ISO 13184-2:2016

Intelligent transport systems (ITS) — Guidance protocol via personal ITS station for advisory safety systems — Part 2: Road guidance protocol (RGP) requirements and specification

ISO 13184-2:2016 specifies the road guidance use cases on the DXM to provide the real-time decision support system to drivers or pedestrians using P-ITS-S. The road guidance protocol (RGP) is an instantiation of the data exchange message (DXM), which represents a generic message to exchange data between ITS stations. The RGP defines an interoperable service protocol between P-ITS-S and R-ITS-S for exchanging data elements. This part of ISO 13184 specifies the following: - Reference architecture for real-time decision support system. This reference architecture provides a general structure for the real-time decision support system and the method of message exchange between the P-ITS-S and the R-ITS-S. This reference architecture is used to build the interconnections between the P-ITS-S and the R-ITS-S. - Technique of application protocol design for various use cases on a P-ITS-S. This technique adopts a flexible and extendable protocol design. In many cases, the application protocol for the ITS is designed to provide a set of messages that is dependent on the use cases and the message exchange method. However, it is not easy to enumerate all use cases for some applications. The use cases can be changed or enhanced frequently. For this type of application, the protocol design, depending on the use cases, is not appropriate. This part of ISO 13184 provides a general technique of designing the road guidance application protocol based on the use cases. - Primitive data element. The primitive data element will be commonly used to configure the safety warning and parking guide service in the form of speed, location and time. - Use cases at the road and parking spaces for warning and parking guide. This part of ISO 13184 describes the use cases applicable to the communication services between the P-ITS-S and the R-ITS-S for the purposes of providing safety warning and parking guidance. ISO 13184 (all parts) have been aligned according to the requirements specified in ISO 21217, ISO/TS 17419 and ISO/TS 17423. ISO 13184-2:2016 only specifies the RGP messages based on the DXM definition (see Annex B and Annex C) at real-time. The content of the RGP messages are based on the definition of road guidance use cases as documented in ISO 13184?1. This part of ISO 13184 implements ITS-SU objects, which is a general reference to ITS application objects, ITS message sets and other objects which may require globally unique identification and registration. The management of ITS-SU objects is many-fold, e.g. specified in ISO 24102?4, ISO 24102?5, ISO 24102?6, ISO 24102?7, ISO 24102?8 and ISO 24102?9, and in CEN/ISO/TS 17423. This part of ISO 13184 implements authorized and controlled operation of ITS-SU objects, which requires considerations of ITS-SU object identifiers, i.e. ITS-AID, ITS-MsgSetID, ITS-SUID, ITS-SCUID, addresses and protocol identifiers used in the communication protocol stack of an ITS-S, and others. NOTE The accuracy of the navigation and positioning system as input to the Road Guidance application is important for road guidance but is not part of the ISO 13184 series. Detailed information about crossroads is needed for implementation of Road Guidance applications.

Systèmes intelligents de transport — Protocole d'orientation par station ITS personnelle pour systèmes à avis de sécurité — Partie 2: Spécifications et exigences du protocole d'orientation routière

General Information

• Status: Published
• Publication Date: 18-May-2016
• ICS: 03.220.01 - Transport in general
• ICS: 35.240.60 - IT applications in transport
• Technical Committee: ISO/TC 204 - Intelligent transport systems
• Drafting Committee: ISO/TC 204/WG 17 - Nomadic Devices in ITS Systems
• Current Stage: 9060 - Close of review
• Start Date: 02-Dec-2026

Relations

• Consolidated By: ISO/TS 17574:2017 - Electronic fee collection — Guidelines for security protection profiles
• Effective Date: 06-Jun-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 13184-2
First edition
2016-05-15
Intelligent transport systems (ITS) —
Guidance protocol via personal ITS
station for advisory safety systems —
Part 2:
Road guidance protocol (RGP)
requirements and specification
Systèmes intelligents de transport — Protocole d’orientation par
station ITS personnelle pour systèmes à avis de sécurité —
Partie 2: Spécifications et exigences du protocole d’orientation
routière
Reference number
ISO 13184-2:2016(E)
©
ISO 2016

---------------------- Page: 1 ----------------------
ISO 13184-2:2016(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2016, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
CH-1214 Vernier, Geneva, Switzerland
Tel. [phone]
Fax [phone]
[e-mail]
www.iso.org
ii © ISO 2016 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 13184-2:2016(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Abbreviated terms . 3
5 Conventions . 4
6 Road guidance implementation overview . 4
7 Use cases implementation into the road guidance protocol . 7
7.1 Use case clusters overview . 7
7.2 Use cases implementation . 9
7.2.1 UC cluster 1 — Crossroads with a traffic signal . 9
7.2.2 UC cluster 2 — Crossroads .13
7.2.3 UC cluster 3 — Parking space .14
7.2.4 UC cluster 4 — Risky environment alarm .15
8 RGP messages .21
8.1 Overview .21
8.2 Real-time RGP “Data eXchange Message” communication .22
9 RGP defined data exchange messages .24
9.1 General Data eXchange Message definition .24
9.2 notify-on-position.25
9.2.1 Definition .25
9.2.2 Example .28
9.3 stop-notify .29
9.3.1 Definition .29
9.3.2 Example .29
9.4 collision-possible .30
9.4.1 Definition .30
9.4.2 Example .32
9.5 vehicle-blocks-road .32
9.5.1 Definition .32
9.5.2 Example .33
9.6 pedestrian-blocks-road .34
9.6.1 Definition .34
9.6.2 Example .34
9.7 bumper-to-bumper .35
9.7.1 Definition .35
9.7.2 Example .35
9.8 crossing-priority .36
9.8.1 Definition .36
9.8.2 Example .36
9.9 oncoming-vehicle .37
9.9.1 Definition .37
9.9.2 Example .37
9.10 overspeed .38
9.10.1 Definition .38
9.10.2 Example .39
9.11 bad-weather .39
9.11.1 Definition .39
9.11.2 Example .41
9.12 speed-limit .42
© ISO 2016 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 13184-2:2016(E)

9.12.1 Definition .42
9.12.2 Example .42
9.13 road-occupation .43
9.13.1 Definition .43
9.13.2 Example .44
9.14 emergency-vehicle .45
9.14.1 Definition .45
9.14.2 Example .46
9.15 release.47
9.15.1 Definition .47
9.15.2 Example .47
9.16 search-parking-space .48
9.16.1 Definition .48
9.16.2 Example .50
9.17 guide-parking-space .51
9.17.1 Definition .51
9.17.2 Example .52
Annex A (normative) Vehicle Interface Data Format (VIDF) .54
Annex B (normative) Data eXchange Message definition .74
Annex C (normative) Data eXchange Message ASN.1 definition .76
Annex D (informative) Requirements .82
Bibliography .83
iv © ISO 2016 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 13184-2:2016(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 meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical
Barriers to Trade (TBT), see the following URL: Foreword — Supplementary information.
The committee responsible for this document is ISO/TC 204, Intelligent transport systems.
ISO 13184 consists of the following parts, under the general title Intelligent transport systems (ITS) —
Guidance protocol via personal ITS station for advisory safety systems:
— Part 1: General information and use cases definition
— Part 2: Road guidance protocol (RGP) requirements and specification
Additional part dealing with road guidance protocol (RGP) conformance test specification is under
preparation.
© ISO 2016 – All rights reserved v

---------------------- Page: 5 ----------------------
ISO 13184-2:2016(E)

Introduction
This part of ISO 13184 specifies the use cases implementation of a real-time decision support system for
guidance information, designed to enhance mobility and vehicle safety and to provide a parking guide
service using the Personal ITS Station (P-ITS-S). The purpose of the system is to transmit guidance or
warning messages to drivers and pedestrians in real-time, enhance the user’s convenience and avoid
congestion in parking facilities by preventing accidents and enabling easy parking.
This part of ISO 13184 implements the road guidance protocol (RGP) requirements (derived from the
use cases defined in ISO 13184–1) based on the Data eXchange Message (DXM) at the application level
regarding the safety warning and parking guide services between the Roadside ITS Station (R-ITS-S)
installed at the roadside and the user’s Personal ITS Station (P-ITS-S), e.g. Nomadic Device.
This part of ISO 13184 covers subjects related to traffic safety, including pedestrians besides vehicle
drivers. Therefore, this DXM implementation describes how the safety-related services are provided
using the P-ITS-S.
This system is based on the following assumptions.
— Based on the fact that the P-ITS-S has limited resources considers these limitations.
— Use cases related to the safety warning and parking guide service can be classified in various ways.
These use cases can be added or deleted frequently depending on the specific circumstances of
roads and parking spaces. Therefore, the DXM implementation design needs to be flexible and
extendable, which enables to add or delete the use cases conveniently.
— The DXM implementation of road guidance contains data elements to configure the message
transmitted between the ITS Stations.
— The major use cases include safety warnings at roads and parking guide services to be used between
the R-ITS-S and the P-ITS-S.
vi © ISO 2016 – All rights reserved

---------------------- Page: 6 ----------------------
INTERNATIONAL STANDARD ISO 13184-2:2016(E)
Intelligent transport systems (ITS) — Guidance protocol
via personal ITS station for advisory safety systems —
Part 2:
Road guidance protocol (RGP) requirements and
specification
Systèmes intelligents de transport -- Protocole d’orientation par station ITS personnelle pour systèmes à
avis de sécurité -- Partie 2
1 Scope
This part of ISO 13184 specifies the road guidance use cases on the DXM to provide the real-time
decision support system to drivers or pedestrians using P-ITS-S. The road guidance protocol (RGP) is
an instantiation of the data exchange message (DXM), which represents a generic message to exchange
data between ITS stations.
The RGP defines an interoperable service protocol between P-ITS-S and R-ITS-S for exchanging data
elements. This part of ISO 13184 specifies the following:
— Reference architecture for real-time decision support system.
This reference architecture provides a general structure for the real-time decision support
system and the method of message exchange between the P-ITS-S and the R-ITS-S. This reference
architecture is used to build the interconnections between the P-ITS-S and the R-ITS-S.
— Technique of application protocol design for various use cases on a P-ITS-S.
This technique adopts a flexible and extendable protocol design. In many cases, the application
protocol for the ITS is designed to provide a set of messages that is dependent on the use cases
and the message exchange method. However, it is not easy to enumerate all use cases for some
applications. The use cases can be changed or enhanced frequently. For this type of application, the
protocol design, depending on the use cases, is not appropriate. This part of ISO 13184 provides a
general technique of designing the road guidance application protocol based on the use cases.
— Primitive data element.
The primitive data element will be commonly used to configure the safety warning and parking
guide service in the form of speed, location and time.
— Use cases at the road and parking spaces for warning and parking guide.
This part of ISO 13184 describes the use cases applicable to the communication services between
the P-ITS-S and the R-ITS-S for the purposes of providing safety warning and parking guidance.
ISO 13184 (all parts) have been aligned according to the requirements specified in ISO 21217,
ISO/TS 17419 and ISO/TS 17423.
This part of ISO 13184 only specifies the RGP messages based on the DXM definition (see Annex B
and Annex C) at real-time. The content of the RGP messages are based on the definition of road guidance
use cases as documented in ISO 13184–1.
This part of ISO 13184 implements ITS-SU objects, which is a general reference to ITS application
objects, ITS message sets and other objects which may require globally unique identification and
registration.
© ISO 2016 – All rights reserved 1

---------------------- Page: 7 ----------------------
ISO 13184-2:2016(E)

The management of ITS-SU objects is many-fold, e.g. specified in ISO 24102–4, ISO 24102–5, ISO 24102–
6, ISO 24102–7, ISO 24102–8 and ISO 24102–9, and in CEN/ISO/TS 17423. This part of ISO 13184
implements authorized and controlled operation of ITS-SU objects, which requires considerations of
ITS-SU object identifiers, i.e. ITS-AID, ITS-MsgSetID, ITS-SUID, ITS-SCUID, addresses and protocol
identifiers used in the communication protocol stack of an ITS-S, and others.
NOTE The accuracy of the navigation and positioning system as input to the Road Guidance application is
important for road guidance but is not part of the ISO 13184 series. Detailed information about crossroads is
needed for implementation of Road Guidance applications.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO/TS 17419, Intelligent transport systems — Cooperative systems — Classification and management of
ITS applications in a global context
ISO/TS 17423, Intelligent transport systems — Cooperative systems — ITS application requirements and
objectives for selection of communication profiles
ISO 21217, Intelligent transport systems — Communications access for land mobiles (CALM) — Architecture
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO/TS 17419, ISO/TS 17423,
ISO 21217 and the following apply.
3.1
FA-SAP
service access point between facilities and application layer
3.2
GPS coordinates
collection of GPS position and time
3.3
GPS position
collection of GPS latitude, longitude and altitude
3.4
ITS-S capability (ITS-S capabilities)
uniquely addressable protocol functionality
3.5
ITS station
ITS-S
entity in a communication network, comprised of application, facilities, networking and access layer
components specified in ISO 21217 that operate within a bounded secure management domain
3.6
ITS-S application process
ITS-S AP
element in an ITS station that performs information processing for a particular application, and uses
ITS-S services to transmit and receive information
2 © ISO 2016 – All rights reserved

---------------------- Page: 8 ----------------------
ISO 13184-2:2016(E)

3.7
ITS-S application process provisioner
ITS-S APP
functionality in an ITS-SU offering ITS-S application processes (3.6) for download and installation to
other ITS-Ss
3.8
personal ITS station
P-ITS-S
implementation of an ITS station as personal ITS subsystem
Note 1 to entry: P-ITS-S is used to send the information of each user (drivers and pedestrians) to the roadside ITS
station, and receives the safety warning and parking guide service and transfers them to the users.
3.9
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
Note 1 to entry: The system is installed at the roadside.
3.10
sensor
device designed to collect general information (e.g., road surface state, potential hazard vehicle’s speed)
within the server’s zone
3.11
WGS-84 coordinate system
WGS-84 is the reference system used in the satellite-based positioning system NAVSTAR Global
Positioning System (GPS)
Note 1 to entry: The World Geodetic System (WGS) is a standard for use in cartography, geodesy, and navigation.
The latest revision is WGS-84.
4 Abbreviated terms
ADU application data unit
AP application process
ASN.1 abstract syntax notation one
BT Bluetooth
C conditional
C-ITS-S central–intelligent transport system–station
CRC cyclic redundancy check
Cvt convention (M, O, C)
DER distinguished encoding rules
DTC diagnostic trouble code
DXM data exchange message
FA-SAP facility application–service access point
GPS global positioning system
HTML hypertext mark-up language
ITS intelligent transport systems
ITS-AID intelligent transport systems–application identifier
ITS-MsgSetID intelligent transport systems–message set identifier
© ISO 2016 – All rights reserved 3

---------------------- Page: 9 ----------------------
ISO 13184-2:2016(E)

ITS-S intelligent transport systems–station
ITS-SU intelligent transport systems–station unit
ITS-SCUID intelligent transport systems–station communication unit identifier
ITS-SUID intelligent transport systems–station unit identifier
ITS-S AP intelligent transport systems–ITS-S application process
ITS-S APP intelligent transport systems–ITS-S application process provisioner
L2CAP logical link control and adaptation protocol
M mandatory
ND nomadic device
O optional
OBEX object exchange
OSI open systems interconnection
PER packed encoding rules
P-ITS-S personal–intelligent transport system-station
R-ITS-S roadside–intelligent transport system-station
RGP road guidance protocol
SDP service discovery protocol
SGML standard generalized mark-up language
UCDF use case description format
UGP unified gateway protocol
VIN vehicle identification number
V-ITS-SG vehicle–intelligent transport system-station gateway
WGS-84 World Geodetic System 1984
5 Conventions
This part of ISO 13184 is based on the conventions discussed in the OSI Service Conventions
(ISO/IEC 10731) as they apply for communication services. The vehicle data transfer protocol is
applicable to OSI layers 5, 6 and 7.
6 Road guidance implementation overview
The Road Guidance will be implemented in Data eXchange Message (DXM) which is another way of
transmitting data. Other standards directly define ASN.1 elements for every parameter (see ETSI
EN 302 637–2, SAE J2735 or ETSI/TS 101 539–1). However, DXM defines data parameters, its types,
units, etc. DXM defines flexible messages because every message consists of a message ID (iTSmsID)
and a list of registered value identifiers (rvIds) referencing data parameters. New messages can be
defined by adding rvIds to the list, new data parameters can be defined by referring data types.
The road guidance DXM implementation considers conditions such as limited resources because
the user receives the service from a P-ITS-S. It is undesirable that all use cases be implemented and
installed in a light-weight nomadic device, as elements of the road environment, such as crossroads
and the parking environment, are very diverse in their forms. In addition, the service environment at
crossroads and parking spaces varies, depending on the time and the area, and undergoes a relatively
large number of changes. Therefore, use cases may need to be added/modified/deleted. As a result,
the nomadic device can work as an obstacle to smooth service provisioning and service expansion, as
it has the burden of
...