Whenever any street has been divided into two roadways by an intervening space, or by a physical barrier, or clearly indicated dividing section so constructed as to impede vehicular traffic, every vehicle shall be driven only upon the right-hand roadway, and no vehicle shall be driven over, across or within any such dividing space, barrier or median section, except through an opening, crossover or intersection established by public authority. This section does not prohibit the occupancy of such dividing space, barrier or median section for the purpose of an emergency stop or in compliance with an order of a police officer.
(ORC 4511.35)