Traffic control signals shall be installed and operated at the intersection of those streets described in Schedule XXI (§
620-115), attached to and made a part of this chapter.
The traffic signal installation shall be in accordance with
the provisions of An Act Concerning Motor Vehicles and Traffic Regulations,
Subtitle 1 of Title 39 of the Revised Statutes, shall conform to the design and shall be maintained in
operation as authorized by the Department of Transportation of the
State of New Jersey.