A Canterbury University researcher wants bigger fines to stop prolific speeders.

A study has found drivers who have received speeding tickets are three times more likely to be in a crash than those who haven't been ticketed.

Speed was a factor in a third of fatal crashes last year. 
 
Canterbury University's Dr Darren Walton says the lowest fee is $30. 

"Whether that is a suitable punishment is moot - but it is certainly out of kilter with the rest of the world, most places have larger fines than we have in New Zealand."

Walton says altering demerit points could also help change behaviour. 

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