Okla. Stat. tit. 47, § 47-15-102: Powers of local authorities

A. The provisions of this title shall not be deemed to prevent

local authorities with respect to streets and highways under their

jurisdiction and within the reasonable exercise of the police power

from:

1. Regulating the standing or parking of vehicles;

2. Regulating traffic by means of police officers or traffic-

control signals;

3. Regulating or prohibiting processions or assemblages on the

highways;

4. Designating particular highways as one-way highways and

requiring that all vehicles thereon be moved in one specific

direction;

5. Regulating the speed of vehicles in public parks;

6. Designating any highway as a through highway and requiring

that all vehicles stop before entering or crossing the same or

designating any intersection as a stop intersection or a yield

intersection and requiring all vehicles to stop or yield at one or

more entrances to such intersection;

7. Restricting the use of highways as authorized in Section 14-

113 of this title;

8. Regulating the operating of bicycles and requiring the

registration and licensing of same, including the requirement of a

registration fee;

9. Regulating or prohibiting the turning of vehicles or

specified types of vehicles at intersections;

10. Altering the speed limits as authorized herein; and

11. Adopting such other traffic regulations as are specifically

authorized by this title.

B. No local authority shall erect or maintain any stop sign or

traffic-control signal at any location so as to require the traffic

on any state or federal highway to stop before entering or crossing

any intersecting highway unless approval in writing has first been

obtained from the Department of Highways.

C. No ordinance or regulation enacted under paragraph 4, 5, 6,

7 or 10 of subsection A of this section shall be effective until

signs giving notice of such local traffic regulations are posted

upon or at the entrances to the highway or part thereof affected as

may be most appropriate.