What does this sign mean? Do you currently have car insurance? Insurance is mandatory to drive in Ohio Yes I have insurance. But please show me your best quotes. No, please help me find the best insurance. Question What does this sign mean? Answers No U-turn permitted. No left turn permitted. Traffic must go straight. Yield. Explanation U-turns are prohibited where this sign is posted. This questions appears in the following tests: Rhode Island Motorcycle Practice Test 21