UPDATE: Traffic is reported to be moving normally again through the area.
Roanoke County emergency dispatchers confirm that crews have responded to a tractor-trailer accident on Windy Gap Mountain, the stretch of State Route 116 south of Roanoke that has seen several such accidents in past years. It is a hilly and winding stretch of roadway not well-suited to trucks, so much so that tractor-trailers are banned from using it, and there are signs posted in each direction specifically alerting truck drivers to the prohibition. VDOT officials have said in the past that truckers nonetheless head that way at times because many GPS devices will suggest that routing.