- Career Opportunities
- Executive Employment Opportunities
- Diversity and Inclusion
- Entry Level Pathways
- Secondary School Work Experience
- Graduate Employment
- Aboriginal and Torres Strait Islander recruitment
- Internship Program
- Pre Employment Declaration Form
- Undergraduate Vacation Employment Program
- DPTI Capability Framework
- Annual report
- Open Government
- Social Media
- Government Employee Housing
- Office Accommodation Services
- Facilities Services
- Property Division
- Building Projects
- Department for Premier and Cabinet (DPC) Circular 028
- DPTI Star Rates - July 2019
- New Whyalla Secondary School Industry Briefing
- DPTI Industry Briefing - 2019
- New WCH - Consultant Industry Briefing - PSC Services - November 2019
- Future Tender Program - November 2019
- Building Projects Infrastructure Delivery - Overview of Role - Nov 19
- Future Tender Program - June 2020
- Future Tender Program - 8 July 2020
- Future Tender Program - 13 August 2020
- Future Tender program - 18 September 2020
- Future Tender Program - November 2020
- Future Tender Program - 4 March 2021
- Future Tender Program - 1 April 2021
- Future Tender Program - May 2021
- Who We Are And What We Do
- Emergency Maintenance
- Hazardous Materials
- Strategic Asset Management (SAM)
- AGFMA Information Systems
- Client Services
- AGFMA News
- Online Forms
- Contact Us
- Technical Guide Notes
- Future AGFMA
- Traffic Volumes
- Keeping Metro Traffic Moving
- Office of Local Government
- Gateway Reviews
- Regional aviation funding
- Forecast Transport Data
- COVID-19 SA Border Information for Essential Travellers
- Getting your head around roundabouts
- National Safe Work Month 2020
- Remote Areas Consultative Group (RACG)
The department is responsible for the effective management and efficient operation of all state government roads.
Before it is possible to plan improvements to the road system, it is important to understand how people currently use the existing network of roads.
Traffic volume information is an important indicator of how the network is used.
An interactive map displaying traffic volume estimate information for arterial roads in South Australia is available from the Location SA Map Viewer. Volumes are shown by various colour bands, click the 'Legend' button for more information.
Clicking 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).
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.
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.
In general, this map shows traffic estimates only for sealed roads that are maintained by the department. However, estimates are progressively being provided for certain outback unsealed roads whose management is also the responsibility of the department.
To achieve a reasonable balance between accuracy and practicality, the road network has been broken down into a series of "traffic estimate sections". 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.
The information represented on this map is derived from a comprehensive database which facilitates the integration of various data sources.
There is also a series of older static maps available (last updated 2015) which display estimated traffic volumes on arterial roads. They cover both rural and metropolitan areas of the State. These maps are no longer being maintained.