As used in this part, unless the context otherwise requires:
(1) “Municipal street aid fund” means the funds provided for municipalities by §§ 67-3-901 and 67-3-905;
(2) “Municipality” means any incorporated city or incorporated town charged with the duty of constructing and maintaining streets within its corporate boundaries;
(3) “Street” includes streets, highways, avenues, boulevards, publicly owned rights-of-way, bridges, tunnels, public parking areas or other public ways dedicated to public use and maintained for general public travel lying within a municipality's corporate boundaries; and
(4) “Street improvements” means construction, reconstruction, improvement and maintenance of streets, including paving, repaving, grading and drainage, repairs, cleaning, acquisition and maintenance of rights-of-way, extension and widening of existing streets, elimination of railroad grade crossings, acquisition or lease or lease/purchase of trucks or other equipment necessary in the construction and maintenance of streets, including the purchase, construction or leasing of facilities to store the equipment, street lighting, signage and other traffic control devices, and administrative and other necessary expenses, including labor and employee benefits, in connection with the street improvements.