The state government is funding the Point Nepean Road Congestion Study, to be carried out by VicRoads. The study will be conducted throughout this financial year and it is expected to be completed by the end of the 2012-13 financial year.

VicRoads regional director metro south-east Patricia Liew said the study would consider a number of alternatives to alleviate traffic congestion on the peninsula.

"The study will consider traffic and safety issues along Point Nepean Road and any opportunities for alleviating congestion and improving safety for different road users," she said.

"The Greater Mornington Peninsula Freeway was reserved in planning schemes about 30 years ago and extends through the municipalities of Kingston, Frankston and the Mornington Peninsula, between the Dingley Reservation in Clayton South and Blairgowrie.

"The option for a future road between Boneo Road, Rosebud, and Melbourne Road, Blairgowrie, has been recognised and protected for many years by the Greater Mornington Peninsula Freeway Reservation."

Ms Liew said a freeway extension was just one of the alternatives being considered.

"While the role of a road in the freeway reservation will be investigated, this is only one option that will be reviewed as part of the study on Point Nepean Road."

Western Port and Peninsula Protection Society advocate Karri Giles said the freeway extension was not welcome.

"It is a step towards over-population and will lead to over crowding and increased traffic on the Peninsula," she said. "There is also concern about the loss of native vegetation in the area."