# Commission Implementing Regulation (EU) 2017/373 of 1 March 2017 laying down common requirements for providers of air traffic management/air navigation services and other air traffic management network functions and their oversight, repealing Regulation (EC) No 482/2008, Implementing Regulations (EU) No 1034/2011, (EU) No 1035/2011 and (EU) 2016/1377 and amending Regulation (EU) No 677/2011 (Text with EEA relevance), Division: AIS.TR.360 Obstacle data sets

Extent: E+W+S+N.I.

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 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.
The following diagram contains a graphical illustration of Area 1 and Area 2 obstacle data collection surfaces and criteria used to identify obstacles in Area 2.
Obstacle data collection surfaces – Area 1 and Area 2

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Source: https://www.legislation.gov.uk/eur/2017/373/annex/VI/division/2/division/Chapter/division/6 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-373/annex-VI/division-2/division-Chapter/division-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.