(A) No person shall operate a bicycle at a speed greater than is reasonable and prudent under the conditions then existing.
(B) If any person riding a bicycle on any street or sidewalk under such conditions as may interfere with the safety of such person or any pedestrian, or any other vehicle, then the operator of the bicycle shall dismount and walk through such district or area.
('88 Code, Title X, Ch. 128, § 10.64)