COLUMBUS, Ohio, Feb. 3 (UPI) -- People underestimate the length of the white dashed lines painted down the middle of a road indicating that many drive too fast, a U. S. researcher said. Study leader ...

How long are the dashed lines that are painted down the middle of a road? Most people answer, "two feet." The real answer is 10 feet. That's the federal guideline for every street, highway, and rural ...