1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationDD CEN/TS 15531-5:2011Public transport Service interface for real-time information relating to public transport operationsPart 5: Functional service interfaces Situation Exchange
2、Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DD CEN/TS 15531-5:2011 DRAFT FOR DEVELOPMENTNational forewordThis Draft for Development is the UK implementation of CEN/TS 15531-5
3、:2011.This publication is not to be regarded as a British Standard.It is being issued in the Draft for Development series of publications and is of a provisional nature. It should be applied on this provisional basis, so that information and experience of its practical application can be obtained.Co
4、mments arising from the use of this Draft for Development are requested so that UK experience can be reported to the international organization responsible for its conversion to an international standard. A review of this publication will be initiated not later than 3 years after its publication by
5、the international organization so that a decision can be taken on its status. Notification of the start of the review period will be made in an announcement in the appropriate issue of Update Standards.According to the replies received by the end of the review period, the responsible BSI Committee w
6、ill decide whether to support the conversion into an international Standard, to extend the life of the T e c h n i c a l S p e c i f i c a t i o n o r t o w i t h d r a w i t . C o m m e n t s s h o u l d b e s e n t to the Secretary of the responsible BSI Technical Committee at British Standards Ho
7、use, 389 Chiswick High Road, London W4 4AL.The UK participation in its preparation was entrusted to T e c h n i c a l C o m m i t t e e E P L / 2 7 8 , R o a d t r a n s p o r t i n f o r m a t i c s .A list of organizations represented on this committee can be obtained on request to its secretary.T
8、his publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2011ISBN 978 0 580 71985 1ICS 35.240.60Compliance with a British Standard cannot confer immunity from legal obligations.This Draft for Development was publis
9、hed under the authority of the Standards Policy and Strategy Committee on 31 August 2011.Amendments issued since publicationDate T e x t a f f e c t e dCopyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without
10、 license from IHS-,-,-DD CEN/TS 15531-5:2011TECHNICAL SPECIFICATION SPCIFICATION TECHNIQUE TECHNISCHE SPEZIFIKATION CEN/TS 15531-5 July 2011 ICS English Version Public transport - Service interface for real-time information relating to public transport operations - Part 5: Functional service interfa
11、ces - Situation Exchange Service dchanges de donnes temps rel pour le Transport en Commun - Partie 5: interfaces de service fonctionnel - Echanges de perturbation structurs (causes et consquences dtailles) ffentlicher Verkehr - Diensteschnittstelle fr den Echtzeitaustausch von Betriebsinformationen
12、des PNV (SIRI) - Teil 5: Funktionelle Serviceschnittstelle: Situativer Austausch This Technical Specification (CEN/TS) was approved by CEN on 19 March 2011 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
13、be requested to submit their comments, particularly on the question whether the CEN/TS can be converted into a European 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 appropria
14、te form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS) until the final 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 Repub
15、lic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE
16、NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. CEN/TS 15531-5:2011: ECopyright European Committee for Standardization Provided by
17、IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DD CEN/TS 15531-5:2011CEN/TS 15531-5:2011 (E) 2 Contents Page Foreword . 4 Introduction 6 1 Scope . 7 2 Normative references . 7 3 Terms and definitions. 8 4 Symbols and abbreviations . 12 5
18、Situations as Software Entities . 12 5.1 General . 12 5.2 Structured Situations . 13 5.3 Distributed Situation processing 14 5.3.1 Identity and Write-Only Updates . 14 5.3.2 Currency and the Situation Life Cycle 15 5.3.3 Representational model for Situation Elements 16 5.3.4 Update chains Causal cha
19、ins . 17 5.3.5 Cross-referencing Situations Causal chains 18 5.3.6 Branching and distributed updates 18 5.3.7 Archiving . 20 5.4 Summary of Situation Management 20 5.4.1 General . 20 5.4.2 Situation Identity . 20 5.4.3 Situation Life Cycle . 21 5.4.4 Situation Update Content . 21 5.4.5 Example of id
20、entifier allocation . 21 5.4.6 Date time stamps as identifiers . 22 5.5 Interoperability of Situation management systems 22 5.5.1 General . 22 5.5.2 Datex2 Interoperability . 23 5.5.3 TPEG Interoperability . 23 5.5.4 Communications Bandwidth . 24 6 The Situation Model 24 6.1 General . 24 6.2 Represe
21、nting a PT Situation in SIRI-SX 25 6.2.1 Summary of PT Situation model . 25 6.2.2 PT Situation Element Body 26 6.2.3 PT Situation Body Details 27 6.2.4 PT Situation Reason . 29 6.2.5 Situation Consequence 31 6.2.6 The PT AffectsScope 33 6.3 Representing a Road Situation in SIRI-SX . 39 6.3.1 Summary
22、 of Road Situation model . 39 6.3.2 Road Situation Element Body . 40 6.3.3 Common Accessibility . 41 6.3.4 Publishing Actions . 42 6.3.5 Common Types . 44 7 Situation Exchange Service SX 50 7.1 Purpose 50 7.2 Description 50 7.3 Reference Data 50 7.4 Capability and Permission Matrices . 50 Copyright
23、European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DD CEN/TS 15531-5:2011CEN/TS 15531-5:2011 (E) 3 7.4.1 Capability Matrix 50 7.4.2 Permission Matrix 52 7.5 UML Diagrammatic Representation .
24、53 7.5.1 General . 53 7.5.2 UML Detailed Diagram of SituationExchangeRequest 54 7.5.3 UML Diagram of SituationExchangeDelivery - Summary 55 7.5.4 UML Diagram of SituationExchangeDelivery - Detail 56 7.5.5 UML Diagram of SituationContext . 57 7.6 SituationExchangeRequest 58 7.6.1 SituationExchangeReq
25、uest Definition 58 7.6.2 SituationStatusFilter Definition 60 7.6.3 SituationNetworkFilter Definition. 60 7.6.4 SituationStopPlaceFilter Definition . 61 7.6.5 SituationJourneyFilter Definition . 61 7.6.6 SituationPlaceFilter Definition . 61 7.6.7 SituationExchangeRequest Example 62 7.7 SituationExcha
26、ngeSubscriptionRequest 62 7.7.1 SituationExchangeSubscriptionRequest Definition 62 7.7.2 SituationExchangeSubscriptionRequest Example 63 7.8 SituationExchangeDelivery 63 7.8.1 ServiceDelivery with a SituationExchangeDelivery . 63 7.8.2 SituationExchangeDelivery Element . 64 7.8.3 SituationContext El
27、ement . 64 7.8.4 SituationNetworkContext Element. 65 7.8.5 PtSituationElement 65 7.8.6 RoadSituationElement 104 8 SituationExchangeDelivery Examples - SituationExchangeDelivery PT Examples 107 Annex A (normative) Notation . 109 Annex B (normative) Comparison of Terms 114 Annex C (informative) Use Ca
28、ses for Situation Exchange . 117 Bibliography 123 Copyright European Committee for Standardization Provided by IHS under license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DD CEN/TS 15531-5:2011CEN/TS 15531-5:2011 (E) 4 Foreword This document (CEN/TS 1
29、5531-5:2011) has been prepared by 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 rights. CEN and/or CENELEC shall not be held
30、responsible for identifying any or all such patent rights. This document describes the SIRI Situation Exchange service, one of a modular set of services for the exchange of Real-time information. The Situation Exchange service (SIRI-SX) is concerned with the exchange of planned events and unplanned
31、incident data among systems, including incident capture, real-time management and dissemination systems. The SIRI Situation Exchange service (SIRI-SX) is an additional functional service based on the European Technical Specification known as “SIRI“ Service Interface for Real-time Information. SIRI p
32、rovides a framework for specifying communications and data exchange protocols for organisations wishing to exchange Real-time Information (RTI) relating to public transport operations. The specification for the base SIRI framework on which SIRI-SX is built is presented in three parts: a) context and
33、 framework, including background, scope and role, normative references, terms and definitions, symbols and abbreviations, business context and use cases (SIRI Part 1: CEN/TS 15531-1); b) the mechanisms to be adopted for data exchange communications links (SIRI Part 2: CEN/TS 15531-2); c) data struct
34、ures for a series of individual application interface modules (SIRI Part 3: CEN/TS 15531-3): 1) Production Timetable (SIRI-PT); 2) Estimated Timetable (SIRI-ET); 3) Stop Timetable (SIRI-ST); 4) Stop Monitoring (SIRI-SM); 5) Vehicle Monitoring (SIRI-VM); 6) Connection Timetable (SIRI-CT); 7) Connecti
35、on Monitoring (SIRI-CM); 8) General Message (SIRI-GM). Additional documents are used for additional functional services, to date these are: Facilities Management (SIRI-FM) service is used to exchange information on the current status of facilities such as lifts, escalators or ticketing machines. It
36、provides a short description of the facility itself, expresses any change to its operational status and specifically the accessibility status for the disabled or those with special needspeople. It provides all the current relevant information relating to all facilities fulfilling a set of selection
37、criteria (Part 4: prCEN/TS 15531-4). Situation Exchange (SIRI-SX): this document. The SIRI Situation rather than as monolithic proprietary systems from a single supplier. Interfaces also allow the systematic automated testing of each functional module, vital for managing the complexity of increasing
38、 large and dynamic systems. Furthermore, with a well defined, version interface, individual functional modules can be replaced or evolved, without unexpected breakages of obscurely dependent function. The SIRI framework is a European Technical Specification that provides a specification for a number
39、 of functional interfaces that allow public transport data of specific types to be exchanged readily using structured interfaces. Furthermore, this European Technical Specification specifies an additional SIRI functional service to exchange incident and event information about disruptions to public
40、transport between servers containing real-time public transport vehicle or journey time data. These include the control centres of transport operators as well as information systems that deliver passenger travel information services. Copyright European Committee for Standardization Provided by IHS u
41、nder license with CENNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DD CEN/TS 15531-5:2011CEN/TS 15531-5:2011 (E) 7 1 Scope The SIRI Situation Exchange service (SIRI-SX) allows the efficient exchange of data about situations caused by planned and unplanned inciden
42、ts and events and is intended to support the use cases identified in Annex C. Situations are actual or potential perturbations to normal operation of a transport network. The SIRI-SX service uses the common SIRI communication framework and services which are described in CEN/TS 15531-1 and not repea
43、ted in this document. The Situation Exchange service has a rich Situation model, allowing a structured description of all aspects of multimodal travel Situations, including cause, scope, effect and rules for distribution to an audience. The structured values enabling computer based distribution thro
44、ugh a wide variety of channels, and the presentation of data in different formats for different device and different audiences. The Situation Exchange Service allows the exchange of incident and event information between, amongst others: Control centres; Operations staff; Public information systems;
45、 Alert systems and personalised alert systems; UTMC systems; Journey planners; AVMS (Automatic Vehicle Management Systems). SIR-SX uses a network model based on the CEN Transmodel conceptual model for public transport networks, schedules and operations, along with the CEN Identification of Fixed Obj
46、ects in Public Transport (IFOPT) model for describing physical transport interchanges. The Situation Exchange service is envisaged as a back office capture and exchange service that will feed other public facing travel information dissemination systems, in particular those using the TPEG format. Tra
47、nsport Protocol Expert Group (TPEG) is a European Broadcasting Union fostered standard for broadcasting travel data over Digital Assisted Broadcasting (DAB) radio and other channels. To this end, the SIRI-SX situation classification model has been harmonised as far as possible with that of TPEG and
48、DATEX2 so that full interoperability can be achieved. Uses of structured elements from TPEG, for which translations already exist in most European languages, also facilitates human readability in different national languages. Maintaining and improving a harmonisation with TPEG will be a continuing o
49、bjective. In addition to the TPEG exchangeable content, SIRI-SX messages contain additional structured information which allows them to be processed in additional ways. Situation and computer systems and applications are typically distributed, that is information will be captured on one system and exchanged with others for dissemination and further processing. This means that a message
