(1) construction and maintenance of state highways, railroads, and airports including necessary buildings and equipment;

(2) aid to municipalities for the support of class 1, 2, or 3 town highways and bridges;

(3) general administration of the agency, including a grant for pensions;

(4) debt service for principal and interest of highway bonds;

(5) operation of public transit systems, railroads, and airports including administration of appropriate sections of Title 5; and

(6) operation of the department of motor vehicles including administration of Title 23. (Added 1985, No. 269 (Adj. Sess.), § 1.)