Tactile paving, also called tactile ground surface indicators (TGSI), is a system of textured ground surface indicators that are utilized not only to help people with visual disabilities or other impairments be guided and communicate but also to provide tactile stimulation. These patterned paving systems are normally composed of a pattern of raised or lowered puzzle pieces installed on sidewalks, pedestrian crossings, train platforms, and other available public areas. The patterns are detectable by touch and used for conveying crucial information, like directions, danger warnings, and route suggestions. Below are the different types of tactile paving:  Blister or Dot Patterns:...