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DATEX II V2.2 USER GUIDE Document version: 2.2 31 May 2013 European Commission

DATEX II V2.2 USER GUIDE Document version: 2.2 31 May 2013 European Commission Directorate General for Mobility and Transport Copyright © 2013 Page 1 of 63 Page 2 of 63 Prepared by: Date Comment Version ES5 WI2 01/07/2009 1.0 ES5 WI2 15/01/2010 1.1 ES5 WI2 24/06/2011 1.2 ES5 WI2 31/05/2013 2.2 Reviewed by: Date Comment Version ES5 Technical Group 01/07/2009 1.0 ES5 Technical Group 15/01/2010 1.1 ES5 Technical Group 30/06/2011 1.2 ES5 Technical Group 31/05/2013 2.2 Approved by: Date Comment Version ES5 Technical Group 01/07/2009 1.0 ES5 Technical Group 15/01/2010 1.1 ES5 Technical Group 30/06/2011 Authorization for publication 1.2 ES5 Technical Group 31/05/2013 2.2 Page 3 of 63 TABLE OF CONTENTS 1. Introduction ............................................................................................................................. 6 1.1. Objectives ................................................................................................................................. 6 1.2. Document structure ................................................................................................................... 6 1.3. DATEX II reference documents .................................................................................................. 6 2. DATEX II in General ................................................................................................................. 8 2.1. Background ............................................................................................................................... 8 2.2. Important features ..................................................................................................................... 9 2.2.1. Platform Independent data model............................................................................................ 9 2.2.2. Data model levels: A, B, C ...................................................................................................... 9 2.2.3. Data dictionary ..................................................................................................................... 10 2.2.4. XML schema ........................................................................................................................ 10 2.2.5. Exchange mechanisms ......................................................................................................... 11 2.2.6. DATEX II Profiles ................................................................................................................. 12 2.3. DATEX II documents organisation ............................................................................................ 13 3. Exchanged data ..................................................................................................................... 15 3.1. Introduction ............................................................................................................................. 15 3.2. Basic elements ........................................................................................................................ 15 3.3. Publication of basic elements ................................................................................................... 16 4. UML data model content........................................................................................................ 21 4.1. Objectives ............................................................................................................................... 21 4.2. Prerequisite ............................................................................................................................. 21 4.3. Modelling methodology ............................................................................................................ 21 4.4. Data model structure ............................................................................................................... 21 4.5. Logical diagrams structure ....................................................................................................... 21 4.6. D2LogicalModel ....................................................................................................................... 24 4.7. Exchange ................................................................................................................................ 24 4.8. PayloadPublication .................................................................................................................. 24 4.9. Situation publication................................................................................................................. 25 4.9.1. Main features ....................................................................................................................... 25 4.9.2. Situation record .................................................................................................................... 25 4.9.3. Traffic element ..................................................................................................................... 26 4.9.4. Operator action .................................................................................................................... 27 4.9.5. Non-road event information ................................................................................................... 28 4.9.6. Special case: Publisher Push on occurrence ......................................................................... 29 4.10. Elaborated data publication ...................................................................................................... 31 4.10.1. Objectives and utilisation mechanisms .................................................................................. 31 4.10.2. Content ................................................................................................................................ 31 4.11. Predefined locations publication ............................................................................................... 32 4.11.1. Objectives and utilisation mechanisms .................................................................................. 32 4.11.2. Content ................................................................................................................................ 33 4.12. Traffic View publication ............................................................................................................ 33 4.12.1. Presentation ......................................................................................................................... 33 4.12.2. Content ................................................................................................................................ 33 4.13. Measured data publication ....................................................................................................... 34 4.14. Measurement site table publication .......................................................................................... 34 4.14.1. Objectives and utilisation mechanisms .................................................................................. 34 4.14.2. Content ................................................................................................................................ 34 4.15. VMS publication ...................................................................................................................... 35 4.15.1. Objectives and utilisation mechanisms .................................................................................. 35 4.15.2. Content ................................................................................................................................ 35 4.16. VMS table publication .............................................................................................................. 37 4.16.1. Objectives and utilisation mechanisms .................................................................................. 37 4.16.2. Content ................................................................................................................................ 37 4.17. Group of Locations .................................................................................................................. 38 4.17.1. Important features ................................................................................................................ 38 4.17.2. Point location ....................................................................................................................... 38 4.17.3. Linear location ...................................................................................................................... 39 4.17.4. Area location ........................................................................................................................ 39 4.17.5. ALERT-C location referencing system ................................................................................... 40 4.17.6. Linear referencing system of locations................................................................................... 41 5. Exchange specifications ....................................................................................................... 44 5.1. Exchange reference documents ............................................................................................... 44 5.2. Exchange Overview ................................................................................................................. 44 5.2.1. Logical view ......................................................................................................................... 44 5.2.2. Technical view...................................................................................................................... 45 Page 4 of 63 6. Interchange agreement.......................................................................................................... 47 6.1. Definition ................................................................................................................................. 47 6.2. General ................................................................................................................................... 47 6.3. Access .................................................................................................................................... 47 6.4. Data exchange ........................................................................................................................ 47 6.5. Rights and obligations.............................................................................................................. 48 7. Annexes ................................................................................................................................. 50 7.1. Annex 1: UML basic elements .................................................................................................. 50 7.2. Use of ALERT-C location referencing system ........................................................................... 51 7.2.1. Introduction .......................................................................................................................... 51 7.2.2. Definitions for Method 4 ........................................................................................................ 51 7.2.3. Syntax ................................................................................................................................. 51 7.2.4. Example 1: Case of positive direction for a linear event ......................................................... 52 7.2.5. Example 2: Case of positive direction for a point event .......................................................... 53 7.2.6. Example 3: Case of negative direction for a linear event ........................................................ 53 7.2.7. Example 4: Case of negative direction for a point event ......................................................... 54 7.2.8. Example 5: Case of both directions for a point event .............................................................. 55 7.2.9. Example 6: Case of both directions for a linear event ............................................................. 56 7.3. Use of linear location referencing system.................................................................................. 57 7.3.1. Introduction .......................................................................................................................... 57 7.3.2. Definitions ............................................................................................................................ 57 7.3.3. Syntax for a point location ..................................................................................................... 58 7.3.4. Syntax for a linear location .................................................................................................... 58 7.3.5. Example 1: Case of aligned direction for a point event ........................................................... 59 7.3.6. Example 2: Case of aligned direction for a linear event .......................................................... 59 7.3.7. Example 3: Case of direction defined by two referents for a point event.................................. 59 7.3.8. Definition of the underlying linear element ............................................................................. 59 7.4. Use of TPEG location referencing system................................................................................. 60 7.4.1. Introduction .......................................................................................................................... 60 7.4.2. Definitions ............................................................................................................................ 60 7.4.3. Syntax for a point location ..................................................................................................... 60 7.4.4. Syntax for a linear location .................................................................................................... 61 7.4.5. Expression of latitude and longitude ...................................................................................... 63 Page 5 of 63 Introduction 6 Page 6 of 63 1.1. Objectives This document is mainly targeted towards non-software personnel who wish to understand what DATEX II is. It represents an introduction and a help to understand other DATEX II documents (which can be downloaded from the DATEX II web site http://www.datex2.eu ). This document should also be of use to software developers as a reference document. 1.2. Document structure The document is structured into 6 chapters with the following content:  Chapter 1 “Introduction” gives a brief overview on the document objectives and structure and lists DATEX II reference documents.  Chapter 2 “DATEX II in general” provides background information and details of important DATEX II features. It also introduces the whole set of DATEX II reference documents.  Chapter 3 “Exchanged data” lists all possible exchanged data, introduces DATEX II terminology and presents new DATEX II concepts.  Chapter 4 “UML data model content” presents the data model structure (packages, diagrams, classes, attributes, etc.)  Chapter 5 “Exchange specification” explains, at a high level the exchange mechanisms and their options.  Chapter 6: “Interchange agreement” provides help to build exchanges between a Supplier and its Clients. Annexes provide some explanations about UML formalism and about the different location referencing systems adopted by DATEX II. 1.3. DATEX II reference documents Reference in this document DATEX II document Document version Date [Modelling methodology] DATEX II Modelling methodology 2.2 31-05-2013 [Data model] DATEX II Data model 2.2 31-05-2013 [Schema generationtool] DATEX II schema generation tool 2.2 31-05-2013 [Exchange PSM] DATEX II Exchange PSM 2.2 31-05-2013 [WSDL] DATEX II Push/Pull 2.2 31-05-2013 [XML schema] DATEX II schema 2_2_2 2.2 31-05-2013 Supporting documentation [User guide] DATEX II User guide 2.2 31-05-2013 [Software developers guide] DATEX II dev guide 2.2 31-05-2013 [XML schematoolguide] DATEX II Schema generation tool guide 2.2 31-05-2013 [Extension guide] DATEX II Extension guideline 2.2 31-05-2013 [Profile guide] DATEX II Profile guideline 2.2 31-05-2013 [Exchange PIM] DATEX II Exchange PIM 1.01 08-02-2005 1. Introduction Page 7 of 63 DATEX II in general Page 8 of 63 2.1. Background Delivering European Transport Policy in line with the White Paper issued by the European Commission requires co-ordination of traffic management and development of seamless pan European services. With the aim to support sustainable mobility in Europe, the European Commission has been supporting the development of information exchange mainly between the actors of the road traffic management domain for a number of years. In the road sector, the DATEX standard was developed for information exchange between traffic management centres and constitutes the reference for applications that have been developed in the last 10 years. With DATEX II the DG TREN now also pushes the door wide open for actors from the wider traffic and travel information sector. Much investment has been made in Europe both, in traffic control and information centres over the last decade and also in a quantum shift in the monitoring of the Trans European Network. This is in line with delivering the objectives of the Tempo projects for safer, better-informed travellers. Collecting information is only part of the story – to make the most of the investment data needs to be exchanged both with other centres and, in a more recent development, with those developing pan-European services provided directly to road users. DATEX was designed and developed as a traffic and travel data exchange mechanism by a European task force set up to standardise the interface between traffic control and information centres. It has been the reference for applications that have been developed and implemented in Europe. The existing DATEX network consists of 50 to 60 operational nodes organised in different network and node types throughout Europe. The majority of nodes are used for national exchange of data, but some of them support international exchange. The DATEX technical documents namely the data dictionary (pre-standard ENV13106:2000) and the DATEX-net specifications for data exchange (pre-standard ENV13777:2000) needed to evolve to reflect technological evolutions, the experience gained in data exchange implementations that were achieved between the European countries and the new needs that have been identified by the market. Alongside the DATEX pre-standards, a Data Exchange Memorandum of Understanding (DATEX MoU) covering international exchange of traffic data was formally established in October 1997. The MoU confirmed in a formal manner that the development of international traffic data exchange would be based on the DATEX technical specifications, and it established an organisational framework that enabled users to influence and participate in the developments. Different organisations were created under the umbrella of this MoU (Supervisory Management Committee, Technical Committee and User Forum). 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