No person shall ride a bicycle upon a sidewalk within the central traffic district.
The city traffic engineer, with the approval of the city council, is authorized to erect or place signs in any other district on any sidewalk or roadway, and when such signs are in place no person shall disobey the same, Before such a sign is erected or placed, it must be found by the city council, (1) that the riding of bicycles on such sidewalk or roadway will endanger pedestrian traffic or the public safety, or (2) that a property right or interest belonging to the city may be terminated or forfeited if the riding of bicycles on such sidewalk or roadway is not prohibited.
Whenever any person is riding a bicycle upon a sidewalk, such person shall yield the right of way to any pedestrian and shall give audible signal before overtaking and passing such pedestrian.
No person shall ride or operate a bicycle upon any playground, park or school ground, where children are playing, without the permission of the persons having supervision of such playground, park or school ground. (Ord. No. 633, § 2; Ord. No. 717, § 3.)