...except after "C"

§ 4168. General speed restrictions.

(a) No person shall drive a vehicle on a highway at a speed greater than is reasonable and prudent under the conditions and without having regard to the actual and potential hazards then existing. In every event, speed shall be so controlled as may be necessary to avoid colliding with any person, vehicle or other conveyance on or entering the highway...

§ 4171. Minimum speed.

(a) No person shall drive a motor vehicle at such a slow speed as to impede the normal and reasonable movement of traffic...

H.T. Faith and Practice
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