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SIRI - Service Interface for Real Time Information (CEN-OO278181 ) http://www.siri.org.uk. 27- 29 Cursitor Street London, EC4A 1LT nick_knowles@kizoom.com Siri 0.1g v3.6c. Topics. Status UK Guidance Possible Further CEN Work Items Additional Functional Services

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siri service interface for real time information cen oo278181 http www siri org uk

SIRI - Service Interface for Real Time Information (CEN-OO278181 ) http://www.siri.org.uk

27- 29 Cursitor StreetLondon, EC4A 1LT

nick_knowles@kizoom.com

Siri 0.1g v3.6c

topics
Topics
  • Status
  • UK Guidance
  • Possible Further CEN Work Items
    • Additional Functional Services
  • Further convergence / interoperability
    • TIH, Datex ?
siri version 1 0 status
SIRI Version 1.0 Status -
  • CEN V1.0 Document & Schema Complete.
    • SG7 WG3 full agreement after country review
    • Going through CEN processes
  • UK
    • Documentation available on RTIG site www.rtigxml.org.uk
    • Schema will be freely available at www.siri.org.uk
    • Official UK Guidance Note to be finalised
    • Straightforward RTIG Migration
        • StopStatus = StopMonitoring
        • VehicleStatus=VehicleMonitoring
      • Some Live services already!
  • Roadmap
    • TIH / DATEX Alignment ??
    • Some possible work items identified for CEN.
siri approach services
SIRI Approach & Services
  • Separation of Concerns
    • Transport layer is separate
      • Web Service architecture (http &/or SOAP…..)
    • SIRI General Communications Services
      • Common to all types of Functional Service
      • Robust, scaleable, architecture for Real-Time
      • Tuneable for efficient deployment
    • SIRI Functional Services
      • Timetables & Timetable Changes
      • Stop Events (Arrivals & Departures)
      • Vehicle Movement
      • Connection Protection (Timetables, Events)
      • General Informative Messages
support different operation models
Support Different Operation Models
  • Interfaces can be used for different operational models
uk regional guidance notes 1 options
UK Regional Guidance Notes #1 - Options
  • Data Referencing
    • Stops: NaPTAN
    • Geolocation: WGS84
  • Interaction Patterns
    • Request / Response
    • Publish / Subscribe
  • Delivery Pattern
    • Direct only (not– Fetched delivery)
    • Multiple Subscriber Delivery (not Single)
  • Transport & Comms
    • http POST
    • Heartbeat for PubSub
uk regional guidance 2 functions
UK Regional Guidance #2 Functions
  • Core Functional Services
    • Stop Monitoring
    • Vehicle Monitoring
    • General Message
  • Further Functional services
    • Planned Timetable
    • Estimated Timetable
  • (Advanced Services)
    • Connection Timetable
    • Connection Moinitoring
  • Optional Aspects
    • Access Control
possible additional work items
Possible Additional Work Items
  • Real-time Facility Changes Service FR
    • Allows changes to availability of facilities and equipment of stop, vehicle and service to be exchanged in real time . This can be used for example to communicate equipment changes affecting impaired access to PT such as lift or escalator changes. Information is of use to real-time journey-planning and alert services. Should consider interchange aspects.
  • Situation/Event Structured Incident model UK/FR
    • Enhance GMS to have preferred structured incident model for describing disruptions to services, model relates to SIRI, Based on TPEG + TransModel
  • Control Actions Server Interface SE
    • Service for distributing control actions amongst participants, for example for coordinating management of late services.
  • Traffic Status / Prioritisation Interface for UTMC UK/DE
    • Allows real-time public transport management systems to exchange information with road UTMC systems, eg to provide real time delay information a road speed information to the road traffic management system, or to allow for the exchange of signal priority options.
siri separation of concerns
SIRI - Separation of concerns

Data

Content

Exchange

Behaviour

Transport

Protocol

defined

XML Schema

For payload

well-defined interactions

with XML schema

Representations parameterising behaviour

Independent e.g.

HTTP POST,

SOAP.

slide11
TIH

Data

Content

Exchange

Behaviour

Transport

Protocol

define

through

registry

simple GET

request/response

(+ allows more

complex if required,

but does not define)

HTTP GET

(or CORBA)