National holiday road toll rises to four

Four people have died on Australian roads this festive season, including a man who lost control of his car on a Victorian freeway.

Police believe the man's silver Proton sedan was travelling outbound on the Monash Freeway in Dandenong North before it crashed into wire barriers on the centre median strip about 1.30am (AEDT) on Friday.

The driver, who is yet to be identified, died at the scene. He was alone in the car.

It was Victoria's first fatality during the official Christmas and New Year road toll period, but the nation's fourth.

A 19-year-old woman was killed in Tasmania just after midnight on Thursday in Blackstone Heights, in the outer suburbs of Launceston.

It followed two deaths on NSW roads - one in a two-car crash at Bostobrick, in the state's north, on Wednesday afternoon, and the other at Turramurra on Sydney's north shore on Tuesday.

By Boxing Day in 2013, the national road toll stood at nine.

Despite fewer fatalities, NSW Police are concerned about the number of drunk and speeding drivers.

Almost 6400 people had been caught speeding by day seven of Operation Safe Arrival - nearly 1100 more than at the same point in 2013.

A total of 423 drivers have also been charged with drink-driving, down by 312, including a man from Sydney's east who allegedly hit a fully marked police car outside Waverley police station.

Queensland drivers appear to have been better behaved, with traffic offences involving speeding, drink-driving, seat belts and mobile phones all down compared with the same period last year.

Nobody has been killed on Queensland roads since Tuesday.

The national road toll period runs from 0001 hours (AEDT) December 23, 2014 until 2359 hours (AEDT) January 3, 2015, in line with the Australia New Zealand Policing Advisory Board.