No person shall ride or operate a bicycle within a bicycle lane in any direction except that permitted of vehicular traffic traveling on the same side of the roadway; provided that bicycles may proceed either way along a lane where arrows appear on the surface of the lane designating two-way traffic.
(Sec. 15-18.8, R.O. 1978 (1983 Ed.)) (1990 Code, Ch. 15, Art. 18, § 15-18.8)