REpurpose the highway. First, offically recognize the whole toxic space is currently a health hazzard. Close it down, piece by piece.

build in light rail/monorail /pedestrian promenades/ bikeways/ parks/ walking paths/ water capture/ small farms/ solar generation shading right on them.

ReZONE repurposed highway corridors for increased density all along and use the permits to build additional tax revenue from housing/construction boom - use cash to pay for further highway repurposing.

Rebuild highway on/off ramps blighted underpasses into thriving commercial centers/put parking in so commuters can drive locally to them and park/jump on the train.

LIVE in a city where public transit moves us smoothly from place to place without the toxic madness of rush hour traffic, EVER.