ITS geographic data (ISO TC 204 WG 3)¶
Domain of interest¶
Regarding geographic data used in ITS, the purpose of WG3 is to specify features, attributes, and relationships of static and dynamic data.
WG3 activities include developing standards for:
- Architecture for geographic data;
- Conceptual data model for geographic data;
- Logical data model for geographic data;
- Exchange format between map data providers;
- Location referencing methodology;
- Application programming interface for geographic databases;
- Framework for shareable geospatial databases;
- Application programming interface for centre-to-map updates.
Geographic Data Files¶
Overview¶
GDF5.1 (the ISO 20524 series) is an evolution of GDF5.0 that introduces the concept of Shareable Features, takes cooperative ITS (Cooperative ITS) needs into account and is harmonized with the European public transportation standard EN 12896:2012 (Transmodel). This last harmonization was made in the framework of the European Optimise Citizen Mobility and Freight Management in Urban Environments (OPTICITIES) project.
ISO 20524-1:2020 Intelligent transport systems — Geographic Data Files (GDF) GDF5.1 — Part 1: Application independent map data shared between multiple sources
Status: Approved
Abstract: GDF5.1 consists of two parts:
- GDF5.1 Part 1 (this document) contains GDF5.0 specification except Public Transport Theme specification which has been revised and is now described in Part 2.
- GDF5.1 Part 2 (ISO 20524-2:2020) is dedicated to Shareable Features, Cooperative ITS and Public Transport.
Description:
This document presents the specification for GDF5.1 Part 1. GDF5.0 entities are unchanged but Public Transport Theme entities have been removed and corresponding sections and figures are deprecated and refer to GDF5.1 Part 2 (ISO 20524-2:2020). In order to ensure the consistency between GDF5.0 and GDF5.1 Part 1 (this document), the numbering of common figures in both versions has been conserved. GDF5.1 Part 1 (this document) is divided into several parts.
GDF5.1 Part 1 (this document) is divided into several parts, including:
- Conceptual Data Model
- Feature Catalogue
- Attribute Catalogue
- Relationship Catalogue
- Feature representation rules
- Appendices A-H
The actual contents of GDF, apart from a minimum set of metadata elements as specified in the delivery formats, is not specified by this document.
This document allows the introduction of user-defined Features, Attributes and Relationships.
Relationships to other standards:
GDF5.0 entities are unchanged but Public Transport Theme entities have been removed and corresponding sections and figures are deprecated and refer to GDF5.1 Part 2 (ISO 20524-2:2020).
ISO 20524-2:2020 Intelligent transport systems — Geographic Data Files (GDF) GDF5.1 — Part 2: Map data used in automated driving systems, Cooperative ITS, and multi-modal transport
Status: Approved
Abstract: GDF5.1 consists of two parts:
- GDF5.1 Part 1 (ISO 20524-1:2020) contains GDF5.0 specification except Public Transport Theme specification which has been revised and is now described in Part 2.
- GDF5.1 Part 2 (this document) is dedicated to Shareable Features, Cooperative ITS and Public Transport.
Description:
This document presents the specification for GDF5.1 Part 2 and is divided into several parts, including:
- Conceptual Data Model
- Feature Catalogue
- Attribute Catalogue
- Relationship Catalogue
- Feature representation rules
- Appendices A-I
Relationships to other standards:
Navigation Data Delivery and Structures and Protocols¶
ISO 24099:2011 Navigation data delivery structures and protocols
Status: Approved
Abstract: This International Standard was developed in relation to growing market demand for dynamic update services for map-related data in navigation systems.
Description:
Map-related data includes not only feature geometry and attributes but also point of interest (POI) data such as hotels, restaurants, and dynamic content such as traffic, weather, movie schedules, parking availability, etc. Currently, most map data updates are provided on physical media whose map data content begins aging rapidly once it is delivered to the user. In the future, it is anticipated that the transmission of these data will most often, but not exclusively, be via wireless means. The advantage of wireless data delivery is that it simplifies the distribution logistics thereby accelerating the ability of a consumer to receive fresher data. This International Standard facilitates the potential for on-demand updates of on-board map databases. Further, the updates do not necessarily require the replacement of an entire map database. Rather, the updates can be limited to a portion of a dataset or a specific list of attributes or POI changes can also be provided.
Relationships to other standards:
External References¶
The European Union- ITS Communications & Information Protocols (EU-ICIP) is a significant resource of ITS standards, and its Road Traffic Data, Geographic and Spatial Data page is of particular relevance to this WG's work.