- Establishment of the master plan for the national airport of the city of Ioannina, (Ministry of the Environment, Physical Planning and Public Works, 1998).
- Impact on air quality in the greater area of Athens from the operation of the Airports Spata and Hellenico, (Airport Athens S. A. 1994).
- Extension of the Milos airport (ENVECO S.A., 1995).
- Extension of the Kefallinia airport (ADK S.A., 1993).
- Extension of the Corfu airport (ADK S.A., 1993).