§ 70.23  SPECIFICATION FOR TRAFFIC-CONTROL DEVICES.
   All traffic-control signs, signals and devices shall conform  to  state  regulations. All signs and signals required hereunder for a particular purpose shall so far as practicable be uniform as to type and location.  All traffic-control devices so erected and not inconsistent with the provisions of state law or this subchapter shall be official traffic-control devices.
('84 Code, § 16-15)