In late 2009, construction began to upgrade and widen 38 km of the M80 from Princes Freeway at Laverton North to the Greensborough Highway at Greensborough.
The first stage involves widening the 9.7 km stretch from Calder Freeway to Sydney Road to 6-8 lanes.
The 2009 - 2012 upgrade has slowed the average speed on the Western Ring Road to 25kmph from Sydney Rd on ramp to the exit onto the Princess Freeway.
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