Alaska Stat. § 19.20.030
The department and a municipality may design a controlled-access facility and may regulate, restrict, or prohibit access to best serve the traffic for which the facility is intended. The department and the municipality may divide and separate a controlled-access facility into separate highways by the construction of raised curbings, central dividing sections, or other physical separations, or by designating the separate highways by signs, markers, stripes and the proper lane for traffic by appropriate signs, markers, stripes, and other devices. No person has the right of ingress or egress to, from, or across controlled-access facilities to or from abutting land, except at designated points at which access is permitted, upon the terms and conditions specified from time to time.
AS 19.20.030