etod

Electronic Terrain and Obstacle Data Collection

Origination and Updating of Electronic Aerodrome Obstacle Datasets

Interspect Ltd. performs the remote sensing, geodetic, and geoinformation tasks of the ICAO Annex 15-defined e-TOD ("electronic Terrain- and Obstacle Data collection"), exclusively under the documentation, quality assurance, and legal supervision of our aviation law partner, Erenfield Kft. (https://erenfield.com).

The terrain and obstacle data collection is classified based on the respective surfaces and requirements (Area 1, Area 2a, 2b, 2c, Area 3, and Area 4), delivered with regulatory submission in compliance with statutory requirements, and also provided as an airport geographic information system (GIS) database.

References

Debrecen International Airport (IATA: DEB; ICAO: LHDC), the most important and highest-traffic international aerodrome in Eastern Hungary, operates on the basis of the electronic terrain and obstacle database compiled and systematized by the Interspect - Erenfield group.
Szeged Airport (ICAO: LHUD), a public aerodrome with temporary international border crossing status, has been operational since 1915 and has maintained a reliable obstacle database and aerodrome information system since 2016, courtesy of the Interspect - Erenfield corporate group.
Development of a national etod survey methodology (Middle East)

Publications

Bakó G., Szilágyi Zs., Bagdi Zs., Molnár Zs., Góber E., Molnár A. 2018: The GSD dependency of the etod photogrammetric survey, CEAS Aeronautical Journal (2020) 11:137–143, https://link.springer.com/article/10.1007/s13272-019-00407-z
Bagdi Zs. and Bakó G. 2021: Aerodrome Surveys, Electronic Terrain and Obstacle Data Collection, Repüléstudományi Közlemények, Vol. 32, No. 1, pp. 67–73, Jan. 2021, https://folyoirat.ludovika.hu/index.php/reptudkoz/article/view/689
Bagdi Zs. and Bakó G. 2021: Comparison of ICAO Airport Obstacle Databases by ETOD’s Obstacle Limitation and Collection Surfaces, Modern Environmental Science and Engineering (ISSN 2333-2581) January 2021, Volume 6, No. 1, pp. 39-45 Doi: 10.15341/mese(2333-2581)/01.07.2021/006, http://www.academicstar.us/issueshow.asp?daid=3426
Bagdi Zs., Bakó G., Molnár Zs. 2023: Combined Use of Aerial Remote Sensing and Terrestrial Survey in ICAO etod's Electronic Terrain- and Obstacle Data Collection, Periodica Polytechnica Transportation Engineering, https://doi.org/10.3311/PPtr.20851
National Geographic 2019: Hungarian Successes in Aerodrome Obstacle Surveying
ORIGO Science 2019: Safer Air Transport: Hungarian Successes in Aerodrome Obstacle Surveying

Compilation and Updating of Heliport Obstacle Databases

The compilation of heliport obstacle databases is conducted in the vicinity of the Final Approach and Take-Off Area (FATO) and based on obstacle limitation surfaces. Operations within the approach and take-off zone must be safely executable even in crosswind conditions; therefore, numerous contingencies must be taken into account when defining obstacle limitation surfaces.

Definition of obstacle limitation surfaces in the approach zone of a heliport

For details, please contact our Partner, or reach out to us via any of the contact channels below.