Ключевые слова: access, area, awareness, bar, caution, circle, clarity, communication, control, darkness, design, direction, driving, entry, environment, geometry, illuminated, infrastructure, lighted, measure, night, nighttime, outdoor, planning, prohibition, public, red, regulations, regulatory, restriction, road, rules, safety, sign, signage, signal, space, standards, street, symbol, symbols, traffic, transportation, urban, vehicle, visibility, warning, white,