 Further, the portion of the route east of SR 400 to SR 369 saw 15,690 vehicles per day in 2011, and that tally, combined with the totals seen on SR 369, are an indicator of the use of these two routes as feeder routes onto SR 400 from the east.Seeing decreasing vehicle load numbers, the stretch from SR 369 to Jot Em Down Road tallied 11,480 vehicles, and the final portion to SR 53 had a count of 8,010 vehicles per day.The designation of SR 306 makes its first appearance on Georgia state highway maps in 1957, and only the stretch from the current eastern end of its concurrency with SR 9 (and US 19 at the time) to the route's eastern terminus at SR 53 was in existence.