You will choose which part of the project you hear by moving around the site. According to your location, the GPS device launches the sounds, voices and texts. Each soundtrack describes an aspect of the project, associated with a place in the garden : multiplication of attractive means of transportation, vertical development of space, Savage Mountain, Subterranean/Tower, Roller Coaster City, Silence Cabin, Sex Park, Terrorism Museum...
There is no plan, model or drawing representing Potential City. To acquaint oneself with the project, one has to go to the garden of the Forum des Halles and visit a geolocalized sound instalation. The project can not be heard anywhere else that in the place for which it has been conceived.
There is no equipment installed on the territory (no antennas, receivers...). Equipped only with telephones and headphones, the visitors go unnoticed, like a ghostly presence in the city.