I've driven just about everywhere west of the Dakotas. You're talking about the kind that's sort of like a new lane opening on the right, going parallel with th

I've driven just about everywhere west of the Dakotas. You're talking about the kind that's sort of like a new lane opening on the right, going parallel with the road for a good while, right? Those are incredibly rare, I think mostly in one region of California, like maybe the Yosemite area. Ignoring those clearly-marked, friendly, and predictable pullouts, practically everything else is a total crapshoot you really don't know what it's going to be like until you've already driven past it. With a 38-foot 31,000 lbs class A, we made it the passenger's job to call out whether a pullout was safe or not, because the driver just didn't have enough time to notice it. Often we did manage to pull out of traffic for a moment and let 3-10 cars pass, but sometimes it just wasn't feasible.