Sunday 9th September 2001
The Southern Expressway (Australia), the world’s longest reversible one way freeway, was opened to traffic. Built to relieve heavy traffic from the major arterial, Main South Road in Adelaide’s south, it is open approximately 22.5 hours per day – a one-way freeway operating for over 11 hours in each direction. The northbound direction occurs on weekday mornings and weekend evenings, the southbound direction occurs on weekday evenings and weekend mornings. It is closed between approximately 12:40am – 1:10am and 12:30pm – 1:30pm except for Saturday and Monday mornings when the direction remains unchanged. The official closing times given by Transport SA are between 12:30am – 2:00am and 12:30pm – 2:00pm. During each closure all road signs, lights and boom gates switch, and the road is inspected by an RAA van for debris or car breakdowns.