Believe it or not there are tons of two-way roads like that just 30 minutes from Silicon Valley that self-driving cars could practice on. Here's an example: https://goo.gl/maps/1CVb7Mpiwv1VL2sd7
There're also similar roads 30 minutes from Silicon Valley that have all that, plus residences, pedestrians, parked cars, sheer cliffs, unclear driveway splits, and porta-potties, eg. https://goo.gl/maps/57jzzK6fvtCqvu5w5
Strangely I've never seen Waymo vehicles practicing on that. They're all over Mountain View, but I have never once seen them in the mid-peninsula hills.
