Outdoor signage for visually impaired

摘要

Architecturally aesthetic signage having a sufficient hardness that upon interaction with an etchent results in a plurality of smooth tiers or terraces resulting in both visual and tactile indicia for communication with an observer is disclosed. In the preferred embodiment, the tactile and visual indicia comply with the requirements of the Americans for Disabilities Act. The signage is preferably formed by an etcher system including: an etchent delivery; an etchent; a substrate holder; a substrate having sufficient hardness that upon interaction with the etchent produces the visual indicia for communication with an observer; and a controller for controlling the delivery of the etchent onto the substrate to form the signage.