![]() These maps are no longer being maintained.If you’ve ever used Google Maps to get directions, you may have noticed that there are different colors that are used to indicate different things. They cover both rural and metropolitan areas of the State. There is also a series of older static maps available (last updated 2015) which display estimated traffic volumes on arterial roads. The information represented on this map is derived from a comprehensive database which facilitates the integration of various data sources. These are defined as discrete sections of road where the actual values of traffic volumes anywhere along that section are unlikely to vary by more than 10-15 per cent from the value shown on the map for that particular section. To achieve a reasonable balance between accuracy and practicality, the road network has been broken down into a series of "traffic estimate sections". However, estimates are progressively being provided for certain outback unsealed roads whose management is also the responsibility of the department. In general, this map shows traffic estimates only for sealed roads that are maintained by the department. Heavy vehicle traffic estimates represent the average daily two-way volume of these vehicles, and are expressed on the maps as both an absolute number and a percentage proportion of the total traffic flow. Heavy vehicles are defined as being those vehicles that are included in Classes 3 to 12 inclusive of the AUSTROADS vehicle classification system. The Average Annual Daily Traffic (AADT) estimate represents the total volume of traffic (that is, the sum of traffic travelling in both directions on a two-way road) passing a roadside observation point over the period of a full year, divided by the number of days in the year. Volumes are shown by various colour bands, click the 'Legend' button for more information.Ĭlicking on any coloured road section gives, amongst other things, the estimated average number of vehicles per day (two-way) that travel on that road section (shown as ‘Tesecn Volume’), the year of the oldest survey used to derive that estimate (‘Tesecn Base Year’), and the percentage and numbers of commercial vehicles (‘Cv Percent’ and ‘Number Cvs’ respectively). Traffic volume information is an important indicator of how the network is used.Īn interactive map displaying traffic volume estimate information for arterial roads in South Australia is available from the Location SA Map Viewer. The department is responsible for the effective management and efficient operation of all state government roads.īefore it is possible to plan improvements to the road system, it is important to understand how people currently use the existing network of roads. ![]() Undergraduate Vacation Employment Program.Aboriginal and Torres Strait Islander recruitment.Aboriginal Secondary Students Work Experience Program.Supporting Indigenous participation in partnership with Australian Government.Procurement Policies and Procedures 2017.Disclosure of Procurement Policy and Procedures.Public Complaints – Other areas of the Department for Infrastructure and Transport.Reporting required under any other Act or Regulation.DIT Annual Report 2021-22 online version.Extending clearway and parking restriction times.
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