From this Saturday, the price of using some of the country's main roads will increase by up to 10 per cent.
But Transport Infrastructure Ireland says it's "highly likely" the rates will go up again next year.
Speaking at the Oireachtas Transport Committee, Independent TD Michael Lowry says it's unfair.
'Effectively what you're saying is, the motorists have to take the hit. The exchequer has already taken the hit to compensate the controlling companies. I mean how can that be fair or equitable? Is the contract so binding and how can it be so lucrative for these companies that everybody takes the extra charges and those companies continue to make massive profits.'
