SIST EN 16157-2:2019
(Main)Intelligent transport systems - DATEX II data exchange specifications for traffic management and information - Part 2: Location referencing
Intelligent transport systems - DATEX II data exchange specifications for traffic management and information - Part 2: Location referencing
This European Standard series (EN 16157) specifies and defines component facets supporting the exchange and shared use of data and information in the field of traffic and travel.
The component facets include the framework and context for exchanges, the modelling approach, data content, data structure and relationships.
This European Standard series is applicable to:
- traffic and travel information which is of relevance to road networks (non-urban and urban),
- public transport information that is of direct relevance to the use of a road network (e.g. road link via train or ferry service),
- traffic and travel information in the case of Cooperative intelligent transport systems (C-ITS).
This European Standard series establishes specifications for data exchange between any two instances of the following actors:
- Traffic Information Centres (TICs),
- Traffic Control Centres (TCCs),
- Service Providers (SPs).
Use of this European Standard series may be applicable for use by other actors.
This European Standard series covers, at least, the following types of informational content:
- road traffic event information - planned and unplanned occurrences both on the road network and in the surrounding environment,
- operator initiated actions,
- road traffic measurement data, status data, and travel time data,
- travel information relevant to road users, including weather and environmental information,
- road traffic management information and instructions relating to use of the road network.
This part of the EN 16157 series specifies the informational structures, relationships, roles, attributes and associated data types, for the implementation of the location referencing systems used in association with the different publications defined in the Datex II framework. It also defines a DATEX II publication for exchanging predefined locations. This is part of the DATEX II platform independent data model.
Intelligente Verkehrssysteme - DATEX II Datenaustauschspezifikation für Verkehrsmanagement und Verkehrsinformationen - Teil 2: Ortsreferenzierung
Systèmes de transport intelligents - Spécifications Datex II d'échange de données pour la gestion du trafic et l'information routière - Partie 2 : Localisation
La présente Norme européenne (EN 16157) spécifie et définit des aspects des composants requis pour permettre l’échange et le partage de données et d’informations dans le domaine de l’information de trafic et de parcours routiers.
Ces aspects constitutifs comprennent l’architecture et le contexte des échanges, la modélisation, le contenu des données, la structure des données et les relations entre elles. Cette série de normes européennes est applicable :
— aux informations de trafic et de parcours routiers qui relèvent directement de l’utilisation du réseau routier (non urbain et urbain) ;
— aux informations sur les transports publics qui relèvent directement de l’utilisation du réseau routier (par exemple liaison routière via ferroutage ou bateau) ;
— aux informations de trafic ou de parcours routiers dans le cas de systèmes de transport intelligents coopératifs (C-ITS).
Cette série de normes européennes établit des spécifications d’échange de données entre deux instances quelconques des acteurs suivants :
— Centres d’informations routières ;
— Centres de gestion du trafic ;
— Prestataires de services.
La présente série de normes européennes peut également être utilisée par d'autres acteurs.
La présente série de normes européennes couvre, au minimum, les types suivants de contenu d’information :
— informations sur des événements concernant le trafic routier, planifiés ou non et pouvant survenir sur le réseau routier comme sur le milieu environnant ;
— actions à l'initiative des opérateurs ;
— données de trafic routier, données d’état et données de temps de parcours ;
— informations pour les usagers de la route, comprenant les informations météorologiques et environnementales ;
— informations de gestion du trafic routier et instructions relatives à l'utilisation du réseau routier.
Cette partie de la série EN 16157 spécifie les structures d'information, les relations, les rôles, les attributs et les types de données associées pour la mise en œuvre des systèmes de localisation utilisés conjointement avec les différentes publications définies dans l’architectureDatex II. Elle définit également une publication Datex II pour l'échange de localisations prédéfinies. Ceci fait partie du modèle de données indépendant de la plateforme de Datex II
Inteligentni transportni sistemi - Specifikacije za izmenjavo podatkov DATEX II pri upravljanju prometa in informiranju - 2. del: Navajanje lokacije
Ta skupina evropskih standardov (EN 16157) določa in opredeljuje vidike v zvezi s komponentami, ki omogočajo izmenjavo in skupno uporabo prometnih ter potovalnih podatkov in informacij.
Vidiki v zvezi s komponentami vključujejo okvir in kontekst za izmenjave, pristop z modeliranjem, vsebino podatkov, strukturo podatkov ter razmerja.
Ta skupina evropskih standardov se uporablja za:
– prometne in potovalne informacije, ki so pomembne za cestna omrežja (na podeželju in v mestih),
– informacije o javnem prevozu, ki so neposredno pomembne za uporabo cestnega omrežja (npr. cestna povezava prek železniške ali trajektne storitve),
– prometne in potovalne informacije v primeru kooperativnih inteligentnih transportnih sistemov (C-ITS).
Ta skupina evropskih standardov določa specifikacije za izmenjavo podatkov med katerima koli naslednjima akterjema:
– prometni informacijski centri (TIC),
– prometni nadzorni centri (TCC),
– ponudniki storitev (SP).
To skupino evropskih standardov lahko uporabljajo tudi drugi akterji.
Ta skupina evropskih standardov zajema najmanj naslednje vrste informacijskih vsebin:
– informacije o dogajanju v cestnem prometu, – načrtovani ali nenačrtovani dogodki v cestnem omrežju in v njegovi okolici,
– dejanja, ki jih izvedejo izvajalci,
– podatki o merjenju cestnega prometa, podatki o stanju in podatki o času potovanja,
– potovalni podatki, ki so pomembni za uporabnike cest, vključno z informacijami o vremenu in okolju,
– informacije o upravljanju cestnega prometa in navodila za uporabo cestnega omrežja.
Ta del skupine standardov EN 16157 določa informacijske strukture, razmerja, vloge, parametre in z njimi povezane podatkovne tipe za izvajanje sistemov za navajanje lokacije, ki se uporabljajo v povezavi z različnimi publikacijami, določenimi v okviru izmenjave DATEX II. Določa tudi publikacije DATEX II za izmenjavo vnaprej določenih lokacij. To je del neodvisnega podatkovnega modela platforme DATEX II.
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Inteligentni transportni sistemi - Specifikacije za izmenjavo podatkov DATEX II pri upravljanju prometa in informiranju - 2. del: Navajanje lokacijeIntelligente Verkehrssysteme - DATEX II Datenaustauschspezifikation für Verkehrsmanagement und Verkehrsinformationen - Teil 2: OrtsreferenzierungSystèmes de transport intelligents - Spécifications Datex II d'échange de données pour la gestion du trafic et l'information routière - Partie 2 : LocalisationIntelligent transport systems - DATEX II data exchange specifications for traffic management and information - Part 2: Location referencing35.240.60Uporabniške rešitve IT v prometuIT applications in transportICS:Ta slovenski standard je istoveten z:EN 16157-2:2019SIST EN 16157-2:2019en,fr,de01-maj-2019SIST EN 16157-2:2019SLOVENSKI
STANDARDSIST-TS CEN/TS 16157-2:20111DGRPHãþD
SIST EN 16157-2:2019
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16157-2
March
t r s { English Version
Intelligent transport systems æ DATEX II data exchange specifications for traffic management and information æ Part
tã Location referencing Systèmes de transport intelligents æ Spécifications Datex II d 5échange de données pour la gestion du trafic et l 5information routière æ Partie
t ã Localisation
Intelligente Verkehrssysteme æ DATEX II Datenaustauschspezifikation für Verkehrsmanagement und Verkehrsinformationen æ Teil
tã Ortsreferenzierung This European Standard was approved by CEN on
t December
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s { CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s x s w yæ tã t r s { ESIST EN 16157-2:2019
EN 16157-2:2019 (E) 2 Contents Page European foreword . 4 Introduction . 5 1 Scope . 6 2 Normative references. 7 3 Terms and definitions . 8 4 Symbols and abbreviations . 12 5 Conformance . 12 6 UML notation . 13 7 The DATEX II location referencing model . 13 7.1 General . 13 7.1.1 General . 13 7.1.2 The package “LocationReference” . 13 7.1.3 The class “PointLocation” . 15 7.1.4 The class “LinearLocation . 17 7.1.5 The class “AreaLocation” . 19 7.2 The package “AlertC” . 20 7.2.1 The package “AlertCArea” . 20 7.2.2 The package “AlertCLinearByCode” . 21 7.2.3 The package “AlertCMethod2Linear” . 22 7.2.4 The package “AlertCMethod2Point” . 24 7.2.5 The package “AlertCMethod4Linear” . 25 7.2.6 The package “AlertCMethod4Point” . 26 7.3 The package “Gml”. 27 7.3.1 The class model . 27 7.3.2 Semantics . 27 7.4 The package “LinearReferencing” . 28 7.4.1 The package “PointAlongLinearElement”. 28 7.4.2 The package “LinearWithinLinearElement” . 31 7.5 The package “PointCoordinates” . 31 7.5.1 The class model . 31 7.5.2 Semantics . 32 7.6 The package “SupplementaryPositionalDescription” . 33 7.6.1 The class model . 33 7.6.2 Semantics . 33 7.7 The package “TpegLoc” . 34 7.7.1 The package “TpegDescriptor” . 34 7.7.2 The package “TpegPointLocation” . 35 7.7.3 The package “TpegLinearLocation” . 37 7.7.4 The package “TpegAreaLocation” . 39 7.8 The package “OpenLR” . 40 7.8.1 The package “OpenlrPoint” . 40 7.8.2 The package “OpenlrLinear” . 41 7.8.3 The package “OpenlrArea” . 42 7.9 The package “NamedArea” . 43 SIST EN 16157-2:2019
EN 16157-2:2019 (E) 3 7.9.1 The class model . 43 7.9.2 Semantics . 44 8 The predefined locations publication . 44 8.1 General . 44 8.2 The package “PredefinedLocationsPublication” . 44 8.2.1 The class model . 44 8.2.2 Semantics . 45 Annex A (normative)
Data dictionary . 47 Annex B (normative)
Referenced XML schemas . 133 Annex C (informative)
Locations referencing methods . 200 Bibliography . 222
SIST EN 16157-2:2019
EN 16157-2:2019 (E) 4 European foreword This document (EN 16157-2:2019) has been prepared by Technical Committee CEN/TC 278 “Intelligent transport systems”, the secretariat of which is held by NEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2019, and conflicting national standards shall be withdrawn at the latest by September 2019. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TS 16157-2:2011. The major differences introduced in the new edition of this part are the following: — introduction of a new location referencing system based on ISO/TS 21219-22 “OpenLR™”; — introduction of a new location refrencing g system for linear features based on GML LineString; — introduction of features to deal with 3D coordinates and accuracy assessment; — flexibility when using linear referencing systems; — remodelling of the “PredefinedLocationsPublication”; — correction of different bugs. EN 16157-2 is the second part of the EN 16157 series, Intelligent transport systems — DATEX II data exchange specifications for traffic management and information”; the other parts are: — Part 1: Context and framework; — Part 3: Situation Publication; — Part 4: Variable Message Sign (VMS) Publications [Technical Specification]; — Part 5: Measured and elaborated data publications [Technical Specification]; — Part 6: Parking Publications [Technical Specification]; — Part 7: Common data elements. Other parts will be developed in the future. According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 5 Introduction This European Standard defines a common set of data exchange specifications to support the vision of a seamless interoperable exchange of traffic and travel information across boundaries, including national, urban, interurban, road administrations, infrastructure providers and service providers. Standardization in this context is a vital constituent to ensure interoperability, reduction of risk, reduction of the cost base, promotion of open marketplaces and many social, economic and community benefits to be gained from more informed travellers, network managers and transport operators. 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, DATEX II has been long in fruition, with the European Commission being fundamental to its development through an initial contract and subsequent co-funding through the Euro-Regional projects. With this standardization of DATEX II, there is a real basis for common exchange between the actors of the traffic and travel information sector. This European Standard includes the framework and context for exchanges, the modelling approach, data content, data structure and relationships. This European Standard supports a methodology that is extensible. This part of EN 16157 deals with DATEX II location referencing. It references existing location referencing Standards or European Standards. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 6 1 Scope This European Standard series (EN 16157) specifies and defines component facets supporting the exchange and shared use of data and information in the field of traffic and travel. The component facets include the framework and context for exchanges, the modelling approach, data content, data structure and relationships. This European Standard series is applicable to: — traffic and travel information which is of relevance to road networks (non-urban and urban), — public transport information that is of direct relevance to the use of a road network (e.g. road link via train or ferry service), — traffic and travel information in the case of Cooperative intelligent transport systems (C-ITS). This European Standard series establishes specifications for data exchange between any two instances of the following actors: — Traffic Information Centres (TICs), — Traffic Control Centres (TCCs), — Service Providers (SPs). Use of this European Standard series may be applicable for use by other actors. This European Standard series covers, at least, the following types of informational content: — road traffic event information – planned and unplanned occurrences both on the road network and in the surrounding environment, — operator initiated actions, — road traffic measurement data, status data, and travel time data, — travel information relevant to road users, including weather and environmental information, — road traffic management information and instructions relating to use of the road network. This part of the EN 16157 series specifies the informational structures, relationships, roles, attributes and associated data types, for the implementation of the location referencing systems used in association with the different publications defined in the Datex II framework. It also defines a DATEX II publication for exchanging predefined locations. This is part of the DATEX II platform independent data model. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 7 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 16157-1:2018, Intelligent transport systems – DATEX II data exchange specifications for traffic management and information – Part 1: Context and Framework EN 16157-7, Intelligent transport systems – DATEX II data exchange specifications for traffic management and information – Part 7: Common data elements EN 16803-1, Space – Use of GNSS-based positioning for road Intelligent Transport Systems (ITS) – Part 1: Definitions and system engineering procedures for the establishment and assessment of performances EN ISO 3166-1, Codes for the representation of names of countries and their subdivisions – Part 1: Country codes (ISO 3166-1) EN ISO 14819-1, Intelligent transport systems – Traffic and travel information messages via traffic message coding – Part 1: Coding protocol for Radio Data System – Traffic Message Channel (RDS-TMC) using ALERT-C (ISO 14819-1) EN ISO 14819-3:2013, Intelligent transport systems – Traffic and travel information messages via traffic message coding – Part 3: Location referencing for Radio Data System – Traffic Message Channel (RDS-TMC) using ALERT-C (ISO 14819-3:2013) EN ISO 14825:2011, Intelligent transport systems – Geographic Data Files (GDF) – GDF5.0 (ISO 14825:2011) CEN ISO/TS 18234-6, Traffic and Travel Information (TTI) – TTI via Transport Protocol Expert Group (TPEG) data-streams – Part 6: Location referencing applications (ISO/TS 18234-6) EN ISO 19136:2009, Geographic information – Geography Markup Language (GML) (ISO 19136:2007) EN ISO 19148:2012, Geographic information
Linear referencing (ISO 19148:2012) CEN ISO/TS 24530-2, Traffic and Travel Information (TTI) – TTI via Transport Protocol Experts Group (TPEG) Extensible Markup Language (XML) – Part 2: tpeg-locML (ISO/TS 24530-2) ISO 3166-2, Codes for the representation of names of countries and their subdivisions – Part 2: Country subdivision code ISO/IEC 19505-1, Information technology – Object Management Group Unified Modeling Language (OMG UML) – Part 1: Infrastructure ISO/TS 21219-22, Intelligent transport systems – Traffic and travel information (TTI) via transport protocol experts group, generation 2 (TPEG2) – Part 22: OpenLR location referencing (TPEG2-OLR) SIST EN 16157-2:2019
EN 16157-2:2019 (E) 8 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 16157-1, EN 16157-7 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp
3.1 area two-dimensional, geographical region on the surface of the Earth [SOURCE: ISO 17572-1:2015 [5], 2.1.2, modified – The original Note 1 to entry was not reproduced here.] 3.2 confidence ellipse horizontal position accuracy in a shape of ellipse with a predefined confidence level (e.g. 95 %), the centre of which corresponds to the reference position point for which the position accuracy is evaluated [SOURCE: ETSI/TS 102 894-2 V1.2.1 (2014-09), A.67, modified – The wording of the present definition was altered.] 3.3 descriptor characteristic of a geographic object, usually stored in an attribute EXAMPLE Road names or road numbers. 3.4 destination specification of the end point of a defined route or itinerary Note 1 to entry: This may be either a location on a network or an area location. 3.5 ellipsoidal height distance of a point from the ellipsoid measured along the perpendicular from the ellipsoid to point positive if upwards or outside of the ellipsoid [SOURCE: EN ISO 19111:2007, 4.19, modified – The original Note 1 to entry was not reproduced here.] 3.6 European terrestrial reference system 89 ETRS89 recommended terrestrial reference system for Europe and coincident with ITRS at the epoch 1989.0 Note 1 to entry: Unlike ITRS, ETRS is centred on the stable part of the European plate and not subject to change due to continental drift in most of Europe. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 9 3.7 geodetic coordinate one of the sequences of two (or three) numbers designating the position of a point, expressed in geodetic latitude, geodetic longitude and (in the three-dimensional case) ellipsoidal or gravity-related height Note 1 to entry: Adapted from EN ISO 19111:2007. 3.8 gravity-related height height dependent on the Earth’s gravity field [SOURCE: EN ISO 19111:2007, 4.28, modified – The original Note 1 to entry was not reproduced here.] 3.9 grid special instance of rectangle location given by a base rectangular shape that is its lower left cell multiplied to the North (by defining the number of rows) and to the East (by defining the number of columns) 3.10 ILOC descriptor one of the three descriptors associated to an ILOC reference 3.11 international terrestrial reference system ITRS reference system for the Earth derived from precise and accurate space geodesy measurements, not restricted to GPS Doppler measurements, which is periodically tracked and revised by the International Earth Rotation Service (I.E.R.S.) [SOURCE: ISO 17572-1:2015, 2.1.16] 3.12 itinerary group of one or more physically separate locations arranged as an ordered set that defines a route 3.13 latitude geodetic latitude angle from the equatorial plane to the perpendicular to the Earth through a given point, northwards treated as positive Note 1 to entry: Adapted from EN ISO 19111:2007. 3.14 line string curve composed of straight-line segments [SOURCE: EN ISO 19136:2009] SIST EN 16157-2:2019
EN 16157-2:2019 (E) 10 3.15 linear having a one-dimensional character Note 1 to entry: Adapted from ISO 17572-1:2015. 3.16 linear referencing specification of a location relative to a linear element as a measurement along that element Note 1 to entry: Adapted from EN ISO 19148:2012. 3.17 location identifiable geographic place [SOURCE: EN ISO 19112:2005, 4.4, modified – The original example was not reproduced here.] Note 1 to entry: It is either on a network (as a point or a linear location) or an area. This may be provided in one or more referencing systems. 3.18 location code tabular address of the pre-stored location details in the location table used by the information provider Note 1 to entry: Adapted from EN ISO 14819-3:2013 as it is mainly associated to ALERT-C. 3.19 location reference reference data set assigned to a location Note 1 to entry: A reference unambiguously defines one location in the location referencing system. The reference is the set of data which is passed between different implementations using the same location referencing system to identify the location. 3.20 location referencing system LRS referencing system complete system by which location references are generated, according to a location referencing method, and communicated, including standards, definitions, software, hardware, and databases [SOURCE: ISO 17572-1:2015, 2.1.27] 3.21 longitude geodetic longitude angle from the prime meridian plane to the meridian plane of a given point, eastward treated as positive Note 1 to entry: Adapted from EN ISO 19111:2007. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 11 3.22 point zero-dimensional element that specifies a geometric location [SOURCE: ISO 17572-1:2015, 2.1.32] 3.23 point of interest POI specific point location that is thought useful or interesting EXAMPLE A point on the Earth’s representing the location of a monument or of hotels, campsites, fuel stations or any other categories often used in navigation systems. Note 1 to entry: A POI may lie outside the road network. An access point is a point on the road network in order to access this POI. 3.24 polygon planar surface defined by one exterior boundary and zero or more interior boundaries [SOURCE: EN ISO 19136:2009] 3.25 predefined location location using a unique identifier (reference) that is agreed upon in both sender and receiver system to select a location from a set of locations already exchanged Note 1 to entry: Adapted from ISO 17572-1:2015. 3.26 primary point point met last when a linear road section is travelled according to the location direction Note 1 to entry: In case of an affected linear with an event it generally pinpoints the origin of the event (EN ISO 14819-3). 3.27 referent known location from which relative measurement is made along a linear element Note 1 to entry: Adapted from EN ISO 19148:2012. 3.28 secondary point point met first when a linear road section is travelled according to the location direction 3.29 tuple ordered list of values [SOURCE: EN ISO 19136:2009] Note 1 to entry: Considered values are here geodetic coordinates. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 12 4 Symbols and abbreviations For the purpose of this document, the following abbreviations apply throughout the document unless otherwise specified. ALERT-C Alert and problem location for European road traffic, version C C-ITS Cooperative intelligent transport systems DNP Distance to next point FOW Form of way FRC Functional road class GIS Geographic information system GML Geographic markup language GPS Global positioning system ILOC Intersection location NOTE 1
It is the basis of a dynamic referencing system named “ILOC referencing system”, subsequently adopted by TPEG as “TPEG-Loc”. LR Linear referencing LRM Linear referencing method LRP Location reference point OpenLR Open location referencing NOTE 2 It is a trade mark of the TomTom BV company (see http://www.openlr.org). TPEG Transport protocol expert group TPEG2 Transport protocol expert group, generation 2 5 Conformance The DATEX II platform independent data model of which the location referencing packages as well as Predefined Locations Publication sub-model are parts, corresponds to the Level A model as defined in EN 16157-1. Conformance with this Part shall require platform independent models from which platform specific models are generated to comply with the UML modelling rules defined in EN 16157-1 and with the following requirements of this sub-model which are expressed in this Part: — comply with all stipulated minimum and maximum multiplicity requirements for UML elements and relationships; — comply with all definitions, types and ordering; — employ optional elements as specified; — comply with all expressed constraints. It should be noted that conformance of a publication service with all the structural requirements stated above does not necessarily ensure that the informational content of that service will be semantically comprehensible. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 13 6 UML notation The UML notation used in this European Standard shall be as described in ISO/IEC 19505-1. NOTE Some introduction guides to UML 2 are provided in the Bibliography of EN 16157-1:2018. 7 The DATEX II location referencing model 7.1 General 7.1.1 General The normative Annex A provides the data dictionary i.e. a comprehensive view of the different classes, attributes and associations for each package. Each subclause corresponds to a package. The types of attribute and the enumerations specific to this part are defined in the normative Annex A. The XML subschema corresponding to this part of EN 16157 is provided in the normative Annex B. The informative Annex C provides some explanations about the location referencing methods that are relevant for this part of EN 16157, some of them being drawn from approved standards like those on linear referencing or on ALERT-C. 7.1.2 The package “LocationReference” 7.1.2.1 The overall model The package “LocationReference” supplies classes and attributes to the definition of a location locating a traffic object e.g. a situation record in a situation publication. It is pictured including the relationships between the classes in Figure 1. This contributes important information in the different publications derived from the “PayloadPublication” defined in EN 16157-7, bringing information on “where” in each case. SIST EN 16157-2:2019
EN 16157-2:2019 (E) 14
Figure 1 — DATEX II location referencing model SIST EN 16157-2:2019
EN 16157-2:2019 (E) 15 7.1.2.2 Semantics The most generic concept
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