40:67-16.Ā  Safety zones and other structures for traffic regulations; exceptions
The governing body may establish safety zones, erect, construct and maintainĀ  platforms, commonly calledĀ  "safety aisles" ;Ā  standards commonly called "silent policemen" , beacon lights, guide posts and other structures which itĀ  may deem necessary for the safety and convenience of persons and vehicles usingĀ  the streets of such municipality, but no such erections or constructions shallĀ  be made, operated or maintained on any state highway without permission of theĀ  state highway commission;Ā  nor shall any such erections or constructions beĀ  made, operated or maintained on any county road or county boulevard withoutĀ  permission of the board or body having control of or jurisdiction over suchĀ  county road or boulevard.
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