Ohio Revised Code Title XLV. Motor Vehicles Aeronautics Watercraft § 4511.131

(A) A steady downward green arrow means that the lane over which the arrow signal indication is located is open to vehicle travel in that direction.

(B) A steady yellow “X” means that the lane over which the signal indication is located is about to be closed to vehicle traffic in that direction and will be followed by a steady red “X” signal indication, either within the same signal face or in a downstream signal face.

(C) A steady white two-way left-turn arrow means that the lane over which the signal indication is located is open to traffic making a left turn from either direction of travel, but not for through travel.

(D) A steady white one-way left-turn arrow means that the lane over which the signal indication is located is open to traffic making a left turn in that direction, without opposing turns in the same lane, but not for through travel.

(E) A steady red “X” means that the lane over which the signal indication is located is closed to vehicle traffic in the direction viewed by the road user.