The provisions hereof shall not apply to those railroad tracks where there are established safety gates nor where automatic signals are operating and indicate that the tracks may be crossed safely. All street railway cars and trackless trolleys shall come to a full stop before crossing at grade any track or tracks of a railroad, said full stop to be within 50 feet but not less than 10 feet from the nearest rail of such railroad. While so stopped, the operator of every street railway car or trackless trolley shall listen and look in both directions for any approaching train, engine, or car on said tracks, and for signals indicating the approach of such train, engine or car, and shall not proceed until he can do so safely. Any person violating the provisions of this section shall be subject to a fine of $5 for each and every violation. City Code, 1893, art. 41, §52 1927, art. 89, §66 1950, art. 29, §18 1966, art. 20, §26 1976/83, art. 20, §19 Ord. 1898-186 Ord. 51-1506