A. It is unlawful for the operator of a vehicle to emerge from any alley, driveway, building exit, private way or private property or from off of the roadway of any public highway onto the roadway of any public highway or across a sidewalk or into the sidewalk area extending across any such alley, driveway, building exit, private way or private property without bringing such vehicle to a full stop and yielding the right-of-way to all pedestrians, all bicycle traffic and any other traffic upon such sidewalk and to all vehicles, including bicycles, upon the public highway.

B. No vehicle shall back into or out of any alley except when the same is obstructed. (Ord. 3142 § 2, 1982.)