Almost half of South Australia's drivers have admitted to breaking the road speed limit by more than 10 kilometres per hour.
Results from a recent RAA survey of 1400 motorists shows some alarming figures with large numbers of drivers putting themselves and others at risk.
RAA road safety senior manager Charles Mountain said creeping over the speed limit by even five kilometres could result in dire consequences, especially if road and weather conditions were not favourable.
He said drivers were not only at risk of receiving a fine but, more importantly, they were risking their lives and the lives of other road users.
"Research shows speed is a major contributing factor to serious and fatal crashes because you travel a longer distance before you react and it takes longer to stop,'' Mr Mountain said.
"This is especially crucial in areas where there are pedestrians and many other vehicles sharing the road, such as at shopping strips and schools.''
Mr Mountain said the RAA was also calling for more overtaking lanes on regional roads as passing other vehicles often lead to an increase in speed.
According to the survey, a visible police presence was a very effective way to dissuade drivers from speeding.
"However, people also indicated that speed cameras, fines and demerit points also played a part in deterring speeding, highlighting that a range of measures is required to reduce the risks associated with breaking speed limits,'' Mr Mountain said.
The survey showed that of 1400 drivers:
- 48 per cent exceed the speed limit by more than 10km/h on occasion
- 84 per cent admitted to sometimes driving 5-10km/h above the limit
- 73 per cent were most likely to speed when overtaking
- 32 per cent admitted to speeding when passing roadworks when no workers were present
- 54 per cent supported lowering speed limits from 60km/h to 50km/h in built up areas with a crash history
- 58 per cent supported 50km/h speed limits on local residential roads
- 64 per cent supported 60km/h limits on suburban arterial streets.