No person shall drive a vehicle on any street or alley within the city at a greater speed than is reasonable and prudent, having due regard for traffic, the surface and width of the roadway and other conditions then existing. No person shall drive a vehicle on any street or alley at a speed in excess of 30 mph, or such other speed as is posted or as is otherwise provided by law. No person shall drive a vehicle at such a slow rate of speed or in such a manner so as to impede the normal, reasonable, and lawful flow of traffic.
(Prior Code, § 71.01) Penalty, see § 70.99