Funny that the conversations, vocabulary even, are in many ways similar in Portland and Austin. Yes, vehicular cycling is a term I have been hearing more and more frequently around here. Interesting enough, it's pretty much what I have been doing for the past 20 years to stay alive as a bicycle commuter in car traffic. Anyway, I use my own judgement and there are a few places in my city where I do split lanes because I think it is safer, particularly when a large % of the car traffic is turning both left and right at a given intersection, exactly as you have shown. Some of our newest bike lanes now actually purposefully split the motorist lanes, so that cyclists are shielded from the right hook maneuver, as mentioned above. Living in Austin and Portland, cycling progressive cities by US standards, gives us a few different experiences than in some other areas of the US (and Texas). At first the new bike lanes in the middle of traffic made me nervous, a bit. Now I use them all of the time to get through problematic intersections. I will use one of these new traffic splitting bike lanes today, because I need to go to the hardware store. Not sure if the new lane systems are on google, yet. I will try to post an aerial view of the bike lanes I am referring to, if google maps have been updated since.

Nope. No update on google maps or images. I will try to take some pics of examples of the new traffic lane splitting bike lanes (hopefully of me carrying a new toilet seat on my bike through this intersection, how fancy is that ?), which are only found at strange intersections where a high percentage of the auto traffic turns left and right.