This road sign means: 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 This road sign means: Answers Divided highway begins. A steep grade is ahead. The overpass ahead has a low clearance. Two lanes of traffic moving in opposite directions are about to merge. Explanation This sign warns that the overpass ahead has a low clearance. Do not proceed if your vehicle is taller than the height indicated (in this case, 13 feet, 6 inches).