40-14-5.
(a) Each state, county, municipal, or campus law enforcement officer using a
radar device shall test the device for accuracy and record and maintain the
results of the test at the beginning and end of each duty tour. Each such test
shall be made in accordance with the manufacturer´s recommended procedure. Any
radar unit not meeting the manufacturer´s minimum accuracy requirements shall be
removed from service and thereafter shall not be used by the state, county,
municipal, or campus law enforcement agency until it has been serviced,
calibrated, and recertified by a technician with the qualifications specified in
Code Section 40-14-4.
(b) Each county, municipal, or campus law enforcement officer using a radar
device shall notify each person against whom the officer intends to make a case
based on the use of the radar device that the person has a right to request the
officer to test the radar device for accuracy. The notice shall be given prior
to the time a citation and complaint or ticket is issued against the person and,
if requested to make a test, the officer shall test the radar device for
accuracy. In the event the radar device does not meet the minimum accuracy
requirements, the citation and complaint or ticket shall not be issued against
the person, and the radar device shall be removed from service and thereafter
shall not be used by the county, municipal, or campus law enforcement agency
until it has been serviced, calibrated, and recertified by a technician with the
qualifications specified in Code Section 40-14-4.
40-6-183.
(a) Whenever the governing authority of an incorporated municipality or
county, in its respective jurisdiction, determines on the basis of an
engineering and traffic investigation that the maximum vehicle speed permitted
under this chapter is greater than is reasonable and safe under the conditions
found to exist upon a highway or part of a highway under its jurisdiction,
such authority may determine and declare a reasonable and safe maximum vehicle
speed limit thereon which:
(1) Decreases the limit at intersections;
(2) Decreases the limit outside an urban or residential district, but not to
less than 30 miles per hour;
(3) Decreases the limit within an urban or residential district, but not to
less than 25 miles per hour; or
(4) Decreases any speed limit where a special hazard or condition exists that
requires lower speed for compliance with Code Section 40-6-180.
(b) Such an authority in its respective jurisdiction shall determine by an
engineering and traffic investigation the proper maximum speed for all
arterial streets and shall declare a reasonable and safe maximum speed limit
thereon which may be greater or less than the maximum speed permitted under
this chapter for an urban district, but in no case shall the maximum be
established at higher than 55 miles per hour.
(c) Any altered limit established as authorized in this Code section shall be
effective at all times or during hours of darkness or at other times as may be
determined when appropriate signs giving notice thereof are erected upon such
street or highway.
(d) Not more than six alterations as authorized in this Code section shall be
made per mile along a street or highway, except in the case of reduced limits
at intersections. The difference between adjacent limits shall not be more
than ten miles per hour, except for reductions for school speed zones, which
may be not more than 20 miles per hour when a warning sign is placed 700 feet
in advance of the point at which the speed reduction is required.
40-6-182.
Whenever the commissioner of public safety or the commissioner of
transportation shall determine upon the basis of an engineering and traffic
investigation that any maximum speed set forth in this article is greater or
less than is reasonable or safe under the conditions found to exist at any
intersection or other place or upon any part of the state highway system, they
may jointly determine and declare a reasonable and safe maximum speed limit at
such place, which shall be effective when appropriate signs giving notice
thereof are erected. Such a maximum speed limit may be declared to be
effective at all times as are indicated upon such signs; and differing limits
may be established for different times of day, different varying weather
conditions, and other factors bearing on safe speeds, which shall be effective
when posted upon appropriate fixed or variable signs. In no case shall the
maximum speed limit for any highway be established at higher than the maximum
speed limits set forth in Code Section 40-6-181 for that type of highway.
