if you think this area's got problems, allow me to turn your attention to an area that hasn't a clue:
a mountain valley from temecula, to riverside, to moreno valley, to hemet, back to temecula = roughly a rectangle of sorts.
they haven't a clue what's going on.
you'd think if they were smart rats, they'd crawl out of the box and look at what happened the last 60 years in los angeles.
not. they need to have built a new north-south freeway on the east side of the valley from moreno valley to hemet and into san diego county, parallel to the i-15. but it was not built.
they need multiple, east-west freeways from the i-15 across the valley. but they haven't built them.
meanwhile, they're filling up the area with new houses.
and the traffic locks up for miles. it's going to be a vast, parking lot.
I haven't been there in a decade+, but I think that their bigger problem is not getting around locally, it's getting out of there to where the good jobs are in LA, OC, and SD. That's something that they really can't control - and something that they knew they'd have to deal with once they located there (and generally that was because of the cheaper housing).