Services / Aerodrome Safeguarding
Aerodrome Safeguarding & Obstacle Analysis
ICAO Annex 14 obstacle limitation surfaces (OLS), PANS-OPS protection surfaces and 3D obstacle penetration analysis for aerodromes.
ICAO Annex 14 obstacle limitation surfaces (OLS), PANS-OPS protection surfaces and 3D obstacle penetration analysis for aerodromes.
We help airports and CAAs protect aerodromes through ICAO Annex 14 OLS modelling, obstacle limitation surface aerodrome assessments and 3D obstacle analysis. ASIT checks proposed buildings, cranes and turbines against configured surfaces and supports a traceable construction review. See our automatic obstacle analysis, safeguarding software and CAA request widget.
We are at the forefront of the transition to the OFS (Obstacle Free Surface) and OES (Obstacle Evaluation Surface) dual concept, a mandatory requirement for many aerodromes by 2030. Our tools already support these advanced evaluations alongside traditional OLS, including curved approach, departure and transitional surface geometry for aerodrome, heliport, and vertiport safeguarding.
When an obstacle penetrates a limiting surface, a technical solution is required. We conduct comprehensive aeronautical studies to assess the actual hazard posed by the penetration and propose effective mitigation strategies.
ASIT streamlines safeguarding from surface creation to reporting: it identifies site coordinates and terrain height, checks obstacles against OLS and PANS-OPS surfaces, calculates penetrations and generates authorisation reports. Airports and CAAs can move construction queries into a repeatable digital workflow, with decision rules configured to their process.