ISO/TR 20529-1:2017

TECHNICAL ISO/TR
REPORT 20529-1
First edition
2017-10
Intelligent transport systems —
Framework for green ITS (G-ITS)
standards —
Part 1:
General information and use case
definitions
Systèmes de transport intelligents — Cadre pour les normes relatives
aux systèmes de transport intelligents écologiques —
Partie 1: Informations générales et définitions des cas d'utilisation
Reference number
ISO/TR 20529-1:2017(E)
©
ISO 2017

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ISO/TR 20529-1:2017(E)

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ISO/TR 20529-1:2017(E)

Contents Page
Foreword .iv
Introduction .v
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 . 2
4 Document overview and structure . 3
5 General information about this document . 4
5.1 Purpose . 4
5.2 Overview of G-ITS services . 4
6 Use case overview and definitions . 5
6.1 Use case overview . 6
6.1.1 Basic principles for use cases . 6
6.1.2 Use case clusters . 6
6.2 Use case definition . 8
6.2.1 Use case cluster 1: Eco driving . . 8
6.2.2 Use case cluster 2: Eco traffic management .11
6.2.3 Use case cluster 3: Eco mobility service .13
6.2.4 Use case cluster 4: Eco information, navigation and guidance .16
6.2.5 Use case cluster 5: Eco demand and access management .18
6.2.6 Use case cluster 6: Eco freight and logistics .21
Bibliography .23
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ISO/TR 20529-1:2017(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 on 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 the following
URL: www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 204, Intelligent transport systems.
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Introduction
The nomadic and portable devices for ITS services in ISO/TC204 are defined to facilitate the
development, promotion and standardisation 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 automotive world.
This document provides the framework guidelines to identify cost-effective technologies and related
standards required to deploy, manage and operate sustainable “green” intelligent transport systems
(ITS) technologies in surface transportations with eco-mobility.
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TECHNICAL REPORT ISO/TR 20529-1:2017(E)
Intelligent transport systems — Framework for green ITS
(G-ITS) standards —
Part 1:
General information and use case definitions
1 Scope
This document provides the framework guideline for identifying cost-effective technologies and
related standards required to deploy, manage and operate sustainable “green” intelligent transport
systems (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 green ITS standard framework builds on the existing standards and best practices of transport
operation and management systems, as well as ITS applications, and aims to accommodate to the
specific needs of eco-mobility in either mega cities or developing countries.
The G-ITS standards would expect 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 thus can impact developing
regions with little or no legacy transportation infrastructure.
The framework described in this document includes:
— G-ITS standard common framework including gap analysis of existing ITS standards;
— Guidance documents to facilitate the practical implementation of identified standards by policy
makers and engineers including related use cases.
This document includes the identification of existing International Standards for ITS in ISO/TC 204 and
existing vehicle communication network access standards.
2 Normative references
There are no normative references in this document.
3 Terms, definitions, symbols and abbreviated terms
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
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3.1.1
nomadic device
ND
personal ITS station which provides communication connectivity via equipment such as cellular
telephones, mobile wireless broadband (WIMAX, HC-SDMA, etc.), WiFi etc. and includes short range
links, such as Bluetooth, Zigbee, etc. to connect portable devices to the motor vehicle communications
system network
3.1.2
personal ITS station
P-ITS-S
ITS station in a personal ITS subsystem
3.1.3
roadside ITS station
R-ITS-S
system that receives and processes vehicular and pedestrian information within a certain zone and
determines the situation, in order to provide the safety warning and parking guide service to vehicles
and pedestrians, and that is installed at the road side
3.1.4
green ITS
G-ITS
new-concept transportation system, which is expected to arise following the paradigm shift toward
eco-friendly, low-carbon green growth in the transportation sector, as a global policy
3.1.5
eco-mobility
eco transport systems and services based on eco vehicles and their related facilities
3.2 Abbreviated terms
AEI automatic equipment identification
CALM communication access for land mobile
CAN controller area network
DMB digital multimedia broadcasting
DSRC dedicated short range communication
DTG digital tachograph
ERI electronic registration and identification
ETC electronic toll collection
EV electric vehicle
FCEV fuel cell electric vehicle
HMI human machine interface
IP internet protocol
ITS intelligent transport systems
MaaS mobility as a service
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MaT mobile all transit
MoD mobility on demand
MOST media oriented systems transport
MVCI modular vehicle communication interface
ND nomadic device
OBE on-board equipment
ODX open diagnostic data exchange
OSGi open services gateway initiative
TCP transport control protocol
PDA personal digital assistant
PHEV plug-in hybrid electric vehicle
P-ITS-S personal – intelligent transport system – station
PM personal mobility
RSE road side equipment
UDP user datagram protocol
V-ITS-SG vehicle – intelligent transport system – station gateway
WAVE wireless access for vehicular environment
WiFi wireless fidelity
WIMAX worldwide interoperability for microwave access
XML extensible mark-up language
4 Document overview and structure
This document provides all documents and references in order to support the implementation of the
applications related to standardized access to framework for green ITS (G-ITS) personal ITS station.
This document consists of the following documents.
— Part 1: General information and use case definitions
This part provides an overview of the document set and structure along with the use case definitions
and common set of resources (definitions, references), which are used for all subsequent parts.
— Part 2: Integrated mobile service application and specification
This part specifies all technical guidelines related to the integrated mobile service application for
G-ITS to be used on the personal ITS station and to be interfaced with central ITS station, vehicle
ITS station, and roadside ITS station. The guidelines will reflect the user services from the use
cases as specified in this document. The protocol will be defined according to the requirements as
specified in ISO 14817-1 and ISO 14817-2.
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5 General information about this document
5.1 Purpose
This document:
— identifies the requirements of application level framework for green ITS (G-ITS) services, that can
be frequently inserted, modified and deleted;
— identifies the method to describe the general information for all subjects related to G-ITS services
on the personal ITS station interfaced with central ITS station, vehicle ITS station, and roadside ITS
station;
— specifies the general use cases that should be included for the G-ITS services.
5.2 Overview of G-ITS services
Conceptual aspects of the green ITS (G-ITS) services should be considered as illustrated in Figure 1.
Figure 1 — G-ITS service concept
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.
The green ITS standard framework will build on the existing standards and best practices transport
operation and management systems and ITS applications, but will be customized to accommodate
specific needs of eco-mobility in countries and cities. This includes:
— survey and identification of appropriate ITS technologies and corresponding standards required to
deploy eco-mobility systems, services and infrastructure in the cities;
— identification of gaps and proposed revisions/amendments to existing standards where appropriate;
— development of a standard framework for the deployment and management of green ITS standards.
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The background and challenges of G-ITS standards are:
— as increased urbanization and traffic congestion contribute to climate change, impact the quality of
life and economic activities in many cities, Intelligent Transport Systems (ITS) hold the promise of
a better future;
— 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;
— 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 mobile
payment.
The issues for the proposition of G-ITS standards are as follows:
— Vehicles:
Vehicles which rely on plug-in electricity for their primary energy, whether or not they have an
auxiliary internal combustion engine for range extension or for keeping the battery charged up
(electric vehicles, plug-in hybrid electric vehicles, and fuel cell electric vehicles), and which is
not necessarily limited to cars, but embraces power-two-wheelers, vans, quadricycles (personal
mobility), etc.
— Infrastructure:
Roadway facilities related to eco-mobility vehicles, users, and management, i.e. charging stations,
parking zones, eco-mobility designated roadway for driving, carbon free zones, etc.
— Management:
Transportation management by national authorities and local municipalities for supporting the
introduction of such eco-mobility, giving them specific fiscal treatment or favouring their use over
conventional cars (parking facilities, access to restricted urban areas, access to bus lanes, etc.),
with respect to eco-mobility performance measures and evaluation methods, business models and
use cases, services, operation and management, and interfaces between centers, infrastructure,
vehicles, and users.
— Users:
Seamless traveller eco-mobility services with traveller information, open payment system with
green “points”.
— Commercial/Public transport vehicles:
Green functions, green measures, green services and interfaces between infrastructure, mobile,
centers, and public and commercial vehicles.
6 Use case overview and definitions
The main purpose for developing standards is to define the service platform with the related use cases.
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6.1 Use case overview
6.1.1 Basic principles for use cases
Basic principles have been established as a framework to define the use cases:
— the use cases of G-ITS services describe the interaction between the conventional ITS services
and eco-mobility for eco transport systems and services based on eco vehicles and their related
facilities;
— the use cases in this document define a sample case to G-ITS services for transport users including
drivers, public transport trippers, and pedestrians, which are applicable for any personal ITS
station.
The G-ITS services may include the following group of use cases:
— eco-driving: EV driving, on-trip eco driving support, post-trip eco driving notice, intelligent speed
adaptation, idle stop, cooperative adaptive cruise control (CACC), etc.;
— eco-traffic management: traffic signal coordination, adaptive signal control, variable speed limit,
ramp metering, incident management, etc.;
— eco-mobility service: car sharing, last mile connecting, bike sharing, ride sharing, EV charging
information, etc.;
— eco-information, navigation and guidance: EV charging station, intermodal journey planning,
eco routing and navigation, personalized multi-modal eco navigating, etc.;
— eco-demand and access management: variable/dynamic road pricing, variable parking fee
charging, green travel mileage points, carbon free zones, park and ride guidance, etc.;
— eco-freight and logistics: electronic equipment identification, electronic registration and
identification, variable/dynamic freight tolling, digital tachograph, etc.
6.1.2 Use case clusters
Table 1 provides an overview about the different use case categories. The use cases are grouped into
use case clusters.
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Table 1 — Use case clusters and associated use case overview
# – Title of use case cluster Brief description
1. Eco driving This cluster specifies green ITS services focused on vehicle driving eco-friendly
to reduce greenhouse gas development. It includes not only EV car driving itself
but also combustion engine vehicle driving support. A few functions of reducing
emissions while driving, i.e. intelligent speed adaptation and cooperative adap-
tive cruise control, should be included in this use case cluster.
— UC 1.1 – Electric vehicle (EV) driving
— UC 1.2 – On-trip eco driving support and post-trip eco driving notice
— UC 1.3 – Intelligent speed adaptation
— UC 1.4 – Idle stop
— UC 1.5 – Cooperative cruise control system
2. Eco traffic management This cluster describes traffic management issues with respect to green measures
of effectiveness (MOE) in transportation, which may reduce traffic congestion in
transport networks. These use cases are designed to provide smooth traffic flow
by preventing inefficient waiting time on roadways due to heavy traffic congestion.
— UC 2.1 – Traffic signal coordination
— UC 2.2 – Adaptive signal control
— UC 2.3 – Variable speed limit
— UC 2.4 – Ramp metering
— UC 2.5 – Incident management
3. Eco mobility service This cluster deals with consumers who can avail themselves of various mobility
services through the use of mobile applications or web interfaces through nomad-
ic devices that can allow them to plan, travel and pay for mobility services that
best fit their needs.
— UC 3.1 – Car sharing or bike sharing
— UC 3.2 – Last mile or first mile connecting
— UC 3.3 – Ride sharing
— UC 3.4 – EV charging information
— UC 3.5 – Mobility as a service or mobility on demand
— UC 3.6 – Mobile all transit
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Table 1 (continued)
# – Title of use case cluster Brief description
4. Eco information, naviga- This cluster describes information provision to drivers.
tion and guidance
— UC 4.1 – EV charging station
— UC 4.2 – Intermodal journey planning
— UC 4.3 – Route guidance and navigation
— UC 4.4 – Personalized multi-modal navigating
5. Eco demand and access This cluster specifies a few policy issues for controlling traffic demand and man-
management agement in order to reduce the number of vehicles accessing a specific area.
— UC 5.1 – Variable/dynamic road pricing
— UC 5.2 – Variable parking fee charging
— UC 5.3 – Green travel mileage points
— UC 5.4 – Carbon free zones setting and management
— UC 5.5 – Park and ride guidance
6. Eco freight and logistics This cluster describes specific services for freight and/or commercial vehicle
operation in order to monitor and manage vehicles accessing a specific area.
— UC 6.1 – Electronic registration identification
— UC 6.2 – Variable/dynamic freight tolling
— UC 6.3 – Electronic equipment identification
— UC 6.4 – Digital tachograph
The detailed definition of each use case is defined in 6.2.
6.2 Use case definition
6.2.1 Use case cluster 1: Eco driving
6.2.1.1 Electric vehicle (EV) driving
Table 2 — UC 1.1 EV driving
Use case name EV driving
Actor EV driver, nomadic device, cloud server
Goal Eco driving identification and notification through EV
Use case input EV identification
Use case output EV driving notification
Brief Electric vehicle (EV) uses one or more electric motors or traction motors for propulsion, that
description could not produce air pollution during the operation compared to the internal combustion
engine (ICE) cars.
This information may include:
— Vehicle Identification Number (VIN);
— EV driving mileage.
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6.2.1.2 On-trip eco driving support and post-trip eco driving notice
Table 3 — UC 1.2 On-trip eco driving support and post-trip eco driving notice
Use case name On-trip eco driving support and post-trip eco driving notice
Actor Vehicle driver, nomadic device, cloud server
Goal Eco driving identification and notification through eco driving requests
Use case input Eco driving request by nomadic device
Use case output Eco driving display and notification
Brief On-trip eco driving support might provide drivers with better fuel efficiency while driving
description by combining several one mile trips by reducing the number of engine stops, following the
speed limit, maintaining the vehicles, etc.
This information may include:
— Vehicle Identification Number (VIN);
— Drivers’ requests for eco-driving modes.
6.2.1.3 Intelligent speed adaptation (ISA)
Table 4 — UC 1.3 Intelligent speed adaptation (ISA)
Use case name Intelligent speed adaptation (ISA)
Actor Vehicle driver, nomadic device, roadside equipment (RSE), cloud server
Goal Eco driving identification and notification through ISA
Use case input ISA operation
Use case output Eco driving display and notification
Brief Intelligent speed adaptation (ISA) is an in-vehicle system that supports drivers’ compliance
description with the speed limit. It might be considered as an eco-driving function that increases fuel
efficiency while driving.
This information may include:
— Vehicle Identification Number (VIN);
— Activation and deactivation of ISA while driving.
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6.2.1.4 Idle stop
Table 5 — UC 1.4 Idle stop
Use case name Idle stop
Actor Vehicle driver, nomadic device, cloud server
Goal Eco driving identification and notification through idle stop
Use case input Idle stop operation
Use case output Eco driving display and notification
Brief Automatically stops and restarts the engine to help maximize the fuel economy, depending
description on environmental and vehicle conditions. Activating auto idle stop when the vehicle stops
with the gear position in Drive (D) and the brake pedal is pressed, the engine turns off and
the auto idle stop indicator appears if conditions permit.
This information may include:
— Vehicle Identification Number (VIN);
— Activation and deactivation of auto idle stop when vehicle stops.
6.2.1.5 Cooperative adaptive cruise control (CACC) system
Table 6 — UC 1.5 Cooperative adaptive cruise control (CACC) system
Use case name Cooperative adaptive cruise control (CACC) system
Actor Vehicle driver, nomadic device, cloud server
Goal Eco driving identification and notification through CACC
Use case input CACC operation
Use case output Eco driving display and notification
Brief Cooperative Adaptive Cruise Control (CACC) is an extension to the Adaptive Cruise Control
description (ACC) system, which realizes longitudinal automated vehicle control utilizing DSRC or WAVE
technology providing connectivity between vehicle and infrastructure (V2I). CACC may
improve stability and fuel efficiency by reducing the delay of the response to the preceding
vehicle.
This information may include:
— Vehicle Identification Number (VIN);
— Activation and deactivation of CACC.
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6.2.2 Use case cluster 2: Eco traffic management
6.2.2.1 Traffic signal coordination
Table 7 — UC 2.1 Traffic signal coordination
Use case name Traffic signal coordination
Actor Local signal controllers, central controller
Goal Eco traffic management by traffic signal coordination to facilitate smooth traffic flow
Use case input Signal coordination phasing
Use case output Effectiveness of traffic flow
Brief Traffic signal coordination is a method of timing groups of traffic signals along an arterial to
description provide for the smooth movement of traffic with minimal stops. The coordination of traffic
signals to facilitate smooth traffic flow (progressed movement) along a corridor is one type
of eco traffic management in urban networks. The quality of the resulting progression is a
function of the spacing of the signals, the prevailing speed, and the amount of traffic coming
in and out of driveways between traffic signals, the uniformity of intersection sizes, and
the traffic signal cycle length.
This information may include:
— Green signal progression;
— Signal phasing and timing (SPaT).
6.2.2.2 Adaptive signal control
Table 8 — UC 2.2 Adaptive signal control
Use case name Adaptive signal control
Actor Local signal controllers, central controller, vehicle detection system
Goal Eco traffic management by adaptive signal control based on actual traffic demand
Use case input Green phasing and timing
Use case output Effectiveness of traffic flow
Brief Adaptive traffic control is an eco-traffic management strategy in which traffic signal phasing
...