1130

1. Whenever any highway has been divided into two or more roadways by leaving 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 unless directed or permitted to use another roadway by official traffic-control devices or police officers. No vehicle shall be driven over, across, or within any such dividing space, barrier, or section, except through an opening in such physical barrier or dividing section or space or at a crossover or intersection, as established, unless specifically authorized by public authority.\n2. No person shall drive a motor vehicle or motorcycle onto or from any controlled-access highway except at the established entrances and exits thereof unless directed or permitted to use another entrance or exit by official traffic-control devices or police officers.