The increasing use of cell-phones also affects the behaviour of users in the public domain.
The effects of events or occurrences in public space, such as train delays, traffic jams, accidents, sport events do not have an influence on real space.CALL-A-WALL detects via receivers at the particular site the amount of GSM-use. This information is transformed into different colour schemes. This will be displayed by LED-spots attached to walls, ceilings and floors. Thereby the effect of social behaviour on cell-phone-use will be visualized.