Statement (PICS) proforma defined in Annex A and Annex B
respectively. Finally, applicable ITS-services with cooperation of DSRC-OBE and external in-vehicle
devices are listed in Annex E with an example for each of them. This Technical Specification aims at
defining the following:
— tolling models with external in-vehicle devices (in main body);
— definitions of message sets and data elements;
— data type definition and PICS proforma (in Annexes A and B);
— related example and applicable Intelligent Transport System (ITS) services (in Annex E).
vi © ISO 2014 – All rights reserved
TECHNICAL SPECIFICATION ISO/TS 16785:2014(E)
Electronic Fee Collection (EFC) — Interface definition
between DSRC-OBE and external in-vehicle devices
1 Scope
This Technical Specification defines an application interface between DSRC-based OBE and external in-
vehicle devices to make DSRC-OBE applicable for diversified tolling environment.
The scope of this Technical Specification covers the following items (also shown in Figure 2);
— Definitions of the application interface between DSRC-OBE and external in-vehicle devices (including
GNSS, cellular units, CAN interface, etc.).
— Definitions of message sets and data elements on the interface (based on a sets of base standards,
such as ISO 14906:2011, ISO/TS 17575, ISO/TS 13141, ISO/TS 12813, and ISO/TS 25110).
— For use in autonomous EFC systems, as well as DSRC-based EFC.
— For use in diversified tolling environment (in toll roads, inner-urban, inter-urban, etc.).
— For use in every kind of DSRC-OBE (based on CEN, UNI, ARIB, TTA, and GB/T).
The following items are out of the scope for this TS:
— Definitions of hardware in the external in-vehicle devices such as GNSS modules, cellular modules,
mobile devices, smartphones, etc.
— Definitions of physical interface between DSRC-OBE and external in-vehicle devices such as USB,
Bluetooth, etc.
— Definition of any ITS service other than EFC.
— Definition of algorithms for authentication, as well as encryption, and key management.
Figure 2 — Scope of this Technical Specification
Applicable DSRC-OBE
When standardizing an application interface between DSRC-OBE and external in-vehicle devices,
external in-vehicle devices should be commonly applied for every kind of DSRC-based OBE as shown in
Figure 3.
External Devices
(GNSS and/or Cellular)
Standardized Interface
CEN-DSRC UNI-DSRC
Figure 3 — Applicable DSRC-OBE
The solid and proven DSRC technology makes it possible for DSRC-OBE to have long product-life that
enables DSRC-based EFC to be operated still in the future.
On the other hand, each component of external in-vehicle devices has been developed year by year to
cope with user’s demands on high performance, as well as multi-functional devices; therefore, they
have shorter product-life rather than DSRC-OBE. Once an application interface is standardized, DSRC-
OBE can be used continuously for diversified EFC environment with enhanced new external in-vehicle
devices. See Figure 4.
Enhanced
External Devices
New External
Devices
Standardized Interface
Figure 4 — Applicability for future upgrading
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application.
...
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