Northern Metropolitan MLC Greg Barber will introduce a private member's bill into Parliament next month to amend the Road Safety Road Rules 2009.

Currently anyone who causes an accident by opening a vehicle door or leaving a vehicle door open can be fined three penalty units.

Mr Barber wants that to be increased to 10 penalty units.

The move follows a sharp increase in the number of "dooring" incidents since 2009, according to VicRoads data.

Mr Barber said the proportion of "doorings" was growing faster than other accidents involving cyclists.

"Cycling's growing fast, but accidents aren't growing at the same rate. This particular type of accident is and it continues to rise," he said.

Doorings are now the fourth most common accident involving cyclists, accounting for 5.9 per cent of accidents. They peaked at 8.7 per cent in 2009.

Bicycle Network Victoria spokesman Garry Brennan said there were reports of doorings every couple of days.

"Certainly there are more people riding every year, and so there will be a proportion of riders who are less road wise, and perhaps more susceptible," he said.

"Doorings rose rapidly in 2009 and have stayed high, but no-one knows exactly why."

BNV, in conjunction with Road Safe Action Group, Victoria Police and VicRoads, launched Operation Door Knock late last year, which will target inner-northern and south-eastern suburbs.

The campaign aims to raise awareness of driver-rider relations amongst bike riders, car organisations, taxi operators and freight companies. A study on driver behaviour will be undertaken as part of the operation.

RoadSafe Action Group - Inner Melbourne stated there have been 218 doorings in Melbourne city in the past five years and 100 in Yarra.

The state government controls both houses of parliament and its support will be essential for Mr Barber's bill to pass successfully.