本文件提供了触觉步行表面指示器（TWSI）的产品规范及其安装建议，以帮助盲人或视力受损者安全、独立地移动。 本文档指定了两种类型的TWSI:注意模式和引导模式。这两种类型都可以在室内和室外的整个建筑环境中使用，如果没有足够的线索进行寻路，或者在特定的危险情况下使用。 注:一些国家根据科学、技术和经验的综合发现，采用了TWSIs的其他设计，以确保大多数用户能够检测到并区分它们。 本文件无意取代此类国家标准、法规或指南中的要求和建议。

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.