(a) In coordinating the statewide transportation planning, the existing authority and responsibilities of local governing bodies, the Arkansas Public Service Commission, and the Arkansas Transportation Commission [abolished], as provided in § 23-2-201 et seq., shall not be abridged or abrogated.
(b)
(1) In the area of marine and aviation facilities and services, it is the intent of this chapter that the various state and local airport commissions and the Arkansas Waterways Commission's authority, powers, and responsibilities shall remain intact.
(2) However, the various state and local airport commissions and the Arkansas Waterways Commission shall inform the Arkansas Department of Transportation of their plans in order that total transportation planning can be achieved and made available for incorporation in a comprehensive growth plan for the state.