Elon Musk isn't one for thinking small or cheap, so his solution to beating the traffic was neither. The Boring Company is building tunnels under LA as a way of bypassing traffic completely, and the first one is almost finished.
As Engadget reports, Musk posted a video of the "almost done" tunnel on Instagram along with the promise of offering free rides to the public in a few months. Of course, those free rides can only happen if the Boring Company manages to secure final regulatory approval for the tunnel. Seeing as LA let him build it, I doubt he will now be stopped from using it.