Haw. Rev. Stat. § 291C-193
Every person driving a moped upon a roadway shall be granted all of the rights and shall be subject to all of the duties applicable to the driver of a vehicle under this chapter, except as to the special provisions of this part and except as to those provisions of this chapter which by their nature can have no application.
[L 1978, c 175, pt of §15]
Traffic laws apply to persons driving mopeds, see §291-13.