(a) An eminent domain proceeding by an authority is initiated by the adoption by the executive committee of a resolution, after notice and a hearing, that:
(1) describes the property interest to be acquired by the authority;
(2) declares the public necessity for and interest in the acquisition; and
(3) states that the acquisition is necessary and proper for the construction, extension, improvement, or development of the public transportation system.
(b) A resolution adopted under this section and approved by resolution of the appropriate municipal governing body or commissioners court is conclusive evidence of the public necessity for the acquisition described in the resolution and that the property interest is necessary for public use.