Abstract
This study conducts verification experiments for a minimum measurement of restrooms for large-sized wheelchair users in a public toilet. From our inquiry, one of the most difficult task to a large-sized wheelchair user in a public restroom is to make a favorable approach to the toilet seat which requires switchback motions.
This verification experiments suggested that the space should be at least 90×170cm to 110×150cm in front of a toilet seat, and this would make more flexibility about designing a public toilet for large-sized wheelchair users, especially in renovating old facilities.
