Ключевые слова: accident, alert, attention, bold, caution, clarity, color, command, compliance, contrast, control, directive, driving, important, instruction, law, message, minimalistic, neat, notice, octagon, order, organized, prevent, prohibition, public, red, reflective, regulation, road, road safety, safety, shiny, signpost, simplicity, standalone, stop sign, street, street sign, symbol, traffic, traffic control, uniform background, vibrant, visibility, vivid, warning,