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Obstacle Compliance & Airport GIS System

Prototype web GIS for checking structures against aerodrome obstacle limitation surfaces in Kenya.

DjangoGeoDjangoPostGISLeafletICAO Annex 14
Obstacle Compliance & Airport GIS System screenshot
Obstacle Compliance & Airport GIS System screenshot

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)

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