One thing we know for SURE — building and widening highways ALWAYS succeeds in helping sell more cars, gas and suburban sprawl; burning more public budgets; and increasing GHG emissions. So if THOSE are your goals, it’s the perfect thing to do.
Just don’t expect it to reduce traffic.
@BrentToderian One would hope the amount of money set on fire to learn this lesson would be minimal, but it usually isn't.
https://ktla.com/news/local-news/traffic-on-405-freeway-has-gotten-worse-despite-billion-dollar-widening-project/