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Development & Infrastructure

Development & Infrastructure

40 km/h Area Speed Limits

Council is committed to meeting the State Governments target to reduce crashes by 30% by 2020. To achieve this, we are investigating and investing in a number of road safety treatments in our Council, from physical devices to other ways to change driver behaviour. Lower speed limits have been proven to have an immediate impact on crashes where they have been introduced, as well as amenity benefits for residents. 40 km/h area speed limits are an affordable option to improve road safety, and allow Council to focus physical road safety treatments on high trafficked roads to not only improve safety but also improve traffic flows, which benefits the whole community.

40 km/h area Map (1105 kb)


Lower speed limits are just revenue raising.

Council does not enforce speed limits, and do not earn any revenue from any SAPOL enforcement of the road rules. SAPOL are only notified of the change in speed after Council have voted to implement a 40 km/h speed limit.

There are no crashes in my area, so lowering the speed limit is pointless.

In the City of Charles Sturt, on average every 3 days a road user is injured on our local streets. That is only local residential streets, not arterial roads. Crashes can occur at any time and on any street, and lowering the speed to 40 km/h has been proven to reduce crashes.

I’m a good driver, why should I be punished?

Even good drivers make mistakes, and many crashes involve two or more parties. By slowing everyone down just a little, this may mean you are able to avoid a driver who isn’t paying attention to the road or a child that hasn’t looked before running out onto the streets. We’re all human, we all make mistakes, and our residents have told us they don’t want anyone to have to pay for one mistake with their life or their health when losing a few seconds a day in travel time is what can be the difference.

Lower speed limits just annoy drivers, cause more road rage and will make our streets move slower.

Based on feedback from SAPOL, there is no evidence of increased road rage incidents in areas designated by either 40 km/h or 50 km/h speed limits. Delays to drivers are generally caused at intersections, from congestion and from finding a car park. We always recommend to residents who are concerned with this to try the difference before the 40 km/h speed limit is brought in and see the change in driving time.

No one will drive slower unless it is enforced.

In areas where 40 km/h has been introduced, an average speed reduction of 6 km/h has been recorded with minimal to no enforcement on the majority of the streets surveyed. We don’t expect everyone to suddenly start driving 40 km/h on our streets, but even a small reduction could mean the difference between someone being injured on our roads or stopping a crash from occurring in the first place.

Enforcement of speed limit

Enforcement of the lower speed limit is undertaken by the South Australian Police (SAPOL), who operate independent to Council. Council does not receive any revenue generated by SAPOL enforcement.

Major roadways will remain at their current speed limit.

This is a waste of money. Invest in a speed hump instead if you want to slow people down.

Lowering the speed limit in a whole area generally costs between $5,000 - $10,000. In comparison, the average roundabout costs over $100,000, and even a based bitumen speed hump costs approximately $5,000. For the same costs as a single treatment, we can cover a whole area, which is an equitable use of rate payer money, and has a much wider community benefit than a single treatment on a single street.

You’re installing a 40km/h Area speed limit in my street, but I wasn’t consulted

In June 2017, we engaged Colmar Brunton to conduct research into the level of community support to reduce the speed limit in areas across the City of Charles Sturt. Telephone interviews were undertaken with residents of the area, using the ‘last birthday’ sampling technique, where we asked for the person who last had a birthday. This method ensures that a mix of both males and females and people across all age groups have a chance of being included in the survey.   

My street needs traffic control devices to slow people to 40km/h

In the 2019/20 financial year, Council will be undertaking a comprehensive review of traffic conditions in its 40km/h areas to determine the impacts the lower speed limit has had on driver behaviour. As part of this review, further consideration will be given to the need for physical treatments or enforcement where low levels of compliance to the 40km/h speed limit are observed.

Sign Locations

The location of signs, are approved by the Department of Planning, Transport & Infrastructure (DPTI) and signs will only be relocated where road safety risks or impacts to future development are identified.

Please refer to individual Suburbs for a location Map:

Woodville South/ Findon /Beverley


Flinders Park / Allenby Gardens




St Clair

Welland/ Allenby Gardens

Hindmarsh / West Hindmarsh

West Croydon / Kilkenny

Renown Park

Croydon /West Croydon

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