The main objective of the Action was to improve methods and technology related to the coexistence of technical infrastructures and vegetation in European cities, and to prevent potential problems arising from their interaction. Doing so, the Action used an interdisciplinary approach between research and development units working within technology, economics and biology.
The area of research encompassed a planning perspective with the aims of analysing and evaluating the economic and environmental consequences of various methods and technology and preventing the occurrence of problems at the planning and construction stage.
Action members published the results of C15 in different conferences.