A red light flashes on each corner of this stop sign at the intersections of Ohio 49 and Ohio 707 in rural Mercer County, Ohio, on Sept. 26, 2006. The flashing lights on the stop sign allow it to be seen from greater distances, even in daylight. The intersection had been the scene of numerous accidents. To improve traffic safety without busting their budgets, states are installing the cable barriers, painting distance dots on roads to discourage tailgating and placing stop signs that light up like Christmas trees at dangerous intersections. (AP Photo/Al Behrman)