FIJI Roads Authority chief executive Neil Cook says changes in import levies and duties have made bus operators confident of purchasing new buses.
Mr Cook said the improving road conditions gave the operators more faith that their investments would not be wasted.
"It is a concern to FRA if at any time road conditions contribute unduly to increased maintenance requirements," he said.
"When a prolonged rain event occurs, FRA's contractors have an immediate response regime to address safety concerns, to clear slips and to reinstate access as soon as possible. During the normal course of road maintenance contractors target the gradual and continual improvements to the road network that will, over time, see it become more and more resilient to weather events."
Mr Cook said no road network would ever be "weather-proof".
"However, on our journey that started a little over a year ago, we are already seeing significant improvements both in the way the network handles the rain.
"All bad roads in the North are in the process of being addressed for maintenance or remedial works following the rains over the past week or so.
"This year there will be millions of dollars spent on improving the resilience of roads in the North — so they can 'bounce back' much quicker following prolonged rain events."