The Wolli Creek Valley might have been an 8-lane freeway, but it was saved by Sydney's longest conservation fight.

The valley is inner south-west Sydney's environmental gem – a tranquil haven in a busy city, preserving an irreplaceable remnant of the pre-European landscape.

For 40 years a struggle over Sydney's future has been fought out here, a struggle that isn't yet over. It's been a battle between freeways and public transport; between open space and over-development; between urban sprawl and consolidation; between high-carbon and sustainable futures.

View EcoTransit's amazing documentary [1 hr 15 mins] which includes lots of Wolli footage and a history of the freeway paradigm going back to Mussolini and Le Corbusier.