The state government should scrap a second stage of the east-west link and encase controversial Royal Park freeway flyovers in sound tubes or dirt mounds, a Melbourne City Council report has recommended.

City planners have accused the Napthine government of failing to make an adequate case for a new elevated road alongside CityLink to Footscray.

How the east-west link could look.

They have called for the proposed Port road link to be dumped and major design changes to be made to flyovers planned at Parkville.

Three alternative designs were unveiled in the document prepared in response to the east-west link comprehensive impact statement. They are: