§ 2642-q. Track, bridge, signal, station and other facility operation and maintenance. The operation, maintenance and use of track, bridges, signals, freight stations, passenger stations and other facilities shall be public purposes of the authority and the participating counties. The total cost to the authority of operation, maintenance and use of each track, bridge, signal, freight station, passenger station and other facility within the counties of the district located in the state and serviced by one or more railroad facilities of the authority or corporations, including the buildings, appurtenances, platforms, lands and approaches incidental or adjacent thereto, shall be borne by the authority.