South-west train commuters are set for a "more comfortable and convenient" journey from next year with a new direct morning peak service from Leppington to Schofields via Parramatta.
Transport Minister Andrew Constance said demand for the T5 Cumberland Line, which was extended to start at Leppington in November 2017, has surged this year with 30 per cent more south-west commuters catching trains towards Parramatta.
The new service will pass through the four Fairfield stations of Cabramatta, Canley Vale, Fairfield and Yennora.
"By boosting capacity on an increasingly busy part of the network, customers across the south-west region including Glenfield, Liverpool and Cabramatta will enjoy a more comfortable and convenient morning commute," Mr Constance said.
"Customers from the T8 South Line between Macarthur and Macquarie Fields will also benefit from the new service as it provides an extra connection at Glenfield to T5 services headed towards Parramatta and further west."
The new direct all-stops morning peak service departs Leppington at 7.07am, arriving at key stations such as Parramatta at 7.49am, Blacktown at 8.07am and Schofields at 8.17am.
The existing 7.21am all stops Leppington to Schofields service will instead depart at 7.37am and arrive at Parramatta at 8.19am.
"By giving customers an extra direct morning peak train and adjusting other services, the gap between trains will reduce to every 30 minutes during the peak period, and in some cases, the wait will be just 16 minutes," Mr Constance said.
"With modern air-conditioned trains, direct links from Leppington to Parramatta and Blacktown, as well as late night and weekend services, demand on this part of the network continues to grow. That's why we've been working hard behind the scenes to do everything we can to improve your daily commute."
The new service will start on Monday, January 6.