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Detection of warning surfaces in pedestrian environments: The importance for blind people of kerbs, depth, and structure of tactile surfaces.

Publiceringsår: 2010
Språk: Engelska
Sidor: 469-482
Publikation/Tidskrift/Serie: Disability and Rehabilitation
Volym: 32
Nummer: 6
Dokumenttyp: Artikel i tidskrift
Förlag: Taylor & Francis


Purpose. The overall purpose was to study whether and how persons with blindness detect warning surfaces with a long white cane in a real pedestrian environment after following a natural guidance surface to the warning surfaces. Of particular interest was the importance of kerb, depth, and structure of the warning surfaces. Method. A concurrently mixed methods approach, with a combination of observation using a structured form together with 'think aloud' and a structured interview, was used. It was done with well-defined samples and study sites in an inter-disciplinary research context. Results. The results show that the most important design characteristic for detection of the warning surfaces with a white cane is the structure of the surface, while the depth of the surface and availability of a kerb do not have any impact on the detection. A precondition was that there is a distinct natural guidance surface leading up to the warning surface. Conclusions. The probability among pedestrians with blindness to detect a tactile surface is not higher if the design solution has a kerb. This study also confirms the complexity of being a blind pedestrian in the traffic environment. The results can be used for evidence-based physical planning. The study also has implications for development of more efficient vision rehabilitation.


  • Other Medical Sciences not elsewhere specified


  • Occupational Therapy and Occupational Science
  • ISSN: 0963-8288

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