The addition of Braille to signs will help and considerably improve the confidence of the visually impaired person. However, in smokey conditions (which is often the reason for an urgent exit) everyone is likely to become visually impaired.
Dense smoke tends to rise and therefore the perceived solution is to place signs and way guidance system (SWG’s) at lower levels. Some of these systems can be supplemented by a tactile enhancement, comprehensible to those unfamiliar with Braille (see our Telscape solutions). |