Downtown Atlanta drivers can expect delays Thursday evening as an expected 15,000 office workers take to the streets for the annual Kaiser Permanente Corporate Run/Walk. The race begins at 7 p.m. at Turner Field, covering a 3.1 mile course through downtown. Runners and walkers will go north on Hank Aaron Drive and Capitol Avenue to Piedmont Avenue, continuing north on Piedmont to Harris Street. There, the course takes a left turn and goes west to Courtland Street. After turning left on Courtland, runners and walkers will continue south on Courtland to Trinity Avenue, go left on Trinity, then left on Memorial Drive to Hank Aaron Drive, and right on Hank Aaron back to the finish line at Turner Field.