Tactile Walking Surface Indicators in the United States and Internationally

Research, Standards, Guidance, and Practice
Source: Administration for Community Living, National Institute on Disability, Independent Living, and Rehabilitation Research (NIDILRR) Grant #90IF0127

The synthesis provides:

  • Background information about early practice and research regarding tactile walking surface indicators (TWSIs).
  • A broad description of current U.S. and international practice.
  • Key US and international research on detectability, discriminability, and visibility of TWSIs in wayfinding applications.
  • A discussion of international standards related to TWSIs, especially ISO 23599 Assistive products for persons with vision impairments and persons with vision and hearing impairments—Tactile walking surface indicators (ISO 2019).
  • A discussion of national standards and practices, particularly pertaining to the U.S., Japan, Canada, Australia, New Zealand, the United Kingdom, Germany, Sweden, and Denmark.

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