Sydney commuters to get 12 days of free public transport

After weeks of commuter chaos Sydneysiders will get some compensation in the form of 12 days of free travel across the city's entire public transport network.

The NSW Government's concession comes after the NSW Rail, Tram and Bus Union threatened to strike every Friday in June unless the government instituted a period of free travel for commuters as an apology for last month's fiasco when trains shut down for 24 hours.

The free travel will come into effect on April 14 and run until April 26.

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Coinciding with Easter holidays, the move is expected to help families wanting to keep costs down.

The fee fares include all forms of transport - trains, bus, light rail and ferries - and extends across Greater Sydney to the Central Coast, the Hunter Valley region, the Illawarra and the Blue Mountains.

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While the government is remaining tight-lipped about how much the free travel will cost them, the estimate is close to $14 million.