> I don’t feel as strongly about separated bike infrastructure, mainly because my experience with it is that it’s more dangerous than riding in auto lanes, and that it creates an illusion of separation that both heightens that danger and heightens the dangerous attitudes of drivers trying to navigate it.
That's why I specifically said "dedicated infrastructure", painted bicycle gutters are NOT proper bicycle infrastructure either. Bicycles should be at grade with pedestrians, but on dedicated cycling pathways so there's no conflict between the medium-speed traffic from bikes and the low-speed pedestrian traffic (even though they may often run parallel with each other).
Ultimately I call it "bike infrastructure", but really it's better to think about it this way - we have three different speed classes that need dedicated rights of way to make sure everyone is safe.
High speed / automobiles - It's not just cars and trucks, motorcycles and high end electric scooters belong here as well (I don't share space with bikes when I'm going 40MPH on my eScooter, it's unsafe for cyclists and dangerous for me as well - so I take normal travel lanes because I'm going the speed of traffic anyway).
Medium speed / bikes / eBikes / lower end electric scooters / EUCs / etc - Things that have a top speed of 20-30MPH generally speaking. Doesn't need wide lanes, and ideally should have more direct routes with fewer stops to conserve momentum.
Low speed / pedestrians / mobility scooters / etc - Obvious, you're going 5-6MPH max here even if you're out taking a run.