The driver in a single-car accident Thursday afternoon on Ga. 211/Old Winder Highway was flown to Grady Memorial Hospital in Atlanta, according to Sgt. Stephen Wilbanks with the Hall County Sheriff’s Office.A van left the road, traveling down an embankment near Stillwater, a spokesman with the Georgia State Patrol said.The patrol received the call about 1:30 p.m. The identity is not being released at this time.