The Tullamarine Freeway has reopened after a crash this afternoon, but motorists are warned that the extra congestion will not clear until after peak hour.
A Vicroads spokesman said that even though the freeway was now open in both directions, the extra congestion was not expected to clear until around 6.30pm to 7pm.
Motorists travelling to the airport should still allow extra time for their journeys, he said.
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Earlier, the freeway was closed between Mickleham Road and the airport in both directions after a taxi and another vehicle collided.
Drivers were advised to use Melrose Drive as an alternative.