1、BSI Standards PublicationPD CEN ISO/TS 17426:2016Intelligent transport systems Cooperative systems Contextual speeds (ISO/TS17426:2016)PD CEN ISO/TS 17426:2016 PUBLISHED DOCUMENTNational forewordThis Published Document is the UK implementation of CEN ISO/TS17426:2016.The UK participation in its prep
2、aration was entrusted to TechnicalCommittee EPL/278, Intelligent transport systems.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its co
3、rrectapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 83283 3ICS 03.220.01; 35.240.60Compliance with a British Standard cannot confer immunity fromlegal obligations.This Published Document was published under the authority of theStandards Poli
4、cy and Strategy Committee on 31 March 2016.Amendments issued since publicationDate Text affectedTECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN ISO/TS 17426 March 2016 ICS 03.220.01; 35.240.60 English Version Intelligent transport systems - Cooperative systems - Contextua
5、l 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) was approved by CEN on
6、 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 European Standard. CEN membe
7、rs 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 final decision about the p
8、ossible 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, Ireland, Italy, Latvia, L
9、ithuania, 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 Centre: Avenue Marnix 17
10、, 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 17426:2016CEN ISO/TS 17426:2016 (E) 3 European foreword This document (CEN ISO/TS 17426:2016) has been prepared by Technical C
11、ommittee 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 the subject of patent righ
12、ts. 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 Regulations, the national sta
13、ndards 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, Ireland, Italy, Latvia, Lithua
14、nia, 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. PD CEN ISO/TS 17426:2016
15、ISO/TS 17426:2016(E)Foreword ivIntroduction v1 Scope . 12 Conformance . 23 Normative references 24 Terms and definitions . 25 Symbols and abbreviated terms . 36 Contextual Speeds: Architecture 47 Contextual speeds: Use cases . 57.1 General . 57.2 Use case 1: Provision of mandatory speed limit inform
16、ation into vehicle for driver awareness purposes 67.3 Use case 2 - Provision of advisory speed information into vehicle for driver awareness purposes 108 Contextual speeds: Roles and responsibilities .148.1 Scenarios for contextual speeds 148.2 System operation roles in scenario 7 158.3 Possible act
17、ors in the Contextual Speed Information Service .159 Contextual speeds: Characteristics.1610 Contextual speeds: General service requirements 1611 Contextual speeds: Communication requirements .1711.1 General 1711.2 General communication requirements . 1811.2.1 General. 1811.2.2 ITS-S application pro
18、cesses of the Contextual Speed Application .1811.2.3 Flow types of the Contextual Speed Application .1811.2.4 Flow Type 1 of the Contextual Speed Application .1911.2.5 Flow Type 2 of the Contextual Speed Application .1911.2.6 Flow Type 3 of the Contextual Speed Application .2011.2.7 Sources and Sink
19、 ITS stations of the Flow Types 2111.2.8 Other general communication requirements 2111.3 Application specific data element requirements 21Annex A (normative) Contextual speeds: IVI Profile (Definition of CSM) .23Bibliography .29 ISO 2016 All rights reserved iiiContents PagePD CEN ISO/TS 17426:2016IS
20、O/TS 17426:2016(E)ForewordISO (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 subj
21、ect 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 (IE
22、C) 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 n
23、oted. 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 identifyin
24、g 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 o
25、f 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 Technical Barriers to Trade (TBT) see the following URL: Foreword - Supple
26、mentary 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)IntroductionTraditional fixed speed limits have, in general, been set as the maximum mandatory speed that a vehicle
27、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 conditions change, the decision as to the most appropriate speed a drive
28、r 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 speed they should travel at when road, traffic, or environmental conditi
29、ons 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.In a Cooperative ITS environment, Contextual Speeds are context-depen
30、dent (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 the same abstract structure of detection (of an event) including pre-proce
31、ssing 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.DetectionContent processingInfo service generationInfo service presentationFigure 1 Gener
32、al 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 Service. Every single step in the process chain can be executed by different a
33、ctors 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 geography.Assuming that there are two main stakeholder groups in Cooperative ITS, na
34、mely 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 vPD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E)The scenarios address different com
35、binations; 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 of the infrastructure stakeholder. The direct presentation of Contextual Speed in
36、formation 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 Scenario 7, this Technical Specification addresses Use Case 1 “Provision of mandato
37、ry 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 deployment models in later Technical Specification(s).vi ISO 2016 All rights reservedPD
38、 CEN ISO/TS 17426:2016TECHNICAL SPECIFICATION ISO/TS 17426:2016(E)Intelligent transport systems Cooperative systems Contextual speeds1 ScopeThis Technical Specification specifies the Contextual Speed Information Service, namely the general requirements regarding the provision of the Contextual Speed
39、 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 Station (ITS-S) application processes of the vehicle ITS station, roadside ITS station, ce
40、ntral 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 defined in ISO 17423 to select the level of performance (best effort or real-time, etc.), co
41、nfidence 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 facilities layer (see ISO 17429), and specifies messages, messages sets structure, con
42、tent, 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 the vehicle, for onward presentation to the vehicles driver. This scenario foresees tha
43、t 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 Information Service which (in the scenario considered in this Technical Specification) is run
44、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 communication), defined messages are required. These messages are specified in this Technical Spe
45、cification.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 or recommendations, can be presented to the driver. This Technical Specification specifie
46、s 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 qualification and its relevance are out of the scope of this Technical Specification.This Techni
47、cal 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”. ISO 2016 All rights reserved 1PD CEN ISO/TS 17426:2016ISO/TS 17426:2
48、016(E)2 ConformanceTo 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 different roles/actors. This Technical Specification identifies the requirements for a number of Pro
49、tocol 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 Use case 2: Provision of advisory speed information into vehicle for driver awareness purposes. ISO 2016 All rights reserved 5PD CEN ISO/TS 17426:2016ISO/TS 17426:2016(E)Vehicle ITS stationRoad side ITS stationFigure 4 Display of Contextual
