Haw. Rev. Stat. § 264-41
There is established a state highway system which shall consist of federal-aid highways and other public highways which may be designated for inclusion in the system pursuant to section 264-42.
[L 1965, c 159, pt of §1; Supp, §111-51; HRS §264-41]
A public highway is not a state highway unless it is designated for inclusion in the state highway system. 2 H. App. 387, 633 P.2d 1118 (1981).