§ 70.43 SIGNALS OVER REVERSIBLE LANES.
   The meanings of lane-use control signal indications are as follows:
   (A)   A steady downward green arrow. A road user is permitted to drive in the lane over which the arrow signal indication is located.
   (B)   A steady yellow “X”. A road user is to prepare to vacate the lane over which the signal indication is located because a lane control change is being made to a steady red “X” signal indication.
   (C)   A steady white two-way left-turn arrow. A road user is permitted to use a lane over which the signal indication is located for a left turn, but not for through travel, with the understanding that common use of the lane by oncoming road users for left turns also is permitted.
   (D)   A steady white one-way left-turn arrow. A road user is permitted to use a lane over which the signal indication is located for a left turn, without opposing turns in the same lane, but not for through travel.
   (E)   A steady red “X”. A road user is not permitted to use the lane over which the signal indication is located and that this signal indication shall modify accordingly the meaning of other traffic-controls present.
(R.C. § 4511.131)