Ключевые слова: blind, blindness, detectable, difficulty, direction, disability, disabled, disoriented, flooring, guide, handicapped, help, identification, impaired, impairment, independent, indicator, man, mark, mobility, navigate, navigation, orientation, outdoor, outdoors, pavement, paving, pedestrian, person, physical, problems, public, see, sensory, sidewalk, sign, strip, surface, symbol, tactile, texture, tiled, touch, vision, walk, walking, walkway, way, yellow,