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 ...

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.

Solid white lines are also painted on dramatic road curves to prevent blind ... Vehicles with the dashed line on their side of the middle yellow lines may pass if safe to do so.

You are driving along the road when the dotted white line that has been your companion - separating your car from oncoming traffic - suddenly disappears. One theory is that you will slow down ...