The said board of park commissioners or park authorities shall have, in addition to the power conferred, the same power and control of the street or streets, or part or parts thereof, including the regulation of traffic thereon, taken by them as aforesaid, as is now or may be by law vested in them: Provided, that the power and control conferred on the board of park commissioners or park authorities by this act shall not be in limitation or construed to be in limitation of the power of the corporate authorities in the city, town or village to enforce the ordinances thereof within the limits of the street or streets, or parts thereof, taken as aforesaid.
70 ILCS 1265/4