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Deciding, perceiving or searching? If you drive a car, it’s a classic problem on the busy city streets, the search for a parking space. Merely driving in the inner city is a challenging and frustrating affair because it is full of one way streets, dead ends, the visibility of surrounding streets is impeded by buildings and as we drive we are pushed ceaselessly forward from behind by other vehicles. If we pause for thought for more than a second we will be reprimanded by one or more car horns. How it is that masses of us move, as pedestrian or vehicular traffic, in an orderly way through space is also a classic problem for research in psychology, geography and other social sciences. From a distance it seems that the large movements of thousands of vehicles on the road must require explanations arising from another level, a macro-level. From close-by, observing the driver we wonder how they could possibly deal with such a fast complicated environment in their head. How many decisions would they have to make every second? In answering these questions decision-making models of driving and transportation all too often miss the point that getting a hold of a spac