Abstract
This investigation focused on the incentives of residents in going outdoors in their own time, and the time of day when they were outdoors. Surveys were conducted by monitored survey in two multi-storied housing developments over the course of a year. It was observed that residents frequently went outdoors in their own time for a change of environment, as well as after having completed household chores, and when children asked to go outdoors. They went outdoors more frequently when they were not feeling fine than when they were feeling fine. Also, when residents observed from their rooms that it was clear weather, they were likely to go outdoors, and to stay in thermally comfortable places of the outdoors. In autumn and winter those who live in rooms facing east went out more frequently in the morning, while those who live facing west went out more frequently in the afternoon. Residents stayed outdoors an average of 1. 5 to 2 hours a day in all seasons, regardless of the orientation of the room to the sun. It was concluded that the behaviour of residents in going outdoors during their own time was induced by the following factors '. situation, residents moods, livability of the quaters, contrast between living quarters and immediate outdoor environment. The behaviour was adaptive with the self living habits of the residents.