Pedestrian-control signals.

Whenever pedestrian-control signals exhibiting the words WALK or DONT WALK or exhibiting the symbol of a walking person or an upraised hand are in place, such signals shall indicate as follows: (1) Pedestrians facing a steady WALK indication or a symbol of a walking person may proceed across the roadway in the direction of such signal and shall be given the right-of-way by the drivers of all vehicles; and (2) No pedestrian shall start to cross the roadway in the direction of a DONT WALK indication or a symbol of an upraised hand, but any pedestrian who has partially completed his or her crossing on the WALK or walking person indication shall immediately proceed to a sidewalk or safety island while the flashing DONT WALK or flashing upraised hand indication is showing.