SIRI

SIRI overview

SIRI was established as European standard in October 2006. It is a CEN (Comité Européen de Normalisation) and Technical Standard that specifies a European interface standard for exchanging information about the planned, current or projected performance of real-time public transport operations between different computer systems.

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.

To find out more about the SIRI data model, please visit the Transmodel page and SIRI page.

SIRI National and EU minimum profiles inventory

National profiles are specified to cover the national needs. To help implementation, DATA4PT is also in process of delivering SIRI EU minimum profile, in collaboration with relevant CEN group. DATA4PT has prepared a table with the currently available SIRI national profiles, including an overview of data categories that are currently covered. For data categories relevant to static data check the NeTEx Profiles Inventory.

SIRI Profiles		Full SIRI format	EU SIRI Minimum profile	Austria	Croatia	Czech Republic	Denmark	France	Italy	Netherlands	Nordic Norway, Sweden, Finland, Denmark(?)	Portugal	Slovenija	Switzerland	UK	Irish	German - VDV
Availability of SIRI national profile			under development	in progress				In use in numerous cities and regions	in progress	specified but not yet in operation	Specified and in use			in progress	Specified and in use
EU Minimum SIRI profile based (applicable when EU SIRI minimum profile available)
EU Minimum SIRI profile compatible (applicable when EU SIRI minimum profile available)												?
Available mappings with full SIRI format
Available mappings with EU Minimum SIRI profile
Functional scope based on MMTIS EU Regulation 1926/2017
LOS 1	Dynamic travel and traffic data - Level of service 1			SIRI implementation in development by PTA						specified but not yet in operation
LOS 1-1	Disruptions (all modes)										dynamic platform is included		Bus locations for about 800 vehicles included in the integrated public passenger transport system.
LOS 1-2	Real-time status information — delays, cancellations, guaranteed connections monitoring (all modes)										dynamic platform is included
LOS 1-3	Status of access node features (including dynamic platform information, operational lifts/escalators, closed entrances and exit locations — all scheduled modes)										dynamic platform is included
LOS 2	Dynamic travel and traffic data - Level of service 2			SIRI implementation in development by PTA
LOS 2-1	Estimated departure and arrival times of services
LOS 2-2	Current road link travel times
LOS 2-3	Cycling network closures/diversions
LOS 2-4	Availability of publicly accessible charging stations for electric vehicles and refuelling points for CNG/LNG, hydrogen, petrol and diesel powered vehicles
LOS 2-5	Car-sharing availability, bike sharing availability
LOS 2-6	Car parking spaces available (on and off-street), parking tariffs, road toll tariffs
LOS 3	Dynamic travel and traffic data - Level of service 3

SIRI software

The following list of software is known to support NeTEx. We distinguish between different categories that may later receive a list of key performance indicators.

Conversion and connectors to SIRI software and between other formats

Name	Availability	Description	Profile	License	URL
Anshar	Available	Java based tool to connect, validate and redistribute SIRI. (Act as a national aggreagation hub for all SIRI feeds in Norway)	Norwegian	EUPL	https://github.com/entur/anshar
OneBusAway SIRI	Available	A set of tools to connect to and convert SIRI.		Apache-2.0	https://github.com/OneBusAway/onebusaway-siri
ara	Available	A set of tools to connect, convert and store SIRI, SIRI-Lite.		Apache-2.0	https://bitbucket.org/enroute-mobi/ara/src/master/
irys	Available	A set of tools to connect and redistribute SIRI.		CeCILL-B	https://github.com/afimb/irys
Diginext/CS-Group	Available				https://mobilitx.diginext.fr/
Soridis/Lumiplan	Available				https://www.lumiplan.com/produit/mobiflux/
Qommute	Available				https://qommute.com

Validators

Name	Availability	Description	Profile	License	URL
BODS	Available	Validator of TransXChange and SIRI-VM		Open Source	https://github.com/department-for-transport-BODS/bods

Producers from CAD/AVL

Name	Availability	Description	Profile	License	URL
IVU.realtime	Available	Producer of realtime data.		Commercial	https://www.ivu.com/products-and-solutions/ivusuite/passenger-information.html
Mobile-ITCS	Available	Producer of realtime data.		Commercial	https://www.initse.com/fileadmin/user_upload/Content/3_Solutions/3_Operations/MOBILE-ITCS_us.pdf
INEO	Available
Navocap	Available
ZenBus	Available	Producer of realtime data.		Commercial	https://zenbus.fr/
IXXI/RATP Smart System	Available	Producer of realtime data.		Commercial	https://www.ratpsmartsystems.com/hopen-go/
Alstom	Available	Producer of realtime data.		Commercial

SIRI extension for New Modes

In line with NeTEx Part 5, corresponding extensions are made in SIRI for real time data such as current number of available vehicles, current number of spaces available to bring back a vehicle or to park, etc. SIRI also provide updates of positions (typically for free floating vehicles). The SIRI Facility Monitoring (FM) service is extended to provide this counted information. Further details are available in the relevant document.

Mapping with GBFS for real time information

In the framework of the CEN work for the extension, a canonical mapping was made between NeTEx Part 5 /SIRI and GBFS. It is available here.