Hmmm, been far too long since I poked my nose in here...
I think the concept of turning the whole bloody thing into a freeway map could work, but I can see how people might not be sold on the current rail-like implementation.
I still think that a whole circus-maximus-on-crystal-meth concept could work, especially if all terits are going to be freeways (have north and south lanes, one-way attacks, interchanges become that much more important, perhaps the interchanges could have small respawning neutrals to keep the gridlock down, maybe try and incorporate a "carpool lane" concept into the 110 and 105, or conversely add the metrolink trains that run down the middle of those freeways). Y'know, make it more freeway-ish than it currently is.
Hope you come back to the project soon.
Te Occidere Possunt Sed Te Edere Non Possunt Nefas Est