I am right near the 101 myself, so I hear you on the love/hate thing. I figure, at least it isn't the 710.

Even the medium sized midwestern city I am from has problems with road widening. I think it's basically a scourge wherever it goes on. There are some freeways in LA that almost seem impossible to shut down under any non-catastrophic circumstances, such as the 5 downtown (or anything downtown, probably) so it'll be interesting to see how they approach that over time.