Does schiphol wants to be a city, more part of it or more like it? The airportcity is something different than a normal city, needs its own concept, but if we want to change Schiphol into a destination or a place to stay it should at first be more like a city.
Schiphol is a place where the infrastructure defines, the company organizes and the government institutionalizes the boundaries. These boundaries hold the possibility to play with the temptation to cross to the other side, the airside, and fly anywhere.
Instead of next to one should be exactly on the borderline. But in order to be able to cross, the borderline should still be apparent. Not completely open, but always in sight, making sure that there is something to cross.
The expansion of the existing terminal creates a strip that crosses the highway and connects the terminal to more landing lanes. The extension is not shaped like a big building, but as urban fabric. Three layers, a mix of programme, the distinction between land- and airside, infrastructure and outside spaces define its shape, like a list of simple ingredients.
The buildings true character reveals itself when used. In the present terminal there is a clear distinction between land- and airside. In the new terminal this division is not made within the terminal, but within every single function. Every piece has both an air and a landside where the border is defined by smaller elements. Instead of having a air and landside, the whole building becomes the grey zone in between.
The air- and the landside will be threads that are completely intertwined, but never really touch each other. Like a DNA string spiralling around each other. With such a feasible border, playing with its tempting nature become a humorous event. The other side is constantly in sight, audible or even tangible.