---
title: "AIS.TR.360 Obstacle data sets — SPECIFIC REQUIREMENTS FOR THE PROVIDERS OF AERONAUTICAL INFORMATION SERVICES, ATM/ANS · Avioverse"
description: "When obstacle data sets are provided in accordance with point AIS.OR.360:"
url: "https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-the-providers-of/subpart-b/ais-tr-360"
---

# AIS.TR.360 Obstacle data sets

SPECIFIC REQUIREMENTS FOR THE PROVIDERS OF AERONAUTICAL INFORMATION SERVICES · Regulation (EU) 2017/373 · EAR revision 12 Mar 2025

IR Implementing rule

## AIS.TR.360 Obstacle data sets

When obstacle data sets are provided in accordance with point AIS.OR.360:

(a) obstacle data items are features that shall be represented in the data sets by points, lines or polygons;

(b) all defined obstacle feature types shall be provided and each of them shall be described according to the following list of attributes:

(1) area of coverage;

(2) identification of the data originator;

(3) data source identifier;

(4) obstacle identifier;

(5) horizontal accuracy;

(6) horizontal confidence level;

(7) horizontal position;

(8) horizontal resolution;

(9) horizontal extent;

(10) horizontal reference system;

(11) elevation;

(12) vertical accuracy;

(13) vertical confidence level;

(14) vertical resolution;

(15) vertical reference system;

(16) obstacle type;

(17) geometry type;

(18) integrity;

(19) date and time stamp;

(20) unit of measurement used;

(21) lighting; and

(22) marking;

(c) obstacle data for Areas 2 and 3 shall be collected in accordance with the following obstacle collection surfaces:

(1) the Area 2a obstacle collection surface has a height of 3 m above the nearest runway elevation measured along the runway centre line, and for those portions related to a clearway, if one exists, at the elevation of the nearest runway end;

(2) the Area 2b obstacle collection surface has a 1,2 % slope extending from the ends of Area 2a at the elevation of the runway end in the direction of departure, with a length of 10 km and a splay of 15 % to each side; obstacles less than 3 m in height above the ground need not be collected;

(3) the Area 2c obstacle collection surface has a 1,2 % slope extending outside Areas 2a and 2b at a distance of not more than 10 km from the boundary of Area 2a; the initial elevation of Area 2c shall be the elevation of the point of Area 2a at which it commences; obstacles less than 15 m in height above the ground need not be collected;

(4) the Area 2d obstacle collection surface has a height of 100 m above the ground; and

(5) the Area 3 obstacle collection surface extends 0.5 m above the horizontal plane passing through the nearest point on the aerodrome movement area;

(d) in those portions of Area 2 where flight operations are prohibited due to very high terrain or other local restrictions and/or regulations, obstacle data shall be collected and recorded in accordance with the Area 1 numerical requirements;

(e) the obstacle data product specification, supported by geographical coordinates for each aerodrome included within the dataset, shall describe the following areas:

(1) Areas 2a, 2b, 2c and 2d;

(2) the take-off flight path area; and

(3) the obstacle limitation surfaces;

(f) obstacle data sets shall contain the digital representation of the vertical and horizontal extent of the obstacles; and

(g) obstacles shall not be included in terrain data sets.

Obstacle data collection surfaces – Area 1 and Area 2

\[Figure or form omitted from this preview — available in the Avioverse workspace library.]

IR · AIS.TR.360 — Regulation (EU) 2017/373 · Commission Implementing Regulation (EU) 2020/469 · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

GM Guidance material

## GM1 AIS.TR.360(b) Obstacle data sets

ATTRIBUTES

The following additional obstacle feature attributes may be recorded in the obstacle data set:

(a) height;

(b) operations; and

(c) effectiveness.

GM · GM1 AIS.TR.360(b) — Regulation (EU) 2017/373 · ED Decision 2020/008/R · ATM/ANS Easy Access Rules · EAR revision 12 Mar 2025

[All rules in SUBPART B — TECHNICAL REQUIREMENTS FOR PROVIDERS OF AERONAUTICAL INFORMATION SERVICES (AIS.TR)](https://avioverse.aero/regulations/easa/atm-ans/specific-requirements-for-the-providers-of/subpart-b)

Consolidated from the EASA Easy Access Rules (revision 12 Mar 2025, extracted 13 Oct 2026) for convenience. Not the official publication — verify against the Official Journal of the European Union and the EASA publications before operational use.