ISO 20529-2:2021

FINAL
INTERNATIONAL ISO/FDIS
DRAFT
STANDARD 20529-2
ISO/TC 204
Intelligent transport systems —
Secretariat: ANSI
Framework for Green ITS (G-ITS)
Voting begins on:
2021-08-17 standards —
Voting terminates on:
Part 2:
2021-10-12
Integrated mobile service applications
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BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/FDIS 20529-2:2021(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
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©
NATIONAL REGULATIONS. ISO 2021

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ISO/FDIS 20529-2:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO/FDIS 20529-2:2021(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms, definitions, symbols and abbreviated terms . 1
3.1 Terms and definitions . 1
3.2 Abbreviated terms . 3
4 Document overview and structure . 3
5 General information . 3
5.1 Purpose of this document . 3
5.2 Overview of G-ITS services . 4
6 Use case overview and definitions . 5
6.1 Use case overview . 5
6.1.1 Basic principles for use cases . 5
6.1.2 Use case clusters . 5
6.2 Use case definition . 7
6.2.1 Service applications 1: Route selection . 7
6.2.2 Service applications 2: Passenger-car-based .11
6.2.3 Service Applications 3: Non-passenger-car-based .19
7 G-ITS data exchange format .20
7.1 Schedule-Info-Edit .20
7.1.1 Definition .20
7.1.2 Example .21
7.2 Schedule-Info-Req .22
7.2.1 Definition .22
7.2.2 Example .23
7.3 Schedule-Info .23
7.3.1 Definition .23
7.3.2 Example .24
7.4 Route-Plan-Req .25
7.4.1 Definition .25
7.4.2 Example .26
7.5 Route-Plan-Info .27
7.5.1 Definition .27
7.5.2 Example .29
7.6 Route-Pub-Req .32
7.6.1 Definition .32
7.6.2 Example .33
7.7 Route-Pub-Res .34
7.7.1 Definition .34
7.7.2 Example .36
7.8 Carbon-Free-Info .38
7.8.1 Definition .38
7.8.2 Example .39
7.9 Mobile-Card-Edit .41
7.9.1 Definition .41
7.9.2 Example .41
7.10 Eco-Driving-Info.42
7.10.1 Definition .42
7.10.2 Example .43
7.11 Eco-Driving-Res .44
7.11.1 Definition .44
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ISO/FDIS 20529-2:2021(E)

7.11.2 Example .45
7.12 Eco-Traffic-Info.46
7.12.1 Definition .46
7.12.2 Example .47
7.13 Eco-Weather-Info .49
7.13.1 Definition .49
7.13.2 Example .50
7.14 Eco-Accident-Info .52
7.14.1 Definition .52
7.14.2 Example .52
7.15 Route-Navi-Req.53
7.15.1 Definition .53
7.15.2 Example .54
7.16 Route-Navi-Info .55
7.16.1 Definition .55
7.16.2 Example .56
7.17 Parking-Lot-Info.57
7.17.1 Definitions .57
7.17.2 Example .59
7.18 Parking-Ride-Info .60
7.18.1 Definition .60
7.18.2 Example .61
7.19 User-Response .62
7.19.1 Definition .62
7.19.2 Example .63
Bibliography .64
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ISO/FDIS 20529-2:2021(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.
A list of all parts in the ISO 20529 series can be found on the ISO website.
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/FDIS 20529-2:2021(E)

Introduction
Work by ISO/TC 204 on nomadic and portable devices for intelligent transport systems (ITS) services
is defined to facilitate the development, promotion and standardization of the use of nomadic and
portable devices to support ITS service provision and multimedia use (such as passenger information,
automotive information, driver advisories and warning systems and entertainment system interfaces)
to ITS service providers and motor vehicle communication networks. This document fosters the
introduction of multimedia and telematics nomadic devices in the public transport and the automotive
world.
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FINAL DRAFT INTERNATIONAL STANDARD ISO/FDIS 20529-2:2021(E)
Intelligent transport systems — Framework for Green ITS
(G-ITS) standards —
Part 2:
Integrated mobile service applications
1 Scope
This document provides information and requirements for identifying cost-effective technologies and
related standards required to deploy, manage and operate sustainable “green” ITS technologies in
surface transportations with eco-mobility. These ITS technologies can increase operational efficiencies
and unlock enhanced transportation safety and eco-mobility applications.
The ISO 20529 series builds on the existing standards and best practices of transport operation and
management systems, as well as ITS applications, and aims to accommodate the specific needs of eco-
mobility.
G-ITS standards are expected to focus on the use of data exchange interface standards to enable the
deployment of cloud-based multi-modal mobility solutions using wireless networks and nomadic
devices. These forward-looking solutions are “infrastructure light” and can thus impact developing
regions with little or no legacy transportation infrastructure.
This document is intended to provide mobility information according to user preference on demand,
utilizing a variety of existing apps on nomadic devices related to various means of transport. An
integrated mobility information platform is defined in this document as a service methodology to be
integrated with a variety of mobile apps with respect to different modes of transport.
The framework described in this document includes:
— Identification of implementation aspects of related standards by means of use case.
— Identification of the multi-modal transport information necessary to support G-ITS.
— Eco-friendly route guidance according to user preference.
— Smart modal choice service based on carbon footprint, fuel efficiency and carbon-free zones for
G-ITS.
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 14817-1, Intelligent transport systems — ITS central data dictionaries — Part 1: Requirements for ITS
data definitions
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
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ISO/FDIS 20529-2:2021(E)

ISO and IEC maintain terminological 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/
3.1.1
nomadic device
ND
implementation of a personal ITS station (3.1.2) which provides communication connectivity via
equipment such as cellular telephones, mobile wireless broadband (WIMAX, HC-SDMA, etc.) or WiFi,
and includes short range links, such as Bluetooth or Zigbee to connect portable devices to the motor
vehicle communications system network
[SOURCE: ISO 18561-1:2020, 3.1.1]
3.1.2
personal ITS station
P-ITS-S
implementation of an ITS station in a personal ITS subsystem
[SOURCE: ISO 18561-1:2020, 3.1.2]
3.1.3
roadside ITS station
R-ITS-S
system installed at the roadside that receives and processes vehicular and pedestrian information
within a certain zone and determines the situation in order to provide a safety warning and parking
guide service to vehicles and pedestrians
[SOURCE: ISO 18561-1:2020, 3.1.3]
3.1.4
Green ITS
G-ITS
new-concept transportation system expected to arise following the paradigm shift toward eco-friendly,
low-carbon green growth as global policies in the transportation sector
[SOURCE: ISO 18561-1:2020, 3.1.4, modified – added “in the transportation sector”.]
3.1.5
eco-mobility
eco-transport systems and services based on eco-vehicles and their related facilities
[SOURCE: ISO 18561-1:2020, 3.1.5]
3.1.6
central ITS station
ITS station assuming a central role
[SOURCE: ISO 18561-1:2020, 3.1.6]
3.1.7
eco-mileage
incentive given to transport users who voluntarily cut back on fossil fuels in utilizing transportation
modes
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ISO/FDIS 20529-2:2021(E)

3.2 Abbreviated terms
ASN.1 abstract syntax notation one
C conditional
Cvt convention (M, O, C, S)
M mandatory
MaaS mobility as a service
MoD mobility on demand
O optional
S structure
WiFi wireless fidelity
WIMAX worldwide interoperability for microwave access
4 Document overview and structure
This document provides all documents and references required to support the implementation of the
requirements related to standardized access to the framework for green ITS (G-ITS) personal ITS
stations. The ISO 20529 series consists of the following documents:
— Part 1: General information and use case definition
This part provides an overview of the ISO 20529 series and document structure along with the
use case definition and common set of resources (definitions, references), which are used for all
subsequent parts.
— Part 2 (this document): Integrated mobile service application and specification
This document specifies all technical requirements related to the integrated mobile service
application for G-ITS to be used on the personal ITS station and to be interfaced with the central
ITS station, vehicle ITS station and roadside ITS station. The requirements reflect the user services
from the use cases as specified in the relevant sections of ISO 20529-1. The protocol shall be defined
according to the requirements as specified in ISO 14817-1.
5 General information
5.1 Purpose of this document
This document addresses three major areas:
— Identification of the requirements of application level framework for green ITS (G-ITS) services,
that can be frequently inserted, modified and deleted;
— Identification of the method to describe the general information for all subjects related to G-ITS
services on the personal ITS station interfaced with the central ITS station, vehicle ITS station, and
roadside ITS station;
— Specification of the general use cases that should be included for the G-ITS services.
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ISO/FDIS 20529-2:2021(E)

5.2 Overview of G-ITS services
The document mainly describes eco-mobility services, eco-information, navigation and guidance.
ISO/TC 204 plans to develop standards, specifications and informational reports for central and local
government officials who intend to manage and operate green ITS in their respective cities with eco-
mobility.
Examples include the delivery and management of ITS services using wireless networks and personal
nomadic devices, as well as the use of commercial off-the-shelf technologies and services, such as
smartphone apps for public transit route planning and obtaining road congestion information for use
by traffic management centres and personal route planning, etc.
The green ITS standard framework will build on the existing standards and best practices in transport
operation and management systems and ITS applications, but will be customized to accommodate the
specific needs of eco-mobility in countries and cities. This includes:
— the surveying and identification of appropriate ITS technologies and corresponding standards
required to deploy eco-mobility systems and services and infrastructure in the cities;
— the identification of gaps and proposed revisions/amendments to existing standards where
appropriate; and
— the development of a standard framework for the deployment and management of green ITS
standards.
As increased urbanization and traffic congestion contribute to climate change and impact on the quality
of life and economic activities in many cities, ITS hold the promise of a better future. The challenges of
G-ITS standards are:
— the creation of a mobility ecosystem where consumers can avail themselves of various mobility
services through the use of mobile applications or web interfaces through nomadic devices that can
allow them to plan, travel and pay for mobility services that best fit their needs;
— the evolution of transportation in regions from an isolated, stove-piped network of public transit,
toll, parking, taxi, and other transportation services to a more integrated, multi-modal, convergence
of publicly delivered and privately delivered mobility services;
— addressing the new mobility ecosystem in grass roots partnerships between public transport and
shared mobility services, as well as through mobile mobility and demand management application
providers that provide multi-modal trip planning, targeted traveller information, and increasingly,
payment.
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ISO/FDIS 20529-2:2021(E)

6 Use case overview and definitions
6.1 Use case overview
6.1.1 Basic principles for use cases
Basic use cases are separated into two steps:
a) making a choice of routes according to user preference;
b) deciding on a mode of transport, either by passenger car or not (modal choice).
The G-ITS services shall include the following group of use cases:
Figure 1 — Use case overview
Route choices are based on user preferences, including personal trip schedule and plans, previous route
selections, mobile all transit or mobility on demand, carbon-free zone, etc.
Modal choices include either taking a passenger car from the beginning of a personal tri
...