Outline of study
Acoustical specifications of auditory guide in public space are investigated. Results of study will be published as MTIL Barrier-free Guidelines, JIS, and ISO.

Outcome of study
- Guidelines to Improve Barrier-Free Access for Public Transport Passenger Facilities, Ministry of Land, Infrastructure and Transport (released June 12, 2013) (in Japanese)
- JIS T 0902:2014 Guidelines for older persons and persons with disabilities - Auditory guides in public space for mobility assist (released May 20, 2014) (in Japanese)
- ISO 19029:2016 Accessible design - Auditory guiding signals in public facilities (released February 1, 2016)