9c919d89e6c11c485240c1eb8508c0ed.ppt
- Количество слайдов: 17
TC 278 WG 3 SIRI – Server Interface for Realtime Information Nick Knowles, CTO Nick. Knowles@kizoom. com © Copyright Kizoom 2006
SIRI – Introduction • Real-time Server-to-Server Services for Public Transport • Defines a Service Interface for exchanging realtime information for public transport networks. • Complements an underlying static information model for network and timetable description • Provides information on any change on the timetabled information, from original publication to the actual & predicted transport running times. 2
IFOPT: PT Stop Place model SIRI Architecture • Modular functional services Facility++ Situation++ General Message Vehicle monitoring Status Connection monitoiring Pluggable data e. g. Na. PTAN Connection timetable • Stop monitoiring Efficient real-time patterns Stop timetable • Transmodel: PT model Estimated timetable Common transport Situation Place Stop Points, Vehicle Journeys, Lines, Journey Patterns, Vehicles, etc Production timetable • TPEG: Stop Place SIRI Common Services Pull Push 3
Separation of concerns Data Content defined XML Schema For payload Exchange Behaviour well-defined interactions with XML schema Representations parameterising behaviour Transport Protocol Independent e. g. HTTP POST, SOAP. 4
Example use of SIRI Services PT ET AVMSST PT SM PT ET GMS VM SM JP ET SM ET Web SM& Mobile VM AVMSST GMS SM GMS GMS ICS GMS Alerts 5
Example 1: Hamburg • Federated Modes & Regions 6
Example 2: Copenhagen • Integrator 7
Example: Isle de France • Hybrid 8
SIRI – Gene Pool/Evolution • • Derived from UK, German & French, & Scandinavian National XML & Trans. Model based Supports both pull & Push architectures Same Interfaces can be used for different operational models 9
Proposed New work Item SIRI Situation Model New • Add a Full Incident Service to • Includes addition information for internal management & user of incidents • Full XML integrated with SIRI models. • Requirements • • Support advanced ITS operations – eg RTJP, alerts, angels Multi-modal, Road Interoperable with TPEG – Export Interoperable with Datex • To do • Review Incident categories and properties • Review operational requirements • Review Datex 2 & Road requirements 10
New SIRI Services • SIRI Situation Exchange (SX): • Scope: Real-time Unplanned/Planned Incidents “Back • Trans. Model network & service model • SIRI RT Transport • IFOPT Place model • TPEG Categories and classifications • “Back Office for TPEG” • Status • Initial Draft Feb 2007 • Working on revised Draft for May 2007 12
New SIRI Services • SIRI Facilities Monitoring • Scope: Real-time Changes to Availability of Equipment / Local services • SIRI Transport • IFOPT Place model & Equipment Categories • IFOPT Accessibility model (Harmonise with IFOPT GDF etc) • Status • Initial Draft Feb 2007 • Working on revised Draft 13
New SIRI Services • SIRI Facilities Monitoring • Scope: Real-time Changes to Availability of Equipment / Local services • SIRI Transport • IFOPT Place model & Equipment Categories • IFOPT Accessibility model (Harmonise with IFOPT GDF etc) • Status • Initial Draft Feb 2007 • Working on revised Draft 14
The Bigger Picture Building National & International models Nick Knowles, CTO Nick. Knowles@kizoom. com © Copyright Kizoom 2006
Incidents RT (TPEG PTI) Model Dependencies PT Journey Planner (Journey. Web) RT Timetable (SIRI ET) Road Journey Planner) Departures RT (SIRI SM) Incidents RT (SIRI SS) Timetables (Trans. Model) Stop Place (IFOPT) Equipment Types Accessibility Categories Facilities RT (SIRI FM) Journey Times Road Network (XGDF) GIS coords GML 16
Norms & Standards for Passenger Information Systems Public Transport Data Reference Transmodel Road Information IFOPT GDF Datex 2 Data Model (Core) Data Model Dictionnary Localisation Network Reference Data: TRIDENT Inter-system Data Exchange XML Protocols Communication to end user (Trans. Xchange/VDV 451 -452) Facilities SIRI Real-Time Services Web W 3 C HTTP Web Service Wap I-Mode SMS … Events TPEG Datex 2 OGC-GML X-GDF RDS-TMC 17
Mapping OS+ ITN Layer DNF, XGDF Points of Interest e. g. Point. X IFOPT Stops Na. PTAN Fares Fare. XChange Updates Exchange Data Build IFOPT Places, Areas NPTG Bus Timetables Trans. XChange UK Public Transport Data Exchange for JP: Use of standards Reservation Dynamic Fares Engines Journey. Web Places Operators Updates Exchange Data Build LBS/ Placefinder Journey Planner Engines Real-Time Server Stop. Events Real-Time Server Vehicle Journeys + Fares Timetable Train Timetables RJIS CIF Services Vehicles Connection Common Abstract model (Trans. Model) SIRI Distrib ution Clients


