The Georgia Department of Transportation is developing an “upgrade plan” for Howard Road at Ga. 365, district spokeswoman Teri Pope said Wednesday. The main improvements under consideration are installation of lighting at and on approaches to the intersection, rumble strips to alert motorists before they reach existing advance-warning beacons, and reflective traffic signal backplates. Also, Pope said, the DOT is mulling “protected” left-turn arrows, which would require motorists to wait for the green arrow to turn.