The video in the article explains - if not tunnels, then you would need to either take away the green areas, or areas for pedestrian traffic. Also, this is mea

The video in the article explains - if not tunnels, then you would need to either take away the green areas, or areas for pedestrian traffic. Also, this is meant for transport to/from the inner city, so nobody to negotiate rights of way with - unless you mean demolishing buildings.