Whenever an official traffic control signal exhibiting an approved Walking Person symbol, an approved Upraised Hand symbol, or the words WALK or WAIT or DON`T WALK is shown concurrently with official traffic control signals exhibiting the words GO or CAUTION or STOP or exhibiting different colored lights successively, one at a time or with arrows, a pedestrian facing those traffic control signals shall obey the Walking Person, Upraised Hand, WALK or WAIT or DON`T WALK control signal as provided in Section 21456.