
From what we can tell it's essentially proposing that the CTA run a line on existing Metra tracks. It's something similar to what we've posted about before (here and our own unfounded iteration here), but this is the first time a major Chicago news organization has picked it up (from what we can tell). Although it would be great to provide El transportation on the South Lakefront, our guess is that it won't happen.
Regardless it's still an interesting concept.
(Image from chicagotribune.com)