Outdoor behavior at ten row-house districts in Osaka was investigated in 1973, 1985 and 2000, respectively, by behavior mapping method for five or seven times per a day of weekday. As the results, 1) the number of inhabitants engaging outdoor activities, in particularly children's play, in 1985 and in 2000 as well dramatically decreased than that of 1973; 2) comparison between 1985 and 2000 revealed that four districts out of ten were keeping similar and/or more active in 2000; 3) the increase in these districts was observed in some kinds of activities, such as house-keeping, baby sitting, chat and maintenance of outdoor space, namely street cleaning, plant trimming, and watering; and finally 4) walking was observed in wide streets or passing-through streets in any districts, but in the case of staying behavior, the correlated spatial conditions varied district to district.
