Opposition roads spokesman Terry Mulder claimed the State Government had increased the use of mobile speed cameras in Monash, Boroondara and Whitehorse due to significantly less-than-expected speeding fines on the Ringwood to Frankston tollway.

Last year, Premier John Brumby forecast EastLink would raise $62.5 million a year in speed camera fines.

However, documents obtained last week by the Opposition revealed that in September 2008, fixed speed cameras on the tollway clicked only 452 times, resulting in $77,367 in fines.

Based on the September 2008 figure, Mr Mulder has estimated EastLink speed camera fines will have totalled less than $1 million since it opened one year ago - a shortfall of about $61.5 million.

Documents obtained last month by the Opposition revealed the use of mobile speed cameras in municipalities near EastLink had increased since March.

The documents showed that between the March quarters in 2008 and 2009, mobile speed cameras clicked 2101 times more in Monash, Boroondara and Whitehorse than in the previous year, when 12,025 fines were issued.

Mr Mulder said motorists could expect "Labor Government revenue-raisers" to work even harder this year. "John Brumby and [Police Minister] Bob Cameron said in the budget papers they expected total takings from speed cameras to rise by $39.6 million to $437.2 million in 2009-10."

A State Government spokesman said it made "no apologies for trying to cut the road toll".

"Speed remains the big killer on our roads, being a factor in over 30 per cent of fatal crashes. We would be happy to receive no revenue from cameras if it meant motorists were no longer speeding."