§47-15-106.

§47-15-106.
   
   (a) Local authorities in their respective jurisdictions shall place
   and maintain such traffic-control devices upon highways under their
   jurisdiction as they may deem necessary to indicate and to carry out
   the provisions of this act or local traffic ordinances or to regulate,
   warn or guide traffic. All such traffic-control devices hereafter
   erected shall conform to the state manual and specifications.
   
   (b) Local authorities in exercising those functions referred to in the
   preceding paragraph with regard to streets and highways which are a
   continuation of state or federal numbered highways shall be subject to
   the direction and control of the State Highway Commission.