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47-11-803.


47-11-803.
   
   A. Whenever local authorities in their respective jurisdictions
   determine on the basis of an engineering and traffic investigation
   that the maximum speed permitted under this article is greater or less
   than is reasonable and safe under the conditions found to exist upon a
   highway or part of a highway, the local authority may determine and
   declare a reasonable and safe maximum limit thereon which:
   
   1. Decreases the limit at intersections; or
   
   2. Increases the limit within an urban district, but not to more than
   sixty-five (65) miles per hour; or
   
   3. Decreases the limit outside an urban district, but not to less than
   thirty (30) miles per hour.
   
   B. Local authorities in their respective jurisdictions shall determine
   by an engineering and traffic investigation the proper maximum speed
   for all arterial streets and shall declare a reasonable and safe
   maximum limit thereon which may be greater or less than the maximum
   speed permitted under Section 1-101 et seq. of this title for an urban
   district.
   
   C. Any altered limit established as hereinabove authorized 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. As to streets and highways within the corporate limits which have
   been constructed or reconstructed with state or federal funds, local
   authorities shall have joint authority with the Transportation
   Commission to establish or alter speed limits; provided, however, the
   speed limit on an interstate highway within such corporate limits
   shall not be decreased to less than sixty (60) miles per hour; and
   provided further, that no local authority shall impose speed limits on
   any such street or highway substantially lower than those justified by
   the highway design, capacity, and traffic volume as determined by
   engineering studies.
   
   E. Not more than six such alterations as hereinabove authorized shall
   be made per mile along a street or highway except in the case of
   reduced limits at intersections, and the difference between adjacent
   limits shall not be more than ten (10) miles per hour.
   

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