Route and structure restrictions are published in the: Adelaide Metropolitan area (239.9 KB PDF).Adelaide Hills area (including Mount Barker inset) (270.7 KB PDF).Approved area mapsĪpproved area maps that are referenced in mass or dimension exemptions are: RAVnet FAQs - Department for Infrastructure and Transport (DIT). Restrictions associated with specific route networks are also included. RAVnet is an interactive map system that displays approved heavy vehicle route networks in South Australia. Prior to any journey, drivers must determine the approved route using the RAVnet online map system. Vehicles operating under a mass or dimension exemption (notice or permit) in South Australia must travel within stated areas and on stated routes.