The east-west link will slice more than seven cricket fields of land from Royal Park, according to a new report released on Monday.

The preliminary document by the Melbourne City Council makes the most detailed assessments to date about the potential impacts of the tunnel.

The east-west link is predicted to slice land from Royal Park. Credit:Simon O'Dwyer

It reveals predictions the project will result in increased congestion on the west side of CityLink, including along Racecourse Road in Kensington.

Hardest hit by "significant" traffic swell will be an area south of Arden Street in North Melbourne, although document does not detail how many extra vehicles are likely to be travelling through the area.