The state road commissioner is authorized to so design any controlled-access facility and to so regulate, restrict or prohibit access as to best serve the traffic for which such facility is intended. In this connection the commissioner is authorized to divide and separate any controlled-access facility into separate roadways by the construction of raised curbings, central dividing sections, or other physical separations, or by designating such separate roadways by signs, markers, or stripes, and the proper lane for such traffic by appropriate curbs, barriers, signs, markers, stripes or other devices. No person shall have any right of ingress or egress to, from, or across controlled-access facilities to or from abutting lands, except at such designated points at which access may be permitted, upon such terms and conditions as may be specified by the commissioner.