Next, we will present the most common podotactile surfaces and their meanings. Podotactile tiles with parallel. Circles tile-tactile-circles-parallel Source: Londonist Tiles with flat-top reliefs that follow a square pattern are used to indicate that there is a road crossing . Podotactile tiles with circles on bumps tile-tactile. Circles-highlight Source: Quantick Safety System They indicate that there is a train platform ahead. They can also be used to indicate a sudden change in level. Podotactile tiles with transverse lines tile-tactile-stairs Source: Relinea Using these tiles signals. That there are stairs or some other obstacle ahead. They can be at the foot […]