ISO 23599:2019
(Main)Assistive products for blind and vision-impaired persons — Tactile walking surface indicators
Assistive products for blind and vision-impaired persons — Tactile walking surface indicators
This document provides product specifications for tactile walking surface indicators (TWSIs) and recommendations for their installation in order to assist in the safe and independent mobility of blind or vision-impaired persons. This document specifies two types of TWSIs: attention patterns and guiding patterns. Both types can be used indoors and outdoors throughout the built environment where there are insufficient cues for wayfinding, or at specific hazards. NOTE Some countries have adopted other designs of TWSIs based on the consolidated findings of science, technology and experience, ensuring that they can be detected and distinguished by most users. This document is not intended to replace requirements and recommendations contained in such national standards, regulations or guidelines.
Produits d'assistance pour personnes aveugles ou visuellement affaiblies — Indicateurs tactiles de surfaces de marche
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Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 23599
Second edition
2019-01
Assistive products for blind and
vision-impaired persons — Tactile
walking surface indicators
Produits d'assistance pour personnes aveugles ou visuellement
affaiblies — Indicateurs tactiles de surfaces de marche
Reference number
ISO 23599:2019(E)
©
ISO 2019
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ISO 23599:2019(E)
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© ISO 2019
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Published in Switzerland
ii © ISO 2019 – All rights reserved
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ISO 23599:2019(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General provisions. 3
4.1 General principles . 3
4.2 Detecting and distinguishing TWSIs . 4
4.2.1 General. 4
4.2.2 Tactile contrast . 4
4.2.3 Visual contrast . 4
4.2.4 Design for prevention of tripping . 4
5 Requirements and recommendations. 4
5.1 Specifications for shape and dimensions of TWSIs . 4
5.1.1 General. 4
5.1.2 Attention patterns . 5
5.1.3 Guiding patterns . . 6
5.2 Surrounding or adjacent surfaces .10
5.3 Visual contrast .10
5.3.1 General.
...
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