No person owning or operating a railroad shall cause or allow the whistle of any locomotive engine to be sounded within the city, except necessary brake signals and such as may be absolutely necessary to prevent injury to life and property.
Each locomotive engine shall be equipped with a bell-ringing device which shall at all times be maintained in repair and which shall cause the bell of the engine to be rung automatically. The bell of each locomotive engine shall be rung continuously when such locomotive is running within the city, excepting bells on locomotives running upon railroad tracks enclosed by walls or fences, or enclosed by a wall on one side and public waters on the other side, and excepting bells on locomotives running upon those portions of the railroad track which have been elevated. In the case of these exceptions, no bell shall be rung or whistle blown except as signals of danger.
Every person owning or operating a railroad within the city, shall erect at the point where such railroad enters the city, a signboard, having thereon the words "stop speed", "ring bell", legibly painted thereon, and keep the same so erected.
(Prior code § 188-44)