Search for "playa del rey road diet". You should be able to find something. As to alternatives, yes they should be a prerequisite. But none have been offered for North Lake Shore Drive. Here's their "alternative" plan, unveiled last year: Same freeway, more green space. My argument against the article you posted is it posits no alternatives: In other words, annihilate the whole thing and hope a single subway line will pick up the slack. C'mon.
Consider, for example, not a Chicago cut off from its lakefront by a highway that forces pedestrians to pass under or over it, but rather a city whose neighborhood streets turn into pathways down to the beaches. A rapid transit line with welcoming stations every half mile offering an alternative to the packed Red Line ‘L’ down the street. New opportunities for development, featuring water-fronting retail and cafes, without the ever-present noise and dust of the freeway—allowing people living and working in the towers lining the lake to finally open their windows. Larger parks, no longer divided in two by concrete.|