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Picture: Michael O'Brien/The West Australian

Perth's "carmageddon" looms larger, with new figures showing an extra 200 cars and wagons on WA roads every day.

Department of Transport figures show that, for the first time, the number of licensed cars and wagons in WA has exceeded two million.

This growth, on the back of record increases in 2012, has further fuelled fears that Perth is literally driving itself into the ground.

There were 54,507 new cars, 17,478 new wagons and 7871 new motorcycles licensed in WA last year.

There was also a 6.6 per cent surge in caravans, up 4528, from 68,323 to 72,851.

Curtin University professor of sustainability Peter Newman said the growth was exceeding population increases, though there was some evidence that younger age groups were reducing their vehicle ownership.

"The other interesting phenomenon was reported in a recent Committee for Perth document that showed vehicle ownership depended a lot on where you live," Professor Newman said.

"The wealthy inner suburbs have much lower vehicle ownership.

"Perhaps then, this growth in vehicle ownership is a reflection that we aren't building enough new housing options that are better located where people can live with less car use and less car ownership."

Professor Newman said the only way to avoid "carmageddon" - worsening congestion and a road system unable to cope - was to provide good public transport and cycling options.

He said building more road capacity would never be able to keep up.

Major projects due this year include the widening of a 4.2km southbound section of the Kwinana Freeway between Roe Highway and Armadale Road, a new Seventh Avenue bridge in Maylands and modifications to Victoria Park Drive in preparation of the new Perth Stadium.

Continuing major projects include the $1 billion Gateway WA Perth Airport job and the $8.9 million upgrade of the Armadale and Warton roads intersection.