Motorists are used to cyclists being slow because of this overly cautious approach that novice cyclists take to riding bikes on roadways. Another way to help retrain motorists' expectations is to do better to keep up with traffic. If you are causing traffic blockages while on a bike, then you are not riding fast enough. There are multiple ways to address this, the simplest (though not easiest) being improving your cardio and strength. A more long-term, better solution would be to redesign infrastructure either to keep cyclists separate from motor traffic or to make motor traffic slow enough that bikes don't seriously impede traffic flow when they take the lane.
That's what I'd propose. Carving up the already scarce roadways to try and squeeze in a "safe" lane for cyclists is going to make it far more dangerous for both bikes and cars. Bike lanes that run above the street would be far safer.
Whether a cyclist can maintain 20 mph or just 10 mph isn't going to make a difference to the motorists. But taking the lane by default will train them to change lanes to pass like they would when encountering any other slow vehicle.
[1] https://iamtraffic.org/wp-content/uploads/2015/05/BicyclistP...
Do you cycle? Do you ride in the primary position that I described earlier by default?
You know, looking out for my own safety.
EDIT: If following the same rules as everyone else is too much to ask, maybe you should just stay off the road no matter what you're driving.
As a frequent city cyclist, I take the lane early and often as is my lawful right, signalling unequivocally my intention and impending action to merge into the traffic lane. Most often I use this right when avoiding someone double-parked in the bike lane, or when turning left at an intersection.
I don't think that's accomplished by encouraging equal use of roadways. I think that means space currently designated for cars should be reduced to make way for other modes of transportation.
Accessible cycling is what we need, and that usually means physical separation from cars.
For instance I don't see any particular utility to making infrastructure so that there's enough room for every person to use a motorized wheelchair.
Different conditions demand different solutions.
Replace "Accessible Cycling" with "Accessible form of transport that does not endanger other people not using that form." Whether that's bicycles or wheelchairs or scooters, etc.
The point is that putting them with cars is dangerous.
The last year before I moved to Germany, I got hit by cars twice, and neither time was I at fault. Once I got t-boned by someone who didn't look before turning, the other time someone suddenly went across the bike lane to pull into a parking lot. Neither crash was serious, but the first rattled me quite a bit -- my son was on my bike with me and got a scratch (and the bike rear wheel was totaled).
For that first crash, the more serious one, a cop showed up and wrote a report, but didn't even give the guy a ticket. In the US, driving a car makes you the privileged class, and you can get away with a lot.
My near misses have been because some idiot decides to hug or even drive in the cycling lane (usually while texting) or when someone parks a car in the cycling lane forcing me to move into the road (with cars being incapable of waiting for me to get around the idiot that decided to park in the cycling lane).
Those are instances of following the road rules perfectly yet still nearly getting in a dangerous wreck.
It's not a problem of rules, it's a problem of cyclists not having safe places to cycle. It's a problem of cities not planning for cyclists. It's a problem of cities not enforcing rules that ultimately protect cycling.
there will be cases of fault by all kinds of parties, but to type out something like "Well I've never died and I'm safe, so if you died you must be dangerous" is mind-numbingly shallow.