ISO/DIS 23629-7

UAS traffic management (UTM)

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DRAFT INTERNATIONAL STANDARD
ISO/DIS 23629-7
ISO/TC 20/SC 16 Secretariat: ANSI
Voting begins on: Voting terminates on:
2020-11-24 2021-02-16
UAS traffic management (UTM) —
Part 7:
Data model for spatial data
ICS: 49.020
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ISO/DIS 23629-7:2020(E)
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ISO/DIS 23629-7:2020(E)
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ISO/DIS 23629-7:2020(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

Introduction ..................................................................................................................................................................................................................................v

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

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

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Data model .................................................................................................................................................................................................................. 2

4.1 Overall data model ............................................................................................................................................................................... 2

4.2 Ground Map package ......................................................................................................................................................................... 3

4.2.1 Overview ................................................................................................................................................................................. 3

4.2.2 Attribute of Vertiport ................................................................................................................................................... 3

4.2.3 Attribute of Land .............................................................................................................................................................. 4

4.3 Obstacle Data package ...................................................................................................................................................................... 4

4.3.1 Overview ................................................................................................................................................................................. 4

4.3.2 Attribute of Static Obstacle ..................................................................................................................................... 4

4.3.3 Attribute of Temporal Obstacle ........................................................................................................................... 5

4.4 Virtual Data package .......................................................................................................................................................................... 5

4.4.1 Overview ................................................................................................................................................................................. 5

4.4.2 Attribute of Airspace .................................................................................................................................................... 5

4.4.3 Attribute of Flight Route ........................................................................................................................................... 6

4.4.4 Attribute of Geo-Limitation .................................................................................................................................... 7

4.4.5 Attribute of CNS Coverage ....................................................................................................................................... 7

4.5 Dynamic Data package ..................................................................................................................................................................... 8

4.5.1 Overview ................................................................................................................................................................................. 8

4.5.2 Object sub package ........................................................................................................................................................ 8

4.5.3 Phenomena sub package ........................................................................................................................................... 9

Annex A (informative) Examples of information ..................................................................................................................................11

Annex B (informative) Use Case ..............................................................................................................................................................................12

Bibliography .............................................................................................................................................................................................................................26

© ISO 2020 – All rights reserved iii
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ISO/DIS 23629-7:2020(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards

bodies (ISO member bodies). The work of preparing International Standards is normally carried out

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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of

electrotechnical standardization.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

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This document was prepared by Technical Committee, ISO/TC20, Aircraft and space vehicles,

Subcommittee SC 16, Unmanned aircraft systems.
iv © ISO 2020 – All rights reserved
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ISO/DIS 23629-7:2020(E)
Introduction

In order to enable UAS (Unmanned Aircraft Systems) to operate safely, there is a need to define the data

model that is related to various spatial information for common use between the UAS operators and the

UAS Traffic Management (UTM) system. Existing standards regarding spatial data for safely operating

UAS including static data and dynamic data do not exist, whereas efforts are underway to establish

related standards on the part of ASTM and EUROCAE.

This document can be used as a reference model. Implementations of this specification could lead to cost

reductions in maintenance/expansion for application developers as well as compilation/maintenance

of map data for map providers.
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DRAFT INTERNATIONAL STANDARD ISO/DIS 23629-7:2020(E)
UAS traffic management (UTM) —
Part 7:
Data model for spatial data
1 Scope

This document specifies the data model that is related to various spatial information for common use

between the UAS service provider and the system for operation control, e.g. UTM. The data model

is included in the scope in the way that it specifies the names of the items for the model, while the

communication architecture is not included in the scope.
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.

ISO 21384-4:2020, Unmanned aircraft systems — Part 4: Vocabulary
ISO 19157:2013, Geographic information — Data quality
3 Terms and definitions

For the purposes of this document, the following terms and definitions given in ISO 21384-4 and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
Aerodrome

A defined area on land or water (including any buildings, installations and equipment) intended to be

used either wholly or in part for the arrival, departure and surface movement of aircraft

[SOURCE: ICAO/Annex 2]
3.2
CNS

Communications, navigation, and surveillance systems, employing digital technologies, including

satellite systems together with various levels of automation
[SOURCE: ICAO Doc. 9750]
3.3
elevation

vertical distance of a point or a level, on or affixed to the surface of the earth, measured from mean

sea level
[SOURCE: ICAO/Annex 4]
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ISO/DIS 23629-7:2020(E)
3.4
flight route

specified route designed for channelling the flow of traffic as necessary for the provision of UTM

3.5
geo-Limitation

geo-Limitation is an entity that represents area surrounded by virtual boundary lines in the real world

3.6
height above ellipsoid
HAE

vertical distance of a point or a level, on or affixed to the surface of the earth, measured from WGS 84

ellipsoid
3.7
unmanned aircraft
aircraft which is designed to be operated remotely or autonomously
[SOURCE: ISO 21384-4]
3.8
vertiport

infrastructure or system with supporting services and equipment intended for landing, ground-

handling and take-off of manned or unmanned vertical take-off and landing (VTOL) aircraft.

[SOURCE: ISO 21384-4]
3.9
unmanned aircraft system
UAS
airraft and its associated elements which are operated remotely or autonomously
[SOURCE: ISO 21384-4]
3.10
UTM

UAS Traffic Management is a federated set of services designed to ensure safe, secure and efficient

integration of multiple manned and unmanned aircraft in the airspace in collaboration among all

involved parties
4 Data model
4.1 Overall data model

Overall data model shall consist of four packages: Ground Map package, Obstacle Data package,

Virtual Data package, Dynamic data package. Figure 1 shows overall data model. For the examples of

information, see Annex A. For the use case, see Annex B.

An overall, data quality management system shall prove the data quality in accordance with

ISO 19157:2013.
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ISO/DIS 23629-7:2020(E)
Figure 1 — Overall data model
4.2 Ground Map package
4.2.1 Overview

Ground Map package contains data that are defined as “geographical surface areas (including buildings)

designed for specific activities”. Ground Map package shall as a minimum contain two entities:

Vertiports and Land.
4.2.2 Attribute of Vertiport
Table 1 summarizes minimum attributes of Vertiport.
Table 1 — Attributes of Vertiport
Attribute Description
Identifier Information for identifying the entity
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Available time interval Information indicating the time interval the port is available

Elevation Information indicating the elevation.

Geoid undulation at elevation Information indicating the geoid undulation at elevation

Time zone Information indicating the time zone
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ISO/DIS 23629-7:2020(E)
Table 1 (continued)
Attribute Description
Magnetic variation Information indicating the magnetic variation

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the centre point of the entity in terms of latitudes

and longitudes.

Administration contact details Information indicating the entity’s administration contact details (e.g. ad-

ministration’s name, address, telephone)

Types of UA permitted Information indicating the types of UA (e.g. model, size, weight) the entity

is permitted

Conditions for operation Information indicating the conditions for operation (e.g. unavailable under

wind, rain conditions)

Resources Information indicating the equipment of the entity (e.g. energy supply, re-

pairment, on-site staff)

Availability of emergency landing Information indicating availability of emergency landing

4.2.3 Attribute of Land

Land is an entity that represents artificially divided areas for specific activities in the real world.

Table 2 lists minimum attributes of Land.
Table 2 — Attributes of Land
Attribute Description
Identifier Information for identifying the entity
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Elevation Information indicating the elevation.

Geoid undulation at elevation Information indicating the geoid undulation at elevation

Time zone Information indicating the time zone
Magnetic variation Information indicating the magnetic variation

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the centre point of the entity in terms of latitudes

and longitudes

Availability of emergency landing Information indicating availability of emergency landing

Type of land Information indicating the type of land (e.g. farmland, road, etc.)
4.3 Obstacle Data package
4.3.1 Overview

Obstacle Data package shall contain data that are defined as “tangible objects having a temporarily or

permanently fixed location in the real world”. Obstacle data package shall as a minimum contain two

entities: Static and Temporal Obstacle.
4.3.2 Attribute of Static Obstacle

Static obstacle can be used for buildings, pylons, trees, etc. Table 3 summarizes minimum attributes of

Static Obstacle.
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ISO/DIS 23629-7:2020(E)
Table 3 — Attributes of Static Obstacle
Attribute Description
Identifier Information for identifying the entity
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Height Information indicating the height of the entity’s maximum vertical extent
measured from a specified datum (specified in type of height)
Type of height e.g. AGL, MSL, HAE.

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the centre point of the entity in terms of latitudes

and longitudes

Type of obstacle Information indicating the type of obstacle (e.g. building, tower, pole, anten-

na, etc.)
4.3.3 Attribute of Temporal Obstacle

Temporal can be used for short-term erections or for modifications to a Static obstacle such as

scaffolding. Table 4 summarizes minimum attributes of Temporal Obstacle.
Table 4 — Attributes of Temporal Obstacle
Attribute Description
Identifier Information for identifying the entity
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Height Information indicating the height of the entity’s maximum vertical extent
measured from a specified datum (specified in type of height)
Type of height e.g. AGL, MSL, HAE.

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the centre point of the entity in terms of latitudes

and longitudes

Type of obstacle Information indicating the type of obstacle (e.g. scaffolding, construction

equipment, etc.)
4.4 Virtual Data package
4.4.1 Overview

Virtual Data package shall contain data that are defined as “virtual objects that are intangible

representations (including computer simulated representations) of attributes of particular real-world

areas or objects”. Virtual Data package shall as a minimum contain four entities: Airspace, Flight Routes,

Geo-Limitation, and CNS coverage.
4.4.2 Attribute of Airspace
Table 5 summarizes attributes of Airspace.
Table 5 — Attributes of Airspace
Attribute Description
Identifier Information for identifying the entity
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ISO/DIS 23629-7:2020(E)
Table 5 (continued)
Attribute Description
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Upper limit Information indicating the altitude of the entity's maximum vertical extent

Lower limit Information indicating the altitude of the entity's minimum vertical extent

Type of height e.g. AGL, MSL, HAE.

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the centre point of the entity in terms of latitudes

and longitudes

Administration contact details Information indicating the entity’s administration contact details (e.g. ad-

ministration’s name, address, telephone)

Conditions for operation Information indicating the conditions for operation (e.g. weather conditions,

aircraft performance, operation procedures), either generally applicable to
all operations, or limited to specific operations.

Requirements of UTM Information indicating the requirements of UTM (e.g. sharing of traffic infor-

mation between manned and unmanned aircraft).

Type of airspace Controlled airspace, uncontrolled airspace, authorized airspace, unauthorized

airspace, etc.
4.4.3 Attribute of Flight Route

Table 6 summarizes attributes of flight route. A flight route may have many elements and may also have

a temporal element.
Table 6 — Attributes of Flight Route
Attribute Description
Identifier Information for identifying the entity
Generate time Information indicating the time the entity was generated

Disappearance time Information indicating the time the entity will be disappeared

Upper limit Information indicating the altitude of the entity's maximum vertical extent

Lower limit Information indicating the altitude of the entity's minimum vertical extent

Type of height e.g. AGL, MSL, HAE.

Shape Information indicating the shape and size (e.g. polygon, polyline, polynomial

curve or circle) of the entity

Location Information indicating the vertices or the centre point of the entity in terms of

latitudes and longitudes, where vertices are indicated for polylines, polygons,
and polynomial curves, and the centre point in case of circles.

Sequence of elements Information indicating the sequence of elements the flight route entity entails,

along with a time element if necessary.

Tolerance Information indicating the tolerated deviation from the entity in terms of

dist
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