A truckie has been charged with driving while unlicensed and other offences after a major crash on Adelaide's South Eastern Freeway.
Nine people were hurt when the trailer-towing truck was unable to stop at the base of the freeway on Sunday and ploughed into a bus and other vehicles as it careered through an intersection.
Its driver, a 60-year-old Queensland man, was taken to hospital with non-life threatening injuries before he was arrested and charged on Tuesday night.
He will face Adelaide Magistrates Court on Wednesday charged with nine counts of dangerous driving causing harm, endangering life, driving while unlicensed and other heavy vehicle offences.
South Australia police are continuing to investigate the crash which has prompted renewed calls for extra safety measures on the freeway.
The Transport Workers Union wants the construction of a new arrester bed near the end of the freeway, a cut in the speed limit for heavy vehicles from 60km/h to 40km/h and compulsory training for drivers on navigating steep descents.
Premier Peter Malinauskas said it did not matter what measures the government put in place if people were intent on getting behind the wheel while unlicensed.
"It is always difficult for governments to try to prevent people behaving absolutely recklessly, which, allegedly, appears to be what occurred here," he told Adelaide radio 5AA.
However, the premier said the government was looking at a range of options, including the arrester bed.
"Ultimately, when we're talking about the fiscal environment that we now operate within, we're using taxpayers' dollars very carefully and in a way we committed to before the election," he said.
The base of the freeway, where Adelaide Hills commuters, trucks and people driving to the city from the eastern states converge, has been the scene of a number of serious crashes and near misses in recent years.
In one of the worst incidents, two people were killed in 2014 when a sewage truck suffered a major brake failure and crashed into two stationary cars.
