The operator of a motor vehicle upon a highway or street within the city limits upon meeting or overtaking from either direction and on the same roadway any vehicle used and designated as a school bus, which is stopped on the highway or street for the purpose of receiving or discharging any school children, shall stop before reaching such school bus and shall not proceed until such bus resumes motion, or until signaled by the school bus driver to proceed.
(Prior Code, § 73.03) Penalty, see § 70.999