Ключевые слова: access, background, business, city, concept, corporate, crossing, decline, direction, down, downstairs, entrance, exit, failure, icon, info, information, man, notice, notification, passage, pedestrian, people, person, platform, public, road, safety, sign, signboard, signpost, sky, staircase, stairs, stairway, station, step, street, subway, symbol, traffic, transition, transportation, underpass, urban, walk, warning, way,