(1) This part shall be construed liberally to effectuate the legislative intent and the purpose of this part as complete and independent authorization for the performance of each and every act and thing authorized in this part and all powers granted in this part shall be broadly interpreted to effectuate the intent and purposes of this part and not as a limitation of powers.

  (2) The powers conferred in this part upon a street railway shall be in addition to any other powers the street railway possesses under law.

  (3) Unless permitted by the state constitution of 1963 or this part or agreed to by a street railway, any restrictions, standards, conditions, or prerequisites of a city, village, or township otherwise applicable only to a street railway and enacted after January 12, 2009 do not apply to a street railway. This subsection is intended to prohibit special local legislation or ordinances applicable exclusively or primarily to a street railway and not to exempt a street railway from laws generally applicable to other persons or entities.