Ключевые слова: accessibility, along, assistance, blind, cane, closeup, code, difficulty, direction, elderly, feet, flooring, foot, guidance, guide, health, help, identification, indicator, legs, line, mature, mobility, navigation, old, orientation, outdoors, paving, protect, public, safe, safety, see, sidewalk, sight, signs, stick, street, stripes, summer, surface, tactile, textured, tile, touch, vision, walking, warning, woman,