Ключевые слова: 50, caution, circle, circular, clouds, confinement, countryside, fifty, german, green, green corridor, highway, information sign, landscape, limit, limitation, limited, maximum speed, nature, number, red, regulation, regulations, regulatory sign, restriction, road, road sign, round, shadow, shield, sign, sky, speed, speed limit, speed limit sign, street, streetsign, tempo, traffic, traffic laws, traffic regulation, traffic rules, traffic sign, transportation, tree, warning sign, white,