The biggest item with direct relevance to the region is the $99 million to be spent on procurement of the new intercity fleet trains and the planning for a maintenance facility.

This is part of a $2.8 billion investment which will see the South Coast line - and other regional areas - get all-new trains and carriages.

"This project will deliver new state-of-the-art trains including about 440 new carriages for customers from Newcastle, the Central Coast, Blue Mountains and Illawarra," said a spokesman for Transport for NSW.

The first of the estimated 400 carriages are expected to be delivered by 2019 with the rest of the fleet arriving through to 2024.

There was also another $99 million to continue the Opal card rollout.

"The Opal budget covers the ongoing rollout of the Opal card, including top-up machines and software enhancements in the Illawarra," the spokesman said.

The Transport Access Program (TAP), which is responsible for station upgrades, received $316 million in funding.

The region could be a beneficiary of some of this money through station upgrades.

A map on the NSW budget's website marks Fairy Meadow, Wollongong, Dapto and Oak Flats stations with a TAP logo.

However, a Transport for NSW spokesman said this was to indicate stations in the region where work has already been done - mainly adding car parking spaces rather than pointing to any future plans.

The spokesman also said the region would benefit from the $40 million being spent on online communication and signage to help commuters better plan their journeys, the $400 million has been allocated to run rural and regional bus services and the Taxi Transport Subsidy Scheme.