1、BSI Standards Publication PD CEN ISO/TS 17426:2016 Intelligent transport systems Cooperative systems Contextual speeds (ISO/TS 17426:2016)PD CEN ISO/TS 17426:2016 PUBLISHED DOCUMENT National foreword This Published Document is the UK implementation of CEN ISO/TS 17426:2016. The UK participation in i
2、ts preparation was entrusted to Technical Committee EPL/278, Intelligent transport systems. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsibl
3、e for its correct application. The British Standards Institution 2016. Published by BSI Standards Limited 2016 ISBN 978 0 580 83283 3 ICS 03.220.01; 35.240.60 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority o
4、f the Standards Policy and Strategy Committee on 31 March 2016. Amendments issued since publication Date Text affected TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN ISO/TS 17426 March 2016 ICS 03.220.01; 35.240.60 English Version Intelligent transport systems - Cooperat
5、ive systems - Contextual speeds (ISO/TS 17426:2016) Systmes intelligents de transport - Systmes coopratifs - Vitesses contextuelles (ISO/TS 17426:2016) Intelligente Transportsysteme (ITS) - Kooperative Systeme - Kontextuelle Geschwindigkeiten (ISO/TS 17426:2016) This Technical Specification (CEN/TS)
6、 was approved by CEN on 25 January 2016 for provisional application. The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their comments, particularly on the question whether the CEN/TS can be converted into a Europ
7、ean Standard. CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the fin
8、al decision about the possible conversion of the CEN/TS into an EN is reached. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ir
9、eland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management C
10、entre: Avenue Marnix 17, B-1000 Brussels 2016 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN ISO/TS 17426:2016 EPD CEN ISO/TS 17426:2016 CEN ISO/TS 17426:2016 (E) 3 European foreword This document (CEN ISO/TS 17426:2016) has been
11、 prepared by Technical Committee ISO/TC 204 “Intelligent transport systems“ in collaboration with Technical Committee CEN/TC 278 “Road transport and traffic telematics” the secretariat of which is held by NEN. Attention is drawn to the possibility that some of the elements of this document may be th
12、e subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CENELEC by the European Commission and the European Free Trade Association. According to the CEN-CENELEC Internal Regul
13、ations, the national standards organizations of the following countries are bound to announce this Technical Specification: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Irelan
14、d, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO/TS 17426:2016 has been approved by CEN as CEN ISO/TS 17426:2016 without any modification.
15、PD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E)Foreword iv Introduction v 1 Scope . 1 2 Conformance . 2 3 Normative references 2 4 T erms and definitions . 2 5 Symbols and abbreviated terms . 3 6 Contextual Speeds: Architecture 4 7 Contextual speeds: Use cases . 5 7.1 General . 5 7.2 Use case 1: Provis
16、ion of mandatory speed limit information into vehicle for driver awareness purposes 6 7.3 Use case 2 - Provision of advisory speed information into vehicle for driver awareness purposes 10 8 Contextual speeds: Roles and responsibilities .14 8.1 Scenarios for contextual speeds 14 8.2 System operation
17、 roles in scenario 7 15 8.3 Possible actors in the Contextual Speed Information Service .15 9 Contextual speeds: Characteristics.16 10 Contextual speeds: General service requirements 16 11 Contextual speeds: Communication requirements .17 11.1 General 17 11.2 General communication requirements .18 1
18、1.2.1 General.18 11.2.2 ITS-S application processes of the Contextual Speed Application .18 11.2.3 Flow types of the Contextual Speed Application .18 11.2.4 Flow Type 1 of the Contextual Speed Application .19 11.2.5 Flow Type 2 of the Contextual Speed Application .19 11.2.6 Flow Type 3 of the Contex
19、tual Speed Application .20 11.2.7 Sources and Sink ITS stations of the Flow Types 21 11.2.8 Other general communication requirements 21 11.3 Application specific data element requirements 21 Annex A (normative) C ont e xtual speeds: IVI Pr ofile (Definition of C SM) .23 Bibliography .29 ISO 2016 All
20、 rights reserved iii Contents PagePD CEN ISO/TS 17426:2016ISO/TS 17426:2016(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 I
21、SO 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
22、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 crite
23、ria 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
24、 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
25、 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 ISOs adherence to the WTO principles in the Technica
26、l Barriers 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 2016 All rights reservedPD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E) Introduction Traditional fixed speed limits have
27、, in general, been set as the maximum mandatory speed that a vehicle or a category of vehicles can travel at. Such speed limits are defined by the competent authority. Some national authorities moderate mandatory speed limits when road or environment conditions change. When road or environmental con
28、ditions change, the decision as to the most appropriate speed a driver or rider should travel is, in general, left up to the individual vehicle driver. With the advent of Cooperative Intelligent Transport Systems (ITS), it has become possible to provide better guidance to vehicle drivers on what spe
29、ed they should travel at when road, traffic, or environmental conditions are less than ideal. This function is known as Contextual Speed Information Service. Delivering Contextual Speed information to road users can improve road safety, support traffic management, and reduce greenhouse gas emissions
30、. In a Cooperative ITS environment, Contextual Speeds are context-dependent (e.g. changed due to weather conditions), as well as time-specific and road section-specific speeds. Subject to local regulations, they can be mandatory speed limits or advisory speeds. All Cooperative ITS Services follow th
31、e same abstract structure of detection (of an event) including pre- processing of the detected content, execution of the Service algorithm (processing of detected content) and presentation or utilization of the Service result. Figure 1 summarizes and further illustrates this process. Detection Conte
32、nt processing Info service generation Info service presentation Figure 1 General Cooperative ITS Service process (from ISO/TS 17427:2014, Figure A.6) Based on this abstract process description, for any Cooperative ITS Service, a similar process description applies to the Contextual Speed Information
33、 Service. Every single step in the process chain can be executed by different actors or stakeholders. Execution of process elements by different stakeholders results in a large number of possible potential scenarios. Additionally, the involvement of stakeholders can be distinguished by spatial geogr
34、aphy. Assuming that there are two main stakeholder groups in Cooperative ITS, namely the Infrastructure and the Vehicle, multiple combinations are possible, as every step can be delivered by a different stakeholder group (see Figure 2). Figure 2 Possible scenarios Simple ISO 2016 All rights reserved
35、 vPD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E) The scenarios address different combinations; the basis for every scenario is one specific combination. This Technical Specification addresses the scenario where detection, content pre-processing, and information service generation is the responsibility
36、 of the infrastructure stakeholder. The direct presentation of Contextual Speed information on the driver interface of the vehicle is out of the scope of this Technical Specification. This Technical Specification therefore addresses only part of the whole process (Scenario 7). Within the context of
37、Scenario 7, this Technical Specification addresses Use Case 1 “Provision of mandatory speed limit information into vehicle for driver awareness purposes” and Use Case 2 “Provision of advisory speed information into vehicle for driver awareness purposes”. This does not preclude other Use Cases or dep
38、loyment models in later Technical Specification(s).vi ISO 2016 All rights reservedPD CEN ISO/TS 17426:2016TECHNICAL SPECIFICATION ISO/TS 17426:2016(E) Intelligent transport systems Cooperative systems Contextual speeds 1 Scope This Technical Specification specifies the Contextual Speed Information S
39、ervice, namely the general requirements regarding the provision of the Contextual Speed Information Service, the data flow supporting the service, and the presentation of the service result, specifies the requirements to be fulfilled by the Contextual Speed Information Service, specifies the ITS Sta
40、tion (ITS-S) application processes of the vehicle ITS station, roadside ITS station, central ITS station, and personal ITS station that are required to instantiate the Contextual Speed Information Service, specifies sets of communication requirements and objectives (profiles) using the methods defin
41、ed in ISO 17423 to select the level of performance (best effort or real-time, etc.), confidence and security (authentication, encryption, etc.) for each Contextual Speed Information Service communication flow between ITS stations, selects relevant functions and procedures provided by the ITS station
42、 facilities layer (see ISO 17429), and specifies messages, messages sets structure, content, and syntax to be used by the Contextual Speed Information Service. This Technical Specification considers the scenario for the transmission of Contextual Speed information from the infrastructure/roadside to
43、 the vehicle, for onward presentation to the vehicles driver. This scenario foresees that the calculation of Contextual Speed information is performed on the Infrastructure side, not within the vehicle. Mandatory speed limits or advisory speed recommendations are output of the Contextual Speed Infor
44、mation Service which (in the scenario considered in this Technical Specification) is run by the Road Operator in its Traffic Control Centre or comparable infrastructure (e.g. Roadside ITS Station). To transfer this information to the vehicle (and therefore the driver) over the air (wireless communic
45、ation), defined messages are required. These messages are specified in this Technical Specification. When Contextual Speed information arrives in the vehicle, further pre-processing might be necessary before the Contextual Speed information, and, if available, additional explanations on speed limits
46、 or recommendations, can be presented to the driver. This Technical Specification specifies the requirements that need to be fulfilled when processing the messages. It does not specify how the vehicle handles the incoming messages. The production of information supporting this application, its quali
47、fication and its relevance are out of the scope of this Technical Specification. This Technical Specification addresses Use Case 1 “Provision of mandatory speed limit information into vehicle for driver awareness purposes” and Use Case 2 “Provision of advisory speed information into vehicle for driv
48、er awareness purposes”. ISO 2016 All rights reserved 1PD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E) 2 Conformance To claim conformance to this Technical Specification, all mandatory requirements shall be fulfilled by the implementation under test. NOTE 1 Conformance testing may be different for diffe
49、rent roles/actors. This Technical Specification identifies the requirements for a number of Protocol Implementation Conformance Statements (PICS) proforma, allowing to claim conformance to defined subsets of ISO/TS 17426 requirements. NOTE 2 This Technical Specification adopts the ISO/IEC 9646-7 approach for conformance testing specifications (i.e. development of PICS proforma, TSS&TP, ATS, and PIXIT). 3 Normative references The following documents, in whole or in part, are normatively referenced in this document and are
