A red signal with a green arrow shall indicate as follows:
A. Vehicular traffic facing such signal may cautiously enter the intersection only to make the movement indicated by such arrow but shall yield the right-of-way to pedestrians lawfully using the intersection.
B. No pedestrian facing such signal shall enter the roadway unless he can do so safely and without interfering with any vehicular traffic.
(Ord. 321 Art. 2 § 3(d), 1974).