(a) No person shall ride a bicycle upon a sidewalk within a business district.
(b) The director of transportation services is authorized to erect official 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.
(c) 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 pedestrian.
(d) No person shall ride a bicycle equipped with a motor on any sidewalk.
(Sec. 15-18.7, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 15, Art. 18, § 15-18.7)