Sign 151 shows an overturned vehicle and warns of an accident on the road ahead. Sign 150, with the exclamation mark, warns of another danger. Sign 107 shows a winding road, and sign 127 shows a line of cars and warns of heavy traffic. Warning signs give notice in advance, so that you approach with caution.
Topic: Traffic signs. The bank marks it for these classes: Light truck (C1), Heavy truck (C), Bus (D), Motorcycle (A), Tractor (1), Private car (B).