• EN 15531-1:2015

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    Public transport - Service interface for real-time information relating to public transport operations - Part 1: Context and framework

    Available format(s): 

    Withdrawn date:  29-02-2016

    Language(s): 

    Published date:  26-08-2015

    Publisher:  Comite Europeen de Normalisation

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    Table of Contents - (Show below) - (Hide below)

    European foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols and abbreviations
    5 Types of reference data used in SIRI
    6 Notation
    Annex A (informative) - Checklist for Implementing SIRI
    Annex B (informative) - Business Context
    Annex C (informative) - Background and Mapping of Some
            Current Implementations to SIRI
    Bibliography

    Abstract - (Show below) - (Hide below)

    1.1Interfaces specified by this standard

    1.1.1Business context

    Real-time information may be exchanged between a number of different organizations, or between different systems belonging to the same organization. Key interfaces include the following:

    -Between public transport vehicle control centres – generally, for fleet and network management.

    -Between a control centre and an information provision system – generally, to provide operational information for presentation to the public.

    -Between information provision systems – generally, sharing information to ensure that publicly available information is complete and comprehensive.

    -Between information provision systems – and data aggregation systems that collect and integrate data from many different sources and different types of data supplier and then distribute it onwards.

    -Between information provision systems and passenger information devices such as mobile phones, web browsers, etc.

    Annex B describes the business context for SIRI in more detail.

    SIRI is intended for wide scale, distributed deployment by a wide variety of installations. In such circumstances it is often not practical to upgrade all the systems at the same time. SIRI therefore includes a formal versioning system that allows for the concurrent operation of different levels at the same time and a disciplined upgrade process.

    In this general framework, SIRI defines a specific set of concrete functional services. The services separate the communication protocols from the message content (‘functional services’). This allows the same functional content to be exchanged using different transport mechanisms, and different patterns of exchange. Figure 1 below shows this diagrammatically.

    1.1.2SIRI communications

    SIRI provides a coherent set of functional services for exchanging data for different aspects of PT operation. A common data model, based on Transmodel 5.1, is used across all services.

    A communication layer defines common procedures for the requesting and exchanging of data. Within SIRI, the same general communication protocols are used for all the different concrete functional interfaces, and specify a common infrastructure for message referencing, error handling, reset behaviour and so forth. The communications layer is defined in Part 2 of the SIRI document set.

    To allow the most efficient use to be made of bandwidth and processing capacity, the SIRI communications architecture supports several different patterns of interaction. SIRI supports both request/response and publish/subscribe protocols between servers, allowing applications both to pull or to push data.

    The SIRI publish/subscribe pattern of interaction follows the paradigm described in the W3C candidate standard ‘Publish-Subscribe Notification for Web Services (WS-PubSub)’. SIRI uses the same separation of concerns, and a similar terminology for Publish/Subscribe concepts as is used in WS-PubSub.

    For the delivery of data in response to both requests and subscriptions, SIRI supports two common patterns of message exchange as realised in existent national systems:

    -one-step ‘direct’ delivery: allowing the simple rapid delivery of data;

    -two-step ‘fetched’ delivery: allowing a more optimised use of limited resources.

    1.1.3SIRI functional services

    SIRI provides specific protocols for the following functional services, defined in Part 3 of the SIRI document set:

    -Production Timetable (PT) Service: to send daily information on the operational timetable and associated vehicle running information.

    -Estimated Timetable (ET) Service: to send real-time information on timetable, including changes based on the production service and on actual running conditions.

    -Stop Timetable (ST) Service: to provide a stop-centric view of timetabled vehicle arrivals and departures at a designated stop.

    -Stop Monitoring (SM) Service: to send real-time arrival & departure information relating to a specific stop.

    General Product Information - (Show below) - (Hide below)

    Committee CEN/TC 278
    Development Note Supersedes CEN/TS 15531-1 & PREN 15531-1. (09/2015)
    Document Type Standard
    Publisher Comite Europeen de Normalisation
    Status Withdrawn
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    CEN/TR 17143 : 2017 INTELLIGENT TRANSPORT SYSTEMS - STANDARDS AND ACTIONS NECESSARY TO ENABLE URBAN INFRASTRUCTURE COORDINATION TO SUPPORT URBAN-ITS
    BS EN 12896-3:2016 Public transport. Reference data model Timing information and vehicle scheduling
    PREN 12896-2 : DRAFT 2015 ROAD TRANSPORT AND TRAFFIC TELEMATICS - PUBLIC TRANSPORT REFERENCE DATA MODEL - PART 2: PUBLIC TRANSPORT NETWORK
    CEN/TS 16614-3 : 2016 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 3: PUBLIC TRANSPORT FARES EXCHANGE FORMAT
    CEN/TS 15531-5:2016 Public transport ‐ Service interface for real‐time information relating to public transport operations ‐ Part 5: Functional service interfaces situation exchange: Situation Exchange
    EN 12896-3:2016 (edition 2) Public transport - Reference data model - Part 3: Timing information and vehicle scheduling
    EN 15531-3:2015 Public transport - Service interface for real-time information relating to public transport operations - Part 3: Functional service interfaces
    EN 12896-1:2016 (edition 2) Public transport - Reference data model - Part 1: Common concepts
    CEN/TS 17118 : 2017 INTELLIGENT TRANSPORT SYSTEMS - PUBLIC TRANSPORT - OPEN API FOR DISTRIBUTED JOURNEY PLANNING
    BS PD CEN/TR 17143 : 2017 INTELLIGENT TRANSPORT SYSTEMS - STANDARDS AND ACTIONS NECESSARY TO ENABLE URBAN INFRASTRUCTURE COORDINATION TO SUPPORT URBAN-ITS
    BS EN 15531-2:2015 Public transport. Service interface for real-time information relating to public transport operations Communications
    I.S. EN 12896-2:2016 PUBLIC TRANSPORT - REFERENCE DATA MODEL - PART 2: PUBLIC TRANSPORT NETWORK
    BS EN 12896-2 : 2016 PUBLIC TRANSPORT - REFERENCE DATA MODEL - PART 2: PUBLIC TRANSPORT NETWORK
    DIN CEN/TS 16614-3;DIN SPEC 4623:2016-08 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 3: PUBLIC TRANSPORT FARES EXCHANGE FORMAT
    S.R. CEN/TS 17118:2017 INTELLIGENT TRANSPORT SYSTEMS - PUBLIC TRANSPORT - OPEN API FOR DISTRIBUTED JOURNEY PLANNING
    15/30315135 DC : DRAFT APR 2015 BS EN 12896-2 - ROAD TRANSPORT AND TRAFFIC TELEMATICS - PUBLIC TRANSPORT REFERENCE DATA MODEL - PART 2: PUBLIC TRANSPORT NETWORK
    DIN CEN/TS 16614-3 : 2016 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 3: PUBLIC TRANSPORT FARES EXCHANGE FORMAT
    BS EN 15531-3:2015 Public transport. Service interface for real-time information relating to public transport operations Functional service interfaces
    PD CEN/TS 15531-5:2016 Public transport. Service interface for real-time information relating to public transport operations Functional service interfaces situation exchange: Situation Exchange
    BS PD CEN/TS 17118 : 2017 INTELLIGENT TRANSPORT SYSTEMS - PUBLIC TRANSPORT - OPEN API FOR DISTRIBUTED JOURNEY PLANNING
    15/30315138 DC : DRAFT APR 2015 BS EN 12896-3 - INTELLIGENT TRANSPORT SYSTEMS - REFERENCE DATA MODEL - PART 3: TIMING INFORMATION AND VEHICLE SCHEDULING
    S.R. CEN/TS 15531-5:2016 PUBLIC TRANSPORT - SERVICE INTERFACE FOR REALTIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 5: FUNCTIONAL SERVICE INTERFACES SITUATION EXCHANGE: SITUATION EXCHANGE
    I.S. EN 15531-3:2015 PUBLIC TRANSPORT - SERVICE INTERFACE FOR REAL-TIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 3: FUNCTIONAL SERVICE INTERFACES
    I.S. EN 12896-1:2016 PUBLIC TRANSPORT - REFERENCE DATA MODEL - PART 1: COMMON CONCEPTS
    S.R. CEN/TS 16614-3:2016 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 3: PUBLIC TRANSPORT FARES EXCHANGE FORMAT
    BS EN 12896-1:2016 Public transport. Reference data model Common concepts
    PREN 12896-3 : DRAFT 2015 INTELLIGENT TRANSPORT SYSTEMS - REFERENCE DATA MODEL - PART 3: TIMING INFORMATION AND VEHICLE SCHEDULING
    13/30285301 DC : 0 BS EN 15531-3 - PUBLIC TRANSPORT - SERVICE INTERFACE FOR REAL-TIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 3: FUNCTIONAL SERVICE INTERFACES
    DIN CEN/TS 15531-5;DIN SPEC 91254:2016-07 Public transport - Service interface for real-time information relating to public transport operations - Part 5: Functional service interfaces situation exchange: Situation Exchange; English version CEN/TS 15531-5:2016
    13/30285298 DC : 0 BS EN 15531-2 - PUBLIC TRANSPORT - SERVICE INTERFACE FOR REAL-TIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 2: COMMUNICATIONS
    BS PD CEN/TS 16614-3 : 2016 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 3: PUBLIC TRANSPORT FARES EXCHANGE FORMAT
    I.S. EN 15531-2:2015 PUBLIC TRANSPORT - SERVICE INTERFACE FOR REAL-TIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 2: COMMUNICATIONS
    I.S. EN 12896-3:2016 PUBLIC TRANSPORT - REFERENCE DATA MODEL - PART 3: TIMING INFORMATION AND VEHICLE SCHEDULING
    S.R. CEN/TR 17143:2017 INTELLIGENT TRANSPORT SYSTEMS - STANDARDS AND ACTIONS NECESSARY TO ENABLE URBAN INFRASTRUCTURE COORDINATION TO SUPPORT URBAN-ITS
    EN 15531-2 : 2015 PUBLIC TRANSPORT - SERVICE INTERFACE FOR REAL-TIME INFORMATION RELATING TO PUBLIC TRANSPORT OPERATIONS - PART 2: COMMUNICATIONS

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 639-1:2002 Codes for the representation of names of languages Part 1: Alpha-2 code
    EN 28701 : 2012 INTELLIGENT TRANSPORT SYSTEMS - PUBLIC TRANSPORT - IDENTIFICATION OF FIXED OBJECTS IN PUBLIC TRANSPORT (IFOPT)
    ISO 639:1988 Code for the representation of names of languages
    ISO/IEC 8859-15:1999 Information technology 8-bit single-byte coded graphic character sets Part 15: Latin alphabet No. 9
    CEN/TS 16614-1 : 2014 PUBLIC TRANSPORT - NETWORK AND TIMETABLE EXCHANGE (NETEX) - PART 1: PUBLIC TRANSPORT NETWORK TOPOLOGY EXCHANGE FORMAT
    ISO/IEC 19501:2005 Information technology Open Distributed Processing Unified Modeling Language (UML) Version 1.4.2
    ISO 8601:2004 Data elements and interchange formats Information interchange Representation of dates and times
    ENV 13998 : DRAFT 2001 ROAD TRANSPORT AND TRAFFIC TELEMATICS - PUBLIC TRANSPORT - NON-INTERACTIVE DYNAMIC PASSENGER INFORMATION ON GROUND
    EN 12896 : 2006 ROAD TRANSPORT AND TRAFFIC TELEMATICS - PUBLIC TRANSPORT - REFERENCE DATA MODEL
    SAE J 1939/71 : 2016 VEHICLE APPLICATION LAYER
    CEN/TS 13149-6 : 2005 PUBLIC TRANSPORT - ROAD VEHICLE SCHEDULING AND CONTROL SYSTEMS - PART 6: CAN MESSAGE CONTENT
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