The Utah Traffic Code, Rules of the Road, 1988 edition, as compiled, prepared and published as a code in book form by the Utah Department of Public Safety and the Utah League of Cities and Towns, three (3) copies of which have been filed for use and examination by the public in the Office of the City Recorder, hereby is approved and adopted as the Traffic Code for the City, except as such code may be altered or modified by the ordinances of the City. (1979 Code § 11-321; amd. 1998 Code)