So I was wondering can reasonable and prudent be redefined by the defendant in court?
I remember reading something about obtaining traffic surveys?
Here is the law that I have found:
28-701. Reasonable and prudent speed; prima facie evidence; exceptions
A. A person shall not drive a vehicle on a highway at a speed greater than is reasonable and prudent under the circumstances, conditions and actual and potential hazards then existing. A person shall control the speed of a vehicle as necessary to avoid colliding with any object, person, vehicle or other conveyance on, entering or adjacent to the highway in compliance with legal requirements and the duty of all persons to exercise reasonable care for the protection of others.
B. Except as provided in subsections C and D of this section or except if a special hazard requires a lesser speed, any speed in excess of the following speeds is prima facie evidence that the speed is too great and therefore unreasonable:
1. Fifteen miles per hour approaching a school crossing.
2. Twenty-five miles per hour in a business or residential district.
3. Sixty-five miles per hour in other locations.
C. The speed limits prescribed in this section may be altered as authorized in sections 28-702 and 28-703.
D. The maximum speed provided in this section is reduced to the speed that is reasonable and prudent under the conditions and with regard to the actual and potential hazards then existing, including the following conditions:
1. Approaching and crossing an intersection or railroad crossing.
2. Approaching and going around a curve.
3. Approaching a hillcrest.
4. Traveling on a narrow or winding roadway.
5. A special hazard exists with respect to pedestrians or other traffic or by reason of weather or highway conditions.
E. A person shall not drive a motor vehicle at a speed that is less than the speed that is reasonable and prudent under existing conditions.
Where in sections A and E are the definitions? Part above says “compliance with legal requirements” but I don’t find any other listings at least for in city driving in Section 28 of the ARS???
28-707. Charging speed violation; burden of proof; findings
A. In a charge of violating a speed restriction in this article, the complaint and the summons or notice to appear shall specify the speed at which the defendant is alleged to have driven and the maximum speed applicable within the district or at the location.
B. The provision of this article declaring maximum speed limitations does not relieve the plaintiff in any civil action, other than a civil action to impose a civil penalty, from the burden of proving negligence on the part of the defendant as the proximate cause of an accident.
C. If a person is charged with a criminal offense, except for excessive speed under section 28-701.02, or cited for a civil traffic violation under this article and if the person is operating a commercial motor vehicle as defined in section 28-3001, the court, on conviction of the offense or on adjudication of the civil traffic complaint, shall make a finding based on either an admission or the evidence as to whether the speed that the vehicle was operated was fifteen miles per hour or more over the speed limit.
B Seems interesting though I may not understand what is is really saying.
28-703. Alteration of speed limits by local authority
A. If a local authority determines on the basis of an engineering and traffic investigation that the maximum speed permitted under this article is greater or less than is reasonable or safe under the conditions found to exist on any part of a street or highway in its jurisdiction, the local authority may determine and declare a reasonable and safe maximum speed limit at the location and, based on the investigation, may:
1. Decrease the limit at intersections.
2. Increase the limit within any business or residence district to not more than sixty-five miles per hour.
3. Decrease the limit outside any business or residence district.
4. Increase or decrease the limit on streets adjacent to school grounds.
B. A local authority shall determine by an engineering and traffic investigation the proper maximum speed for all arterial streets in its jurisdiction and shall declare a reasonable and safe maximum limit on the arterial streets in its jurisdiction that may be more or less than the maximum speed permitted under this article for a business or residence district.
C. A local authority may decrease the limit to not less than fifteen miles per hour on an unpaved street or road within any district in its jurisdiction if the local authority determines that the limit is necessary to achieve or maintain national ambient air quality standards.
D. An altered limit established as provided for in this section is effective at all times, or during hours of darkness, or at other times as may be determined if appropriate signs giving notice of the altered limit are erected on the street or highway.
E. The alteration of maximum speed limits on state highways or extensions of state highways in a municipality by a local authority is not effective until the director approves the alteration.
F. A local authority shall not make more than six alterations per mile along a street or highway pursuant to this section, except for reduced limits at intersections. The difference between adjacent limits shall not be more than ten miles per hour except for school crossings.

