It is unlawful for any person to drive or operate any vehicle equipped with cleated or flanged wheels upon any of the paved streets or alleys of the city, except that it shall be permissible to use tire chains of reasonable proportion upon any vehicle when required for safety because of snow or ice and except that it shall be permissible to use tires with metallic or nonmetallic studs authorized by the State Highway Commission. (Prior Code § 9-104.)