A. Reasonable And Proper:
1. Notwithstanding a maximum speed limit enumerated in this section, no person shall drive a vehicle upon any alley, highway, roadway, street or public parking area at a speed greater than or less than is reasonable or prudent under the conditions then existing, considering visibility, amount of traffic, condition of roadway surface, presence of pedestrians, obstruction of view and other similar facts.
2. No person shall drive any vehicle upon a street at a speed greater than will permit him to bring it to a stop within the assured clear distance ahead.
B. Speed Limits Established:
1. Generally: Except when a special hazard exists that requires lower speed for compliance with subsection A of this section, the limits specified in this section or established as authorized shall be maximum lawful speeds. No person shall drive a vehicle on a highway at a speed in excess of such maximum limits as follows:
a. Twenty five (25) miles per hour on any street in a residential district, except as may be posted otherwise and except on state or federal highways; and
b. Miles per hour as posted in school zones when school is in session.
2. Authority To Alter Speed Limits: The mayor has authority to post lower speed limits than those prescribed in this section where special hazards exist.
C. Duty To Decrease Speed: The fact that the speed of a vehicle is lower than the designated limits shall not relieve the driver from the duty to decrease speed when approaching and crossing an intersection, when approaching and going around a curve, when approaching a hill crest, when traveling upon any narrow winding roadway, or when a special hazard exists with respect to pedestrians or other traffic, or by reason of weather or highway conditions, and speed shall be decreased as may be necessary to avoid colliding with any person or vehicle or on entering the roadway in compliance with legal requirements and the duty of all persons to use due care and precaution. (1992 Code § 15-701)
D. Minimum Speed: It is unlawful for any person to drive a motor vehicle at such slow speed as to impede or block the normal and reasonable movement of traffic, except when reduced speed is necessary for safe operation. Police officers are hereby authorized to enforce this subsection by directions to drivers, and in the event of wilful disobedience to this provision or refusal to comply with the direction of an officer in accordance herewith, the continued slow operation by a driver shall be unlawful and constitute a blocking of traffic and a violation of this subsection. (1992 Code § 15-702)