geocat.ch
Cadastre of obstacle limitation surfaces
Obstacle limitation surfaces are a series of three-dimensional surfaces that delimit the obstacle-free airspace generally required for flight safety. Objects that penetrate these limitation surfaces are referred to as aeronautical obstacles. The aim is to protect the airspace from obstacles so that safe flight operations can be guaranteed.
The obstacle limitation surfaces cadastre (OLS) is an official determination of the obstacle limitation surfaces for an airfield, an air traffic control facility or a flight path. The Federal Office of Civil Aviation (FOCA) maintains this cadastre for civil installations. This maps all types of three-dimensional obstacle limitation surfaces in accordance with ICAO Annex 14 in a structured and unambiguous manner.
The layer only contains data that is approved and conforms to the model.
Simple
- Alternate title
-
Obstacle limitation surfaces
- Date (Publication)
- 2024-03-13
- Date (Revision)
- 2025-11-05
- Identifier
- ch.bazl.hindernisbegrenzungsflaechen-kataster
- Purpose
-
Geodata on federal law
- Status
- On going
Point of contact
Owner
- Spatial representation type
- Vector
- Spatial representation type
- TIN
Spatial resolution
Equivalent scale
- Denominator
- 5000
Spatial resolution
Equivalent scale
- Denominator
- 25000
- Topic category
-
- E Planning cadastre
Extent
Extent
- Description
-
Switzerland
))
Extent
Extent
- Description
-
Liechtenstein
))
- Maintenance and update frequency
- As needed
- Duration of Conservation
- 10
- Comment on Duration of Conservation
-
Zur Bestimmung von bewilligungspflichten Objekten
- Appraisal of Archival Value
- A
- Reason for Archiving Value
- Evidence of business practice
- Comment on Archival Value
-
Behördenverbindlich, Historisierung
Resource format
- Title
-
INTERLIS 2 (XTF)
- Date
- GEMET
-
-
airport
-
air traffic
-
civil air traffic
-
- geocat.ch
-
-
air navigation obstacle
-
airfield
-
official geodata
-
air navigation
-
Conservation and archiving planning AAP - Confederation
-
opendata.swiss
-
FSDI Federal Spatial Data Infrastructure
-
Resource constraints
- Use constraints
- Other restrictions
- Other constraints
- Opendata BY: Open use. Must provide the source.
- Other constraints
Associated resource
- Title
-
Hindernisbegrenzungsflächen-Kataster
- Association Type
- Reference to a master resource of which this one is a part
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Subtopic Category
- E1 Spatial Planning, Spatial Development
- Basic Geodata
- true
- Basic Geodata ID
-
106.1
- Basic Geodata Legal Level
- Federal
- Distribution format
-
-
INTERLIS 2 (XTF)
-
OGC Geopackage (GPKG)
-
Digital transfer options
Digital transfer options
- OnLine resource
-
Vorschau map.geo.admin.ch
Preview map.geo.admin.ch
Digital transfer options
Digital transfer options
- OnLine resource
-
RESTful API von geo.admin.ch
Digital transfer options
Digital transfer options
Digital transfer options
- OnLine resource
-
ch.bazl.hindernisbegrenzungsflaechen-kataster
Link to WMS
Digital transfer options
- Geometric object type
- Surface
- Reference system identifier
- EPSG: 2056
Metadata
- Metadata identifier
- 87c13b99-b1a0-4822-a923-42f63067d48d
- Language
- Deutsch
- Character encoding
- UTF8
- Language
- Français
- Character encoding
- UTF8
- Language
- Italiano
- Character encoding
- UTF8
- Language
- English
- Character encoding
- UTF8
- Language
- Rumantsch
- Character encoding
- UTF8
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
-
https://www.geocat.ch/geonetwork/srv/api/records/87c13b99-b1a0-4822-a923-42f63067d48d
- Date info (Creation)
- 2011-11-14T14:45:02Z
- Date info (Revision)
- 2026-04-13T09:38:42.960551Z
Metadata standard
- Title
-
eCH-0271
