Floodable ecological park, ecological corridor from the Seine to the plateau (Hautil forest), rainwater management, improvement of the quality of Seine water (depollution, oxygenation, creation of spawning areas), alternative management of rainwater in the public space (ecological fountain with wind turbines, living basins and streams, fish ladders, public ecological swimming pool).

Shared gardens, urban furniture and innovative games, sports fields, sports courses, etc., reasoned and agricultural management of large spaces (picking, creation of biomass).