ISO 14825:2004

INTERNATIONAL ISO
STANDARD 14825
First edition
2004-02-15
Intelligent transport systems —
Geographic Data Files (GDF) — Overall
data specification
Systèmes de transport intelligents — Fichiers de données
géographiques — Spécification des données globales

Reference number
©
ISO 2004
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ii © ISO 2004 – All rights reserved

Contents Page
Foreword. xxv
Introduction . xxvi
1 Scope. 1
2 Normative references. 1
3 Terms and definitions. 1
3.1 General terms. 1
3.2 Mathematical terms. 4
3.3 Geodetical terms. 5
3.4 GDF Terms. 6
4 Symbols (and abbreviated terms) . 9
5 Overall Conceptual Data Model . 9
5.1 Data Models in GDF . 9
5.2 The overall Data Model of GDF. 9
5.2.1 The Feature Model . 9
5.2.2 Levels in GDF . 11
5.2.3 Graph topology supported by this International Standard. 11
5.3 The basic building blocks of topological features in a GDF: Nodes, Edges and Faces . 14
5.4 The basic building blocks of non-explicit topological features in a GDF: Dots, Polylines
and Polygons. 14
5.5 The Attribute Model. 14
5.6 The Relationship Model. 15
5.7 The Feature Representation Scheme. 16
5.8 Data Management. 17
6 Feature Catalogue. 18
6.1 Generic Specifications. 18
6.1.1 Features and Feature Themes . 18
6.1.2 Feature Class Codes. 18
6.1.3 Simple and Complex Features. 18
6.1.4 Feature hierarchy. 18
6.1.5 Data Model for the Feature Catalogue . 18
6.1.6 User-defined Features. 18
6.2 Roads and Ferries. 19
6.2.1 General Overview. 19
6.2.2 Address Area. 21
6.2.3 Address Area Boundary Element. 21
6.2.4 Aggregated Way. 21
6.2.5 Enclosed Traffic Area. 21
6.2.6 Ferry. 22
6.2.7 Ferry Connection. 22
6.2.8 Interchange. 23
6.2.9 Intersection. 23
6.2.10 Junction. 23
6.2.11 Road. 25
6.2.12 Road Element. 29
6.2.13 Roundabout. 30
6.2.14 Topological relations between Junctions, Road Elements, Enclosed Traffic Areas, Ferry
Connections and Address Areas . 30
6.3 Administrative Areas. 33
6.3.1 General Overview. 33
6.3.2 Administrative Boundary Element. 34
6.3.3 Administrative Boundary Junction.34
6.3.4 Administrative Place A to Z.35
6.3.5 Country.35
6.3.6 Order-1 to 7 Areas .35
6.3.7 Order-8 Area.36
6.3.8 Order-9 Area.36
6.3.9 Supra-National Area.36
6.4 Named Areas.36
6.4.1 General Overview.36
6.4.2 Boundary Element.36
6.4.3 Boundary Junction.37
6.4.4 Built-up Area.37
6.4.5 Census District.38
6.4.6 Elective District.38
6.4.7 Emergency Medical Dispatch District .38
6.4.8 Fire Dispatch District .38
6.4.9 Named Area.38
6.4.10 Phone District.38
6.4.11 Police District.38
6.4.12 Postal District.39
6.4.13 School District.39
6.5 Land Cover And Use .39
6.5.1 General Overview.39
6.5.2 Building.40
6.5.3 Artificial Surface.40
6.5.4 Urban Fabric.41
6.5.5 Continuous Urban Fabric .41
6.5.6 Discontinuous Urban Fabric .41
6.5.7 Industrial, Commercial And Transport Unit.41
6.5.8 Industrial Or Commercial Unit .42
6.5.9 Road And Rail Network And Associated Land.42
6.5.10 Port Area.42
6.5.11 Airport.43
6.5.12 Mine, Dump And Construction Site.43
6.5.13 Mineral Extraction Site.43
6.5.14 Dump Site.44
6.5.15 Construction Site.44
6.5.16 Artificial, Non-Agricultural Vegetated Area .44
6.5.17 Green Urban Area.44
6.5.18 Sport And Leisure Facility.45
6.5.19 Agricultural Areas.45
6.5.20 Arable Land.45
6.5.21 Non-Irrigated Arable Land.46
6.5.22 Permanently Irrigated Land.46
6.5.23 Rice Field.46
6.5.24 Permanent Crop.47
6.5.25 Vineyard.47
6.5.26 Fruit Trees And Berry Plantation.47
6.5.27 Olive Grove.48
6.5.28 Pasture And Rangeland.48
6.5.29 Pasture.48
6.5.30 Rangeland.48
6.5.31 Heterogeneous Agricultural Area.49
6.5.32 Annual Crop Associated With Permanent Crop.49
6.5.33 Complex Cultivation Pattern .49
6.5.34 Land Principally Occupied By Agriculture, With Significant Area Of Natural Vegetation.49
6.5.35 Agro-Forestry area.50
6.5.36 Forest And Semi-Natural Area .50
6.5.37 Forest.50
6.5.38 Broad-Leaved Forest.51
iv © ISO 2004 – All rights reserved

6.5.39 Coniferous Forest. 51
6.5.40 Mixed Forest. 51
6.5.41 Scrub And/Or Herbaceous Vegetation Association . 52
6.5.42 Natural Grassland. 52
6.5.43 Moor And Heathland. 52
6.5.44 Sclerophyllous vegetation. 53
6.5.45 Transitional Woodland/Scrub. 53
6.5.46 Open Space With Little Or No Vegetation . 53
6.5.47 Beach, Dune And Sand Plain. 54
6.5.48 Bare Rock. 54
6.5.49 Sparsely Vegetated Area. 54
6.5.50 Burnt Area. 54
6.5.51 Glacier And Perpetual Snow. 54
6.5.52 Wetland. 54
6.5.53 Inland Wetland. 55
6.5.54 Inland Marsh. 55
6.5.55 Peatbog. 56
6.5.56 Forested Wetland. 56
6.5.57 Coastal Wetland. 56
6.5.58 Salt marsh. 57
6.5.59 Saline. 57
6.5.60 Intertidal flat. 57
6.5.61 Island. 57
6.6 Structures. 58
6.6.1 General Overview. 58
6.6.2 Structure. 58
6.7 Railways. 58
6.7.1 General Overview. 58
6.7.2 Railway Element. 58
6.7.3 Railway Element Junction. 58
6.8 Waterways. 59
6.8.1 General Overview. 59
6.8.2 Canal. 60
6.8.3 Coastal Lagoon. 60
6.8.4 Estuary. 61
6.8.5 Inland Water. 61
6.8.6 Lake. 61
6.8.7 Marine Water. 61
6.8.8 Reservoir. 61
6.8.9 River. 61
6.8.10 Sea And Ocean. 62
6.8.11 Water Body. 62
6.8.12 Water Boundary Element . 62
6.8.13 Water Boundary Junction . 62
6.8.14 Water Course. 63
6.9 Road Furniture. 63
6.9.1 General Overview. 63
6.9.2 Environmental Equipment. 63
6.9.3 Signpost. 63
6.9.4 Traffic Light. 64
6.9.5 Traffic Sign. 64
6.9.6 Lighting. 64
6.9.7 Measurement Device. 65
6.9.8 Road Markings. 65
6.9.9 Safety Equipment. 65
6.9.10 Pedestrian Crossing. 65
6.10 Services. 66
6.10.1 General Overview. 66
6.10.2 Entry Point of Service. 66
6.11 Public Transport. 67
6.11.1 General Overview.67
6.11.2 Line.68
6.11.3 Public Transport Junction.68
6.11.4 Public Transport Point.69
6.11.5 Route.69
6.11.6 Route Link.69
6.11.7 Stop Area.69
6.11.8 Stop Point.69
6.12 Chainage Referencing Features .70
6.12.1 General Overview.70
6.12.2 Chainage Referencing Section.71
6.12.3 Reference Point.72
6.13 General Features.72
6.13.1 General Overview.72
6.13.2 Centre Point of Feature.72
6.13.3 Traffic Location.73
7 Attribute Catalogue.73
7.1 Generic Specifications.73
7.1.1 Attribute Types.73
7.1.2 Attribute Values.73
7.1.3 Attribute Type Name .73
7.1.4 Simple Attributes, Composite Attributes and Sub-Attributes .73
7.1.5 Composite attributes combined with the restrictive sub-attribute Validity Direction.74
7.1.6 Composite attributes combined with the restrictive sub-attribute Lane Dependent Validity .75
7.1.7 Composite attributes combined with the restrictive sub-attribute Street Side .75
7.1.8 Composite attributes combined with the restrictive sub-attribute Validity Period .76
7.1.9 Composite attributes combined with the restrictive sub-attribute Vehicle Type .76
7.1.10 Names in combination with a Language Code.77
7.1.11 Default Attribute Values.77
7.1.12 Relation between attributes and features: Segmented Attributes .77
7.1.13 Attributes of General Features.79
7.1.14 Attributes of Relationships .79
7.1.15 Attribute Type Codes .79
7.1.16 User-defined Attributes.79
7.1.17 The Data Model for Attributes .79
7.2 Attributes for multiple Feature Themes .87
7.2.1 Alternate Name.87
7.2.2 Alternate Name Body.88
7.2.3 Alternate Name Text.88
7.2.4 Association Type.89
7.2.5 Chainage.89
7.2.6 Common Language.89
7.2.7 Containment Type.90
7.2.8 Currency.90
7.2.9 Display Class.90
7.2.10 Exit Number.91
7.2.11 External Identifier.91
7.2.12 Multi Media Action.91
7.2.13 Multi Media Description.91
7.2.14 Multi Media File Attachment Name.92
7.2.15 Multi Media File Attachment Type .92
7.2.16 Multi Media Time Domain .93
7.2.17 Multi-Media File Attachment.93
7.2.18 Multi-Media File Attachment Context .94
7.2.19 Name Component.94
7.2.20 Name Component Length.95
7.2.21 Name Component Offset .95
7.2.22 Name Component Type .95
7.2.23 Name Prefix.96
vi © ISO 2004 – All rights reserved

7.2.24 Official Code. 96
7.2.25 Official Language. 96
7.2.26 Official Name. 96
7.2.27 Official Name Body . 97
7.2.28 Official Name Text. 97
7.2.29 Opening Period. 98
7.2.30 Place within Place Classification . 98
7.2.31 Population. 98
7.2.32 Population Class. 99
7.2.33 Positional Accuracy. 99
7.2.34 Postal Code. 99
7.2.35 Street Side. 99
7.2.36 Toll. 100
7.2.37 Toll Charge. 100
7.2.38 Validity Direction. 101
7.2.39 Validity Period. 101
7.3 Attributes for Roads and Ferries. 101
7.3.1 Accident. 101
7.3.2 Accident Date. 102
7.3.3 Accident Identifier. 102
7.3.4 Address Information. 102
7.3.5 Alternate Name. 103
7.3.6 Alternate Name Body. 103
7.3.7 Alternate Name Text. 103
7.3.8 Alternate Street Name. 103
7.3.9 Alternate Street Name Body. 104
7.3.10 Alternate Street Name Text . 104
7.3.11 Average Vehicle Speed. 105
7.3.12 Blocked Passage. 105
7.3.13 Blocked Passage Location. 105
7.3.14 Blocked Passage Type. 106
7.3.15 Chainage. 106
7.3.16 Chainage Offset. 106
7.3.17 Composite Exit Number . 107
7.3.18 Composite Form of Way. 107
7.3.19 Composite Intersection Type. 107
7.3.20 Composite Pronunciation. 108
7.3.21 Construction Status. 108
7.3.22 Currency. 108
7.3.23 Direction of Traffic Flow. 108
7.3.24 Directional Prefix. 108
7.3.25 Directional Suffix. 108
7.3.26 Display Class. 108
7.3.27 Divided Road Element . 108
7.3.28 Divider. 109
7.3.29 Divider Type. 109
7.3.30 Divider Width. 110
7.3.31 Emergency Vehicle Lane. 110
7.3.32 Enclosed Traffic Area Type. 110
7.3.33 Exit Number. 111
7.3.34 External Identifier.
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