Development and evaluation of destination guidance system for visually handicapped people.

In this study a guidance system was made to assist the walking of visually handicapped peoples. It uses FM wave information given by low power transmitters, a solar battery and a commercial portable radio. 14 visually handicapped subjects were tested. The efficacy of guidance information from the system was evaluated in walking experiments for the visually handicapped who can go out alone. It was found that the visually handicapped could understand the guiding information, perceive a psychological map and arrive precisely at their required destination. Analysis of quantification method of the third type (HAYASHI III) using the evaluation of guiding information enabled the classification of subjects into three groups and to show abilities to go out or to walk. For the covering abstract see IRRD E102946.