A community group that has lobbied for more than a decade to reduce heavy truck traffic in Melbourne’s inner west has attacked the Greens for threatening to join the Coalition to block Labor’s West Gate Tunnel in Parliament.

The Coalition and the Greens are expected to use their combined majority in the upper house on Wednesday to revoke planning approval for the $6.7 billion tollway through Melbourne’s west.

The proposed West Gate Tunnel as it crosses the Maribyrnong River. Credit: Victorian government

The Maribyrnong Truck Action Group has fought for more than 10 years to remove heavy vehicle traffic from residential streets in Melbourne’s inner west, often protesting in lockstep with the Greens.

But on the eve of the parliamentary debate, the group has accused the Greens of failing to put forward a real-world alternative to the toll road.