Under the plan, free trains, trams and buses — originally due to end in April — will now continue until June 1. From that date, fares will be reduced by 50 per cent through to the end of 2026.

Premier Jacinta Allan announced that from the day the Metro Tunnel begins its Summer Start in early December until 1 February, all travel on trains, trams and buses—both metropolitan and regional—will be free every Saturday and Sunday.

The ultimate plan is for a high-speed rail network to connect Brisbane, Sydney, Canberra, Melbourne and regional communities across the east coast.

The cheap fares will apply to all trips on buses, light rail, trains, and ferries, over any distance, in cities and towns that are part of the Translink network.

On a weekend or public holiday, daily fares are capped at $7.20 or $3.60 for concessions.