For those who are not familiar with the technical sounding term for something that you see in normal everyday life in the city, tactile pavings, also known as tactile ground surface indicators (TGSI) are:
a system of textured ground surface indicator found on footpaths, stairs and train station platforms to assist pedestrians who are visually impaired
My experience with some of these tactile pavings is that if they are made from certain types of water resistance material (e.g. metal or plastic-like material) then they often become somewhat of a slip hazard when there is a lot of water on the surface (such as when it is raining).
It would seem rather curious that something created to assist pedestrians who are visually impaired would be a potential slip hazard for those who are not visually impaired. This is despite the fact that there are various building or design standards that require the testing of TGSI. However, as can be seen in some discussions online, this is not always the case due to a number of factors.
Is this something that is taken into consideration in the design and development of tactile ground surface indicators? How come people who are visually impaired don't seem to have a problem with this (or maybe they do but are less affected by it)?