[P&L Code § PL901]
The rate of speed of engines and cars on all railroads within the limits of the City shall not exceed 40 miles per hour. Any engineer, conductor or other person having charge of any railroad engine, car or train of cars, who shall cause the same to go over or upon any railroad within the limits of the City at a greater speed than 40 miles per hour, shall be deemed guilty of a misdemeanor.