Festinger and his colleagues at MIT clearly showed the influence of the layout of the environment on contacts between people (Festinger et al, 1950). Since their study, a considerable body of research has been conducted that has allowed a number of conclusions to be drawn. Canter (1970) claims that one of the most significant effects of design on behaviour is that of facilitating or discouraging interaction among people. Through planning decisions it is possible to influence patterns of activities, to create better or worse conditions for outdoor events, and to create lively or lifeless environments (Geh], 1987). Geh] remarks that those activities, such as walking, standing, sitting, seeing, hearing, talking, playing or other community activities, which make outdoor residential environments particularly attractive and meaningful to be in communal outdoor spaces are also the most sensitive to the quality of the physical environment.