This article focus on how common space area in Japanese intensive care home for elderly is changed in the past 35 years, aims to quantitatively summarize the transition of common space area size from 1978 up to today, so as to provide a reference for common space dimensioning in modern Japanese nursing home including Japanese version of CCRC(Continue care retirement community).
The analysis is done on 79 nursing homes which are selected from Japanese architecture publications. The selection is divided into two groups: the classic nursing home group where the living room is shared by multi beds and nursing care is done in large scale, and the unit care nursing homes group where several private living rooms share a common living space and care service is performed in this unit. The floor plan of each selected nursing home is scanned and imported into AutoCAD by which the AutoCAD area calculation tool is applied to compute the size of each common space area. Further, based on the location and the main function, the common space is divided into three outdoor and six indoor categories, the average area size of each category in per 5 year interval is calculated and grouped into classical care and unit care nursing homes to provide the transition of common space area size of each category in detail in the past 35 years and the comparisons between the two nursing home groups.
The analysis shows that
1. The outdoor common space area was in the uptrend since the year of 2000~2004, and this increase in common space area was mainly contributed by the invest of the roof garden, deck, and balcony, etc.
2. For indoor common space, both the average per resident and the ratio of common space area to total floor area were in the uptrend as well in the past 35 years, they were from 3.2 m
2 in the 1980s to 8.1 m
2 in the year of 2010~2015, and 9.8% to 16.6% respectively.
3. The expansion of restaurant area and physical training facilities, service facilities such as hair salon, coffee shop, and community space were the main factors which contribute to indoor common space area increase. And, compared with the classical care nursing homes, the common space area of the restaurant and physical training room per resident was increased from 4.6 m
2 in classical care nursing home to 6.1 m
2 in unit care nursing home, the community space has also increased from 0.8 m
2 to 1.2 m
2. Especially the transition in community space area size reveals the trend to secure more community space in today's nursing home design.
4. On the other hand, the space of entrance hall and lobby, classroom, and entertaining room, etc. hobby facilities was in downtrend.
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