Amendments issued since publication

Date Text aff ect ed

DD CEN/TS 15531-5: 2011

TECHNICAL SPECIFICATION

SPÉ CIFICATION TECHNIQUE

TECHNISCHE SPEZIFIKATION

CEN/TS 15531-5

July 2011

ICS

English Version

Public transport - Service interface for real-time information

relating to public transport operations - Part 5: Functional

service interfaces - Situation Exchange

Service d'é changes de donné es temps ré el pour le

Transport en Commun - Partie 5: interfaces de service

fonctionnel - Echanges de perturbation structuré s (causes

et consé quences dé taillé es)

Ö ffentlicher Verkehr - Diensteschnittstelle fü r den

Echtzeitaustausch von Betriebsinformationen des Ö PNV

(SIRI) - Teil 5: Funktionelle Serviceschnittstelle: Situativer

Austausch

This Technical Specification (CEN/TS) was approved by CEN on 19 March 2011 for provisional application.

The period of validity of this CEN/TS is limited initially to three years. After two years the members of CEN will be requested to submit their

comments, particularly on the question whether the CEN/TS can be converted into a European Standard.

CEN members are required to announce the existence of this CEN/TS in the same way as for an EN and to make the CEN/TS available

promptly at national level in an appropriate form. It is permissible to keep conflicting national standards in force (in parallel to the CEN/TS)

until the final decision about the possible conversion of the CEN/TS into an EN is reached.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,

Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION

COMITÉ EUROPÉ EN DE NORMALISATION

EUROPÄ ISCHES KOMITEE FÜ R NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2011 CEN All rights of exploitation in any form and by any means reserved

worldwide for CEN national Members.

Ref. No. CEN/TS 15531-5: 2011: E

DD CEN/TS 15531-5: 2011

CEN/TS 15531-5: 2011 (E)

Contents Page

Foreword............................................................................................................................................................. 4

Introduction........................................................................................................................................................ 6

Scope..................................................................................................................................................... 7

Normative references........................................................................................................................... 7

Terms and definitions........................................................................................................................... 8

Symbols and abbreviations............................................................................................................... 12

Situations as Software Entities......................................................................................................... 12

General................................................................................................................................................. 12

Structured Situations......................................................................................................................... 13

Distributed Situation processing...................................................................................................... 14

Identity and Write-Only Updates....................................................................................................... 14

Currency and the Situation Life Cycle.............................................................................................. 15

Representational model for Situation Elements.............................................................................. 16

5.3.4 Update chains − Causal chains......................................................................................................... 17

5.3.5 Cross-referencing Situations − Causal chains................................................................................ 18

Branching and distributed updates.................................................................................................. 18

Archiving............................................................................................................................................. 20

Summary of Situation Management.................................................................................................. 20

General................................................................................................................................................. 20

Situation Identity................................................................................................................................. 20

Situation Life Cycle............................................................................................................................. 21

Situation Update Content................................................................................................................... 21

Example of identifier allocation......................................................................................................... 21

Date time stamps as identifiers......................................................................................................... 22

Interoperability of Situation management systems........................................................................ 22

General................................................................................................................................................. 22

Datex2 Interoperability....................................................................................................................... 23

TPEG Interoperability......................................................................................................................... 23

Communications Bandwidth............................................................................................................. 24

The Situation Model............................................................................................................................ 24

General................................................................................................................................................. 24

Representing a PT Situation in SIRI-SX............................................................................................ 25

Summary of PT Situation model....................................................................................................... 25

PT Situation Element Body................................................................................................................ 26

PT Situation Body Details.................................................................................................................. 27

PT Situation Reason........................................................................................................................... 29

Situation Consequence...................................................................................................................... 31

The PT AffectsScope.......................................................................................................................... 33

Representing a Road Situation in SIRI-SX....................................................................................... 39

Summary of Road Situation model................................................................................................... 39

Road Situation Element Body........................................................................................................... 40

Common Accessibility....................................................................................................................... 41

Publishing Actions............................................................................................................................. 42

Common Types................................................................................................................................... 44

7 Situation Exchange Service [SX]...................................................................................................... 50

Purpose................................................................................................................................................ 50

Description.......................................................................................................................................... 50

Reference Data.................................................................................................................................... 50

Capability and Permission Matrices................................................................................................. 50

DD CEN/TS 15531-5: 2011

CEN/TS 15531-5: 2011 (E)

Capability Matrix.................................................................................................................................. 50

Permission Matrix................................................................................................................................ 52

UML Diagrammatic Representation................................................................................................... 53

General................................................................................................................................................. 53

UML Detailed Diagram of SituationExchangeRequest.................................................................... 54

UML Diagram of SituationExchangeDelivery - Summary................................................................ 55

UML Diagram of SituationExchangeDelivery - Detail...................................................................... 56

UML Diagram of SituationContext..................................................................................................... 57

SituationExchangeRequest................................................................................................................ 58

SituationExchangeRequest Definition.............................................................................................. 58

SituationStatusFilter Definition.......................................................................................................... 60

SituationNetworkFilter Definition....................................................................................................... 60

SituationStopPlaceFilter Definition................................................................................................... 61

SituationJourneyFilter Definition....................................................................................................... 61

SituationPlaceFilter Definition........................................................................................................... 61

SituationExchangeRequest Example................................................................................................ 62

SituationExchangeSubscriptionRequest.......................................................................................... 62

SituationExchangeSubscriptionRequest Definition........................................................................ 62

SituationExchangeSubscriptionRequest Example.......................................................................... 63

SituationExchangeDelivery................................................................................................................ 63

ServiceDelivery with a SituationExchangeDelivery......................................................................... 63

SituationExchangeDelivery Element................................................................................................. 64

SituationContext Element................................................................................................................... 64

SituationNetworkContext Element..................................................................................................... 65

PtSituationElement.............................................................................................................................. 65

RoadSituationElement...................................................................................................................... 104

SituationExchangeDelivery Examples - SituationExchangeDelivery PT Examples.................. 107

Annex A (normative) Notation....................................................................................................................... 109

Annex B (normative) Comparison of Terms................................................................................................ 114

Annex C (informative) Use Cases for Situation Exchange......................................................................... 117

Bibliography.................................................................................................................................................... 123

DD CEN/TS 15531-5: 2011

CEN/TS 15531-5: 2011 (E)