The public interest, welfare, convenience and necessity require the establishment, maintenance and operation within the city of a transit system for the carrying of passengers. The establishment of such system shall be accomplished by the city entering into an agreement with the cities of Olympia and Tumwater providing for the joining by the city of the Intercity Transit Commission, and further providing for the operation of a transit system by the Intercity Transit Commission in the cities of Olympia, Tumwater and Lacey and such other areas that may be included in the system. (Ord. 264 §1 (part), 1972).