Service Interface for Real Time Information

Service Interface for Real Time Information

The Service Interface for Real Time Information or SIRI is an XML protocol to allow distributed computers to exchange real time information about public transport services and vehicles.

The protocol is a CEN technical specification, developed with initial participation by France, Germany (Verband Deutscher Verkehrsunternehmen), Scandinavia, and the UK (RTIG)

SIRI is based on the Transmodel abstract model for public transport information, and comprises a general purpose model, and an XML schema for public transport information.

A SIRI White Paper is available for further information on the protocol []


SIRI allows pairs of server computers to exchange structured real-time information about schedules, vehicles, and connections, together with general informational messages related to the operation of the services. The information can be used for many different purposes, for example:
*To provide real time-departure from stop information for display on stops, internet and mobile delivery systems;
*To provide real-time progress information about individual vehicles;
*To manage the movement of buses roaming between areas covered by different servers;
*To manage the synchronisation of guaranteed connections between fetcher and feeder services;
*To exchange planned and real-time timetable updates;
*To distribute status messages about the operation of the services;
*To provide performance information to operational history and other management systems.

Current version

Version 1.0 is currently available [] .

SIRI uses a systematic versioning scheme.

SIRI includes a number of optional capabilities. Different countries may specify a country profile of the subset of SIRI capabilities that they wish to adopt.

Example of sites using SIRI

Different SIRI is used in a number of UK & European sites

* Leicester Travel: Bus real-time from SIRI-SM
* [Transport for London] Incidents from SIRI-GMS & Real-time data from LBS River

See also

* Identification of Fixed Objects In Public Transport (IFOPT)
*Intermodal Journey Planner
*Transport Information Standards
* Transport standards organisations


* Official SIRI Website
* RTIG Website
* VDV Website
* CEN Website

Wikimedia Foundation. 2010.

Look at other dictionaries:

  • Service Interface for Real Time Information — Das Service Interface for Real Time Information oder SIRI ist ein XML Protokoll zum Austausch von Echtzeitdaten im Bereich des ÖPNV. Ursprünglich wurde SIRI von Unternehmen und Verbänden des ÖPNV aus Frankreich, Deutschland (VDV), Skandinavien… …   Deutsch Wikipedia

  • Real Time Information Group — RTIG or The Real Time Information Group was established in 2000 to provide a focus for those involved in the implementation and technical development of UK bus real time information systems. RTIG, a subscription group, has members from UK local… …   Wikipedia

  • Data Access in Real Time — (DART) is a Real time operating system used by EMC Celerra. It is a modified UNIX Kernel with additional functionality. DART is an embedded, real time, operating system comprising a modified UNIX kernel and dedicated file server software that… …   Wikipedia

  • Service-oriented architecture — (SOA) is a method for systems development and integration where functionality is grouped around business processes and packaged as interoperable services . SOA also describes IT infrastructure which allows different applications to exchange data… …   Wikipedia

  • Service Oriented Programming — (SOP) is a programming paradigm that uses services as the unit of computer work, to design and implement integrated business applications and mission critical software programs. Services can represent steps of business processes and thus one of… …   Wikipedia

  • Service delivery platform — The term Service Delivery Platform (SDP) usually refers to a set of components that provide a service’s delivery architecture (such as service creation, session control protocols) for a type of service. There is no standard definition of SDP in… …   Wikipedia

  • information processing — Acquisition, recording, organization, retrieval, display, and dissemination of information. Today the term usually refers to computer based operations. Information processing consists of locating and capturing information, using software to… …   Universalium

  • Information Technology Infrastructure Library — The Information Technology Infrastructure Library (I), is a set of good practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business. In its current form (known as ITILv3 and ITIL 2011 edition), ITIL… …   Wikipedia

  • Service (economics) — A service is the non material equivalent of a good. A service provision is an economic activity that does not result in ownership, and this is what differentiates it from providing physical goods. It is claimed to be a process that creates… …   Wikipedia

  • Interface neuronale directe — Pour les articles homonymes, voir IND et BCI. Schéma d une interface neuronale directe Une interface neuronale directe aussi appelée IND ou BCI …   Wikipédia en Français