A. The chief of police is authorized to have erected signs on any sidewalk or roadway prohibiting the riding of bicycles thereon by any person, and when such signs are in place, no person shall disobey the same.

B. Whenever any person is riding a bicycle upon a sidewalk, such person shall yield the right-of-way to any pedestrian and shall give an audible signal before overtaking and passing such pedestrians. (Ord. 271 §1 (part), 1973).