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Navigation Data Standard
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Navigation Data Standard format specification
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Navigation Data Standard
Format Specification
NDS Version 2.1.1.9 and 2.1.1.10.1 - 2.1.1.10.6
(Preliminary Release)
Intellectual Property Rights Navigation Data Standard – Format Specification
2
Copyright 2012 © - NDS e.V. All Rights Reserved.
No part of this document may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm,
without permission in writing from the author.
Intellectual Property Rights
This document of a specification is released by the Navigation Data Standard (NDS) e.V., in the
following called NDS e.V. It is released as a development partnership and intended for the
purpose of information only. The NDS e.V. will not be liable for any use of this specification.
Following the completion of the development of the Navigation Data Standard PSF
specifications, commercial exploitation licenses will be made available to end users by way of
written License Agreement only.
Navigation Data Standard PSF and the associated specification documents are subject to
change and are continually updated as the development of Navigation Data Standard PSF
progresses. The responsibility for maintaining and interpreting the Navigation Data Standard
PSF specification documents lies with the bodies of the NDS e.V. Navigation Data Standard PSF
development is driven by a well-defined process for releasing documented versions of the
standard.
No part of this document shall be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing
from NDS e.V.
Specification documents for the Navigation Data Standard PSF may contain exemplary items
(exemplary reference models, “use cases”, and/or references to exemplary technical solutions,
devices, processes or software). Any such exemplary items are contained in the specification
documents for illustration purposes only, and they themselves are not part of Navigation Data
Standard PSF. Neither their presence in such specification documents, nor any later
documentation of standard conformance of products actually implementing such exemplary
items, imply that intellectual property rights covering such exemplary items are licensed under
the same rules as applicable to Navigation Data Standard PSF.
Navigation Data Standard PSF is under constant development. For this reason, the description
in this document may deviate from the physical implementation. If this is the case, the physical
implementation in DataScript shall prevail.
Copyright © 2012 – Navigation Data Standard (NDS) e.V. All Rights Reserved.
Document version 2.2 (based on NDS versions 2.1.1.9 and 2.1.1.10.1 - 2.1.1.10.6)
Navigation Data Standard – Format Specification Table of Contents
Copyright 2012 © - NDS e.V. All Rights Reserved.
No part of this document may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm,
without permission in writing from the author.
3
Table of Contents
1 About this Document . . . . . . . . . . . . . . . . . . . .19
1.1 Document History . . . . . . . . . . . . . . . . . . . . . . 19
1.2 Purpose and Subjects . . . . . . . . . . . . . . . . . . . . . 36
1.3 Target Audience . . . . . . . . . . . . . . . . . . . . . . . 38
1.4 NDS Documentation Overview . . . . . . . . . . . . . . . . . . 38
1.5 Use of Modal Verbs . . . . . . . . . . . . . . . . . . . . . . 39
1.6 Typographical Conventions . . . . . . . . . . . . . . . . . . . 40
2 Introduction to Navigation Data Standard . . . . . . . . . . . . .41
3 Architecture . . . . . . . . . . . . . . . . . . . . . . . .43
3.1 NDS Database and Its Interfaces . . . . . . . . . . . . . . . . . 43
3.2 NDS Database Structure . . . . . . . . . . . . . . . . . . . . 44
3.2.1 Product Database . . . . . . . . . . . . . . . . . . . . . . 45
3.2.2 Update Region . . . . . . . . . . . . . . . . . . . . . . . 45
3.2.3 Building Block . . . . . . . . . . . . . . . . . . . . . . . . 46
3.2.4 Levels . . . . . . . . . . . . . . . . . . . . . . . . . . 47
3.3 Database Content . . . . . . . . . . . . . . . . . . . . . . 49
3.3.1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . 49
3.3.2 Attributes . . . . . . . . . . . . . . . . . . . . . . . . . 52
3.3.3 Metadata . . . . . . . . . . . . . . . . . . . . . . . . . 53
3.4 Introduction to NDS DataScript . . . . . . . . . . . . . . . . . . 53
3.5 Extending the Navigation Data Standard. . . . . . . . . . . . . . . 55
4 Database Structure . . . . . . . . . . . . . . . . . . . . .59
4.1 Product Database Table . . . . . . . . . . . . . . . . . . . . 59
4.2 NDS Database Supplier Table . . . . . . . . . . . . . . . . . . 61
4.3 Data Model Version Table. . . . . . . . . . . . . . . . . . . . 62
4.4 Overall Metadata Table . . . . . . . . . . . . . . . . . . . . 62
4.5 Structure, Data, and Metadata of Product Databases . . . . . . . . . . 62
4.5.1 Update Region Table . . . . . . . . . . . . . . . . . . . . . 65
4.5.2 Building Block Table. . . . . . . . . . . . . . . . . . . . . . 65
4.5.3 Update Region Building Block Version Table . . . . . . . . . . . . . 66
4.5.4 Version Table . . . . . . . . . . . . . . . . . . . . . . . . 67
4.5.5 Building Block Component Version Table . . . . . . . . . . . . . . 68
4.5.6 Language Table . . . . . . . . . . . . . . . . . . . . . . . 70
4.6 Logical Mapping of Tables to Building Blocks . . . . . . . . . . . . . 72
5 Overall Building Block: Update Region Metadata . . . . . . . . . .73
5.1 Level Metadata . . . . . . . . . . . . . . . . . . . . . . . 73
Table of Contents Navigation Data Standard – Format Specification
4
Copyright 2012 © - NDS e.V. All Rights Reserved.
No part of this document may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm,
without permission in writing from the author.
5.2 Region Metadata . . . . . . . . . . . . . . . . . . . . . . . 74
5.2.1 Flexible Attribute Maps . . . . . . . . . . . . . . . . . . . . . 76
5.3 Region-specific Descriptive Names of Selection Criteria . . . . . . . . . . 76
5.4 Road Number Class Prefix Table . . . . . . . . . . . . . . . . . . 77
5.5 Additional Icons . . . . . . . . . . . . . . . . . . . . . . . 78
5.6 Address Format . . . . . . . . . . . . . . . . . . . . . . . 79
5.7 Region-specific Profiles . . . . . . . . . . . . . . . . . . . . . 79
5.8 Time Zones . . . . . . . . . . . . . . . . . . . . . . . . . 79
6 Attributes . . . . . . . . . . . . . . . . . . . . . . . . 81
6.1 Attribute Groups . . . . . . . . . . . . . . . . . . . . . . . 81
6.2 Attribute Layers . . . . . . . . . . . . . . . . . . . . . . . 82
6.3 Attribute Points and Shape Points . . . . . . . . . . . . . . . . . 83
6.4 References between Attributes and Features . . . . . . . . . . . . . 85
6.5 Common Attributes . . . . . . . . . . . . . . . . . . . . . . 86
7 Partitioning of Geographic Data . . . . . . . . . . . . . . . . 89
7.1 WGS 84 and EGM96 . . . . . . . . . . . . . . . . . . . . . . 89
7.2 Coding of Coordinates . . . . . . . . . . . . . . . . . . . . . 89
7.3 Tiling Scheme . . . . . . . . . . . . . . . . . . . . . . . . 92
7.3.1 Tiles and Levels . . . . . . . . . . . . . . . . . . . . . . . 93
7.3.2 Tiles and Clipping . . . . . . . . . . . . . . . . . . . . . . . 96
7.3.3 Content Indices for Update Regions . . . . . . . . . . . . . . . . 99
8Encryption . . . . . . . . . . . . . . . . . . . . . . . . 101
8.1 Scope of Encryption . . . . . . . . . . . . . . . . . . . . . 101
8.1.1 Database File Encryption . . . . . . . . . . . . . . . . . . . 102
8.1.2 Encryption of Data BLOBs . . . . . . . . . . . . . . . . . . . 103
8.2 Cipher Algorithm . . . . . . . . . . . . . . . . . . . . . . 103
8.3 Cipher Key Info Structure . . . . . . . . . . . . . . . . . . . 104
8.4 Encryptable Item Code . . . . . . . . . . . . . . . . . . . . 105
8.5 Decryption . . . . . . . . . . . . . . . . . . . . . . . . 105
9 Routing Building Block . . . . . . . . . . . . . . . . . . . 107
9.1 Building Block Structure and Content . . . . . . . . . . . . . . . 108
9.2 Link Feature Class . . . . . . . . . . . . . . . . . . . . . . 113
9.2.1 Base Links . . . . . . . . . . . . . . . . . . . . . . . . 114
9.2.2 Route Links . . . . . . . . . . . . . . . . . . . . . . . . 115
9.2.3 Attributes of Link Features. . . . . . . . . . . . . . . . . . . 117
9.2.4 Road Geometry for Link Features . . . . . . . . . . . . . . . . 120
9.2.5 References of Link Features . . . . . . . . . . . . . . . . . . 120
9.2.6 References of Route Links . . . . . . . . . . . . . . . . . . . 122
9.3 Road Geometry Line Feature Class . . . . . . . . . . . . . . . . 122
Navigation Data Standard – Format Specification Table of Contents
Copyright 2012 © - NDS e.V. All Rights Reserved.
No part of this document may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm,
without permission in writing from the author.
5
9.3.1 Attributes of Road Geometry Line Features. . . . . . . . . . . . . . 123
9.3.2 Drawing Order of Road Geometry Line Features . . . . . . . . . . . . 125
9.3.3 References of Road Geometry Line Features . . . . . . . . . . . . . 125
9.4 Intersection Feature Class. . . . . . . . . . . . . . . . . . . . 126
9.4.1 Position . . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.4.2 Transitions . . . . . . . . . . . . . . . . . . . . . . . . . 127
9.4.3 Number of Links . . . . . . . . . . . . . . . . . . . . . . . 127
9.4.4 Attributes of Intersection Features . . . . . . . . . . . . . . . . 127
9.4.5 References of Intersection Features . . . . . . . . . . . . . . . . 128
9.5 References of Routing Features . . . . . . . . . . . . . . . . . . 128
9.5.1 Inter-Tile References . . . . . . . . . . . . . . . . . . . . . 128
9.5.2 Inter-Building Block References . . . . . . . . . . . . . . . . . . 129
9.5.3 Inter-Level References . . . . . . . . . . . . . . . . . . . . . 132
9.6 Data Structures for Advanced Driver Assistance (ADAS) . . . . . . . . . 134
9.6.1 Attributes for ADAS . . . . . . . . . . . . . . . . . . . . . . 134
9.6.2 Enhanced ADAS Geometry . . . . . . . . . . . . . . . . . . . 137
9.6.3 Enhanced ADAS Attributes for Elevation Profiles . . . . . . . . . . . . 143
9.6.4 Enhanced ADAS Geometry Information for Intersection Features . . . . . . 145
9.7 Generic Profile Attributes . . . . . . . . . . . . . . . . . . . . 145
9.7.1 Flexible Attributes for Speed Profiles . . . . . . . . . . . . . . . . 146
9.7.2 Example . . . . . . . . . . . . . . . . . . . . . . . . . . 147
9.7.3 Discrete Cosine Transformation. . . . . . . . . . . . . . . . . . 149
9.8 Address Points . . . . . . . . . . . . . . . . . . . . . . . 151
9.9 Data Structures for Eco Routing. . . . . . . . . . . . . . . . . . 151
9.9.1 Eco Routing Metadata . . . . . . . . . . . . . . . . . . . . . 153
9.9.2 Consumption Speed Curve . . . . . . . . . . . . . . . . . . . 154
9.9.3 Speed Variation . . . . . . . . . . . . . . . . . . . . . . . 157
9.9.4 Slope . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
10 Name Building Block . . . . . . . . . . . . . . . . . . . . 163
10.1 Building Block Structure and Content . . . . . . . . . . . . . . . . 164
10.2 Named Object Features . . . . . . . . . . . . . . . . . . . . 167
10.2.1 Attributes of Named Object Features . . . . . . . . . . . . . . . . 171
10.2.2 Relations between Named Object Features. . . . . . . . . . . . . . 173
10.2.3 References to Next-valid-character Trees . . . . . . . . . . . . . . 176
10.3 Name String Features . . . . . . . . . . . . . . . . . . . . . 177
10.3.1 Attributes of Name String Features . . . . . . . . . . . . . . . . 177
10.4 Selection Graphs . . . . . . . . . . . . . . . . . . . . . . . 182
10.5 Selection Criteria . . . . . . . . . . . . . . . . . . . . . . . 184
10.6 Next-valid-character Trees . . . . . . . . . . . . . . . . . . . 186
10.6.1 Selection Graphs and NVC Trees . . . . . . . . . . . . . . . . . 187
10.6.2 Structure of NVC Trees . . . . . . . . . . . . . . . . . . . . . 189
10.6.3 Disambiguation in NVC Trees . . . . . . . . . . . . . . . . . . 192
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