Prototype web GIS for checking structures against aerodrome obstacle limitation surfaces in Kenya.
Personal prototype, not an official KCAA system. Models ICAO Annex 14 Vol I (8th ed.) surfaces — approach, inner approach, transitional, balked-landing, take-off-climb, inner horizontal, conical, outer horizontal — modelled on KCAA advisory circulars AC-AGA005C (June 2024) and AC-AGA032A (Feb 2026). Certificates are demonstration outputs.
Data sources are public inputs only (OpenStreetMap basemap, public aerodrome lists and published ICAO/KCAA surface definitions). Surface geometry follows the ICAO Annex 14 parameters in code and is a demonstration model, not a certified survey.
Version history
- v1 · Jan 2025 — Airport visualisation and query tool (Render)
- v2 · mid-2025 — PostGIS migration and OLS modelling work
- v3 · Present — OLS engine and approval workflow (Cloud Run)