No person owning or operating a railroad, locomotive, or train shall cause or allow the whistle of any locomotive engine to be sounded within the city unnecessarily. No person owning or operating a railroad shall cause or allow the bell of any locomotive engine to be rung unnecessarily or continuously when the locomotive is stationary or when the locomotive or train does not enter or pass over a street intersection.
(Prior Code, § 77.10) Penalty, see § 76.999