According to a report published by the Governors Highway Safety Association, the road toll in the United States is back to the levels of 60 years ago.
In 2010, 32,885 died on US roads which is the lowest since the 1950s.
By comparison, 1292 people died on Australian roads last year which is the lowest since 1946 and about a third of the deaths recorded at the peak in 1970.
The report cited safer cars as one of the reasons behind the lower American road toll, but said that it could be lowered further with the right driver attitudes.
The GHSA found driver behaviour was hampering a decrease in the road toll and advocates laws against aggressive driving after finding only two US states have increased fines for speeding since 2005, and one of those - Wyoming - applies those fines only to drivers of commercial vehicles.