Intelligent transport systems — Geographic Data Files (GDF) GDF5.1 — Part 1: Application independent map data shared between multiple sources

This document specifies the conceptual and logical data model and physical encoding formats for geographic databases for Intelligent Transport Systems (ITS) applications and services. It includes a specification of potential contents of such databases (data dictionaries for Features, Attributes and Relationships), a specification of how these contents shall be represented, and of how relevant information about the database itself may be specified (metadata). The focus of this document is on ITS applications and services and it emphasizes road and road-related information. ITS applications and services, however, also require information in addition to road and road-related information. EXAMPLE 1 ITS applications and services need information about addressing systems in order to specify locations and/or destinations. Consequently, information about the administrative and postal subdivisions of an area is essential. EXAMPLE 2 Map display is an important component of ITS applications and services. For proper map display, the inclusion of contextual information such as land and water cover is essential. EXAMPLE 3 Point-of-Interest (POI) or service information is a key feature of traveller information. It adds value to end-user ITS applications and services. Typical ITS applications and services targeted by this document are in-vehicle or portable navigation systems, traffic management centres, or services linked with road management systems, including public transport systems. The Conceptual Data Model has a broader focus than ITS applications and services. It is application independent, allowing for future harmonization of this document with other geographic database standards.

Systèmes de transport intelligents — Fichiers de données géographiques (GDF) GDF5.1 — Partie 1: Données cartographiques partagées entre sources multiples et indépendantes des applications

General Information

Status
Published
Publication Date
30-Mar-2020
Current Stage
6060 - International Standard published
Start Date
31-Mar-2020
Completion Date
31-Mar-2020
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ISO 20524-1:2020 - Intelligent transport systems -- Geographic Data Files (GDF) GDF5.1
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INTERNATIONAL ISO
STANDARD 20524-1
First edition
2020-03
Intelligent transport systems —
Geographic Data Files (GDF) GDF5.1 —
Part 1:
Application independent map data
shared between multiple sources
Systèmes de transport intelligents — Fichiers de données
géographiques (GDF) GDF5.1 —
Partie 1: Données cartographiques partagées entre sources multiples
et indépendantes des applications
Reference number
ISO 20524-1:2020(E)
ISO 2020
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ISO 20524-1:2020(E)
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© ISO 2020

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

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ii © ISO 2020 – All rights reserved
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ISO 20524-1:2020(E)
Contents Page

Foreword ..................................................................................................................................................................... xxvi

Introduction ............................................................................................................................................................. xxvii

1 Scope ........................................................................................................................................................................... 1

2 Normative references ........................................................................................................................................... 1

3 Terms and definitions .......................................................................................................................................... 2

3.1 General terms .......................................................................................................................................................... 2

3.2 Mathematical terms .............................................................................................................................................. 3

3.3 Geodetical terms .................................................................................................................................................... 5

3.4 GDF terms ................................................................................................................................................................. 6

4 Symbolization and notation elements ............................................................................................................ 9

5 Overall conceptual data model ......................................................................................................................... 9

5.1 Conceptual data models in GDF ........................................................................................................................ 9

5.2 The general data model of GDF ......................................................................................................................... 9

5.2.1 The Feature model .......................................................................................................................................... 9

5.2.2 Graph topology .............................................................................................................................................. 11

5.2.3 Levels in GDF .................................................................................................................................................. 15

5.2.4 Height modelling and time modelling ................................................................................................... 17

5.3 The Attribute model ........................................................................................................................................... 18

5.4 The Relationship model.................................................................................................................................... 21

5.5 Linear referencing .............................................................................................................................................. 21

5.6 The Feature representation scheme ............................................................................................................ 22

5.7 Time modelling .................................................................................................................................................... 22

5.8 Data management: organisation of Feature data into Layers and Sections .................................. 23

6 Feature Catalogue ............................................................................................................................................... 26

6.1 Generic specifications ....................................................................................................................................... 26

6.1.1 Features and Feature Themes.................................................................................................................. 26

6.1.2 Feature Class Codes ..................................................................................................................................... 27

6.1.3 Simple and Complex Features .................................................................................................................. 27

6.1.4 Feature hierarchy ......................................................................................................................................... 27

6.1.5 Data model for the Feature Catalogue .................................................................................................. 27

6.1.6 User-defined Features................................................................................................................................. 27

6.2 Roads and Ferries ............................................................................................................................................... 28

6.2.1 General overview .......................................................................................................................................... 28

6.2.2 Address Area .................................................................................................................................................. 31

6.2.3 Address Area Boundary Element ............................................................................................................ 31

6.2.4 Aggregated Way ............................................................................................................................................ 31

6.2.5 Enclosed Traffic Area .................................................................................................................................. 31

6.2.6 Ferry .................................................................................................................................................................. 32

6.2.7 Ferry Connection .......................................................................................................................................... 32

6.2.8 Interchange ..................................................................................................................................................... 33

6.2.9 Intersection ..................................................................................................................................................... 34

6.2.10 Junction ............................................................................................................................................................ 34

6.2.11 Pathway ............................................................................................................................................................ 35

6.2.12 Road ................................................................................................................................................................... 36

6.2.13 Road Element ................................................................................................................................................. 39

6.2.14 Roundabout .................................................................................................................................................... 41

6.2.15 Topological relations between Junctions, Road Elements, Pathways, Enclosed Traffic

Areas, Ferry Connections and Address Areas Boundary Elements ............................................ 42

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ISO 20524-1:2020(E)

6.3 Administrative Areas ........................................................................................................................................ 44

6.3.1 General overview ......................................................................................................................................... 44

6.3.2 Administrative Area (abstract) ............................................................................................................... 49

6.3.3 Administrative Boundary Element ........................................................................................................ 49

6.3.4 Administrative Boundary Junction ........................................................................................................ 49

6.3.5 Administrative Place (abstract) .............................................................................................................. 49

6.3.6 Administrative Place A to Z ...................................................................................................................... 50

6.3.7 Country ............................................................................................................................................................ 51

6.3.8 Order Area (abstract) ................................................................................................................................. 51

6.3.9 Order-1 to 7 Areas........................................................................................................................................ 51

6.3.10 Order-8 Area .................................................................................................................................................. 51

6.3.11 Order-9 Area .................................................................................................................................................. 52

6.3.12 Supra-National Area .................................................................................................................................... 52

6.4 Named Areas ........................................................................................................................................................ 52

6.4.1 General overview ......................................................................................................................................... 52

6.4.2 Boundaries (abstract) ................................................................................................................................ 52

6.4.3 Boundary Element ....................................................................................................................................... 52

6.4.4 Boundary Junction ....................................................................................................................................... 53

6.4.5 Bounded Area (abstract) ........................................................................................................................... 54

6.4.6 Built-up Area .................................................................................................................................................. 54

6.4.7 Census District............................................................................................................................................... 54

6.4.8 District (abstract)......................................................................................................................................... 54

6.4.9 Electoral District ........................................................................................................................................... 54

6.4.10 Emergency Medical Dispatch District ................................................................................................... 54

6.4.11 Fire Dispatch District .................................................................................................................................. 55

6.4.12 Named Area .................................................................................................................................................... 55

6.4.13 Named Areas (abstract) ............................................................................................................................. 55

6.4.14 Phone District ................................................................................................................................................ 55

6.4.15 Police District ................................................................................................................................................ 55

6.4.16 Postal District ................................................................................................................................................ 55

6.4.17 School District ............................................................................................................................................... 55

6.5 Land Cover And Use ........................................................................................................................................... 56

6.5.1 General overview ......................................................................................................................................... 56

6.5.2 Land Cover Objects (abstract) ................................................................................................................. 56

6.5.3 Building ............................................................................................................................................................ 57

6.5.4 Schematic Building ...................................................................................................................................... 58

6.5.5 Building Unit .................................................................................................................................................. 58

6.5.6 Building Detail ............................................................................................................................................... 58

6.5.7 Town Block ..................................................................................................................................................... 58

6.5.8 Block Detail .................................................................................................................................................... 59

6.5.9 Building Façade ............................................................................................................................................. 59

6.5.10 Sidewalk .......................................................................................................................................................... 59

6.5.11 Island ................................................................................................................................................................ 59

6.5.12 Artificial Surface ........................................................................................................................................... 60

6.5.13 Urban Fabric .................................................................................................................................................. 60

6.5.14 Continuous Urban Fabric .......................................................................................................................... 61

6.5.15 Discontinuous Urban Fabric..................................................................................................................... 61

6.5.16 Industrial, Commercial And Transport Unit ...................................................................................... 62

6.5.17 Industrial Or Commercial Unit ................................................................................................................ 63

6.5.18 Road And Rail Network And Associated Land ................................................................................... 63

6.5.19 Port Area ......................................................................................................................................................... 63

6.5.20 Airport Area ................................................................................................................................................... 63

6.5.21 Mine, Dump And Construction Site ........................................................................................................ 63

6.5.22 Mineral Extraction Site ............................................................................................................................... 64

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6.5.23 Dump Site ........................................................................................................................................................ 64

6.5.24 Construction Site ........................................................................................................................................... 65

6.5.25 Artificial, Non-Agricultural Vegetated Area ........................................................................................ 65

6.5.26 Green Urban Area ......................................................................................................................................... 66

6.5.27 Sport And Leisure Facility ......................................................................................................................... 66

6.5.28 Agricultural Area .......................................................................................................................................... 67

6.5.29 Arable Land ..................................................................................................................................................... 67

6.5.30 Non-Irrigated Arable Land ........................................................................................................................ 68

6.5.31 Permanently Irrigated Land ..................................................................................................................... 68

6.5.32 Rice Field ......................................................................................................................................................... 69

6.5.33 Permanent Crop ............................................................................................................................................ 69

6.5.34 Vineyard ........................................................................................................................................................... 70

6.5.35 Fruit Trees And Berry Plantation ........................................................................................................... 70

6.5.36 Olive Grove ...................................................................................................................................................... 70

6.5.37 Pasture And Rangeland .............................................................................................................................. 70

6.5.38 Pasture.............................................................................................................................................................. 71

6.5.39 Rangeland ........................................................................................................................................................ 71

6.5.40 Heterogeneous Agricultural Area ........................................................................................................... 72

6.5.41 Annual Crop Associated With Permanent Crop ................................................................................. 72

6.5.42 Complex Cultivation Pattern .................................................................................................................... 73

6.5.43 Land Principally Occupied By Agriculture With Significant Area Of Natural

Vegetation ....................................................................................................................................................... 73

6.5.44 Agro-Forestry area ....................................................................................................................................... 73

6.5.45 Forest And Semi-Natural Area ................................................................................................................. 73

6.5.46 Forest ................................................................................................................................................................ 74

6.5.47 Broad-Leaved Forest ................................................................................................................................... 75

6.5.48 Coniferous Forest ......................................................................................................................................... 75

6.5.49 Mixed Forest ................................................................................................................................................... 76

6.5.50 Scrub And/Or Herbaceous Vegetation Association .......................................................................... 76

6.5.51 Natural Grassland ......................................................................................................................................... 77

6.5.52 Moor And Heathland ................................................................................................................................... 77

6.5.53 Sclerophyllous vegetation ......................................................................................................................... 77

6.5.54 Transitional Woodland/Scrub ................................................................................................................. 77

6.5.55 Open Space With Little Or No Vegetation ............................................................................................. 78

6.5.56 Beach, Dune And Sand Plain ..................................................................................................................... 78

6.5.57 Bare Rock ......................................................................................................................................................... 79

6.5.58 Sparsely Vegetated Area ............................................................................................................................ 79

6.5.59 Burnt Area ....................................................................................................................................................... 79

6.5.60 Glacier And Perpetual Snow ..................................................................................................................... 79

6.5.61 Wetland ............................................................................................................................................................ 79

6.5.62 Inland Wetland .............................................................................................................................................. 80

6.5.63 Inland Marsh .................................................................................................................................................. 81

6.5.64 Peatbog ............................................................................................................................................................. 81

6.5.65 Forested Wetland ......................................................................................................................................... 82

6.5.66 Coastal Wetland ............................................................................................................................................ 82

6.5.67 Salt marsh ........................................................................................................................................................ 83

6.5.68 Saline ................................................................................................................................................................. 83

6.5.69 Intertidal flat .................................................................................................................................................. 84

6.6 Terrain Elevation ................................................................................................................................................ 84

6.6.1 General overview .......................................................................................................................................... 84

6.6.2 TIN Surface ...................................................................................................................................................... 87

6.6.3 TIN Triangle .................................................................................................................................................... 87

6.6.4 TIN Node .......................................................................................................................................................... 87

6.6.5 TIN Breakline ................................................................................................................................................. 87

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6.6.6 TIN Stopline .................................................................................................................................................... 87

6.6.7 Contour Line ................................................................................................................................................... 88

6.6.8 Contour Line Area ........................................................................................................................................ 88

6.6.9 Contour Line Point ....................................................................................................................................... 88

6.6.10 Gridded Surface ............................................................................................................................................ 88

6.7 Structures .............................................................................................................................................................. 89

6.7.1 General overview ......................................................................................................................................... 89

6.7.2 Structure .......................................................................................................................................................... 89

6.8 Railways ................................................................................................................................................................. 89

6.8.1 General overview ......................................................................................................................................... 89

6.8.2 Railway Element ........................................................................................................................................... 90

6.8.3 Railway Element Junction ......................................................................................................................... 90

6.9 Waterways ............................................................................................................................................................ 90

6.9.1 General overview ......................................................................................................................................... 90

6.9.2 Canal ................................................................................................................................................................. 91

6.9.3 Coastal Lagoon .............................................................................................................................................. 92

6.9.4 Estuary .......................................................................................

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