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To meet the demands of an aging society, researches for intelligent/robotic wheelchairs have been receiving a lot of attention. In elderly care facilities, care workers are required to have a communication with the elderly in order to maintain their both mental and physical health. While this is regarded as important, a conversation with someone on a wheelchair while pushing it from his/her behind in a traditional setting would interfere with their smooth and natural conversation. Based on these concerns we are developing a robotic wheelchair which allows companions and wheelchair users move in a natural formation. This paper reports on an investigation how human behaves when the wheelchair users and their companions communicate while moving together.

Formations for Facilitating Communication Among Robotic Wheelchair Users and Companions