No traffic control signal shall be placed or maintained upon an extension of the State highway system within the City without first obtaining the permission of the Ohio Director of Transportation. The Director may revoke the permission and may require to be removed any traffic control signal that has been erected without his permission on an extension of a State highway within the City, or that, if erected under a permit granted by the Director, does not conform to the State manual and specifications as required by Section 305.01, or that is not operated in accordance with the terms of the permit.
(ORC 4511.11(C))