Speed affects both risk of crash involvement and the severity of injuries in the event of a crash. Speeding reduces reaction time and strengthens the force of impact. When speeding, a vehicle needs greater distance to stop in order to avoid a crash. A small increase in speed can make a big difference in the seriousness of a crash and the impact to our bodies.
Speeding was identified as a contributing factor in an estimated 29% of fatal crashes (2011-2015).
A reduction of 5 km/h in average travel speed would reduce rural casualty crashes by about 30% and urban crashes by about 25%.
The risk of a casualty crash approximately doubles with each 5km/h increase in speed on a 60km/h speed limited road, or with each 10km/h increase in speed on 110km/h roads
When travelling 10 km/h over the speed limit in a 60 km/h speed zone, drivers are approximately 4x more likely to be involved in a casualty crash. That is a similar risk to driving with a blood alcohol concentration (BAC) of around 0.10 g/100ml, twice the legal limit.
On most trips, speeding will save very little time. For example, on a 10km journey, you will only save 46 seconds by increasing your speed from 60km/h to 65km/h.
Speed camera locations for Thursday, 24 May.
Andrew Smith Drive, Parafield Gardens
Angle Vale Road, Angle Vale
Balhannah Road, Hahndorf
Cavan Road, Dry Creek
Church Hill Road, Echunga