No vehicle shall be driven over, across or within any such dividing space, barrier or section; except a vehicle may be driven through an opening in such physical barrier or dividing section or space or at an established cross-over or intersection unless specifically prohibited by public authority.
The driver of a vehicle may turn left across a paved dividing space unless prohibited by an official traffic-control device.
No person shall drive a vehicle onto or from any controlled access highway except at such entrances and exits as are established by public authority.
The (State highway commission) by resolution or order entered in its minutes, and local authorities by ordinance, may regulate or prohibit the use of any controlled-access roadway (or highway) within their respective jurisdictions by any class or kind of traffic which is found to be incompatible with the normal and safe movement of traffic.
The (State highway commission) or the local authority adopting any such prohibition shall erect and maintain official traffic-control devices on the controlled-access highway on which such prohibitions are applicable and when in place no person shall disobey the restrictions stated on such devices.
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