You missed a 2 hour presentation on this last night.
Protected bike lanes are a standard in many cities our size. I will spare you the cut and pasting of images, but if you
google protected bike lane, this configuration isn't unique. The idea is that pedestrians and cyclists are protected from traffic by parked cars, additionally, the drivers side door opens 100% of the time - so having the bikes on the port side of a vehicle increases the risk of door collisions by a huge margin.
Ironically, studies also suggest that the "confusion" period is the safest time. Drivers tend to slow down and try to figure out whats going on. Our downtown is currently designed as a freeway, with wide straight lanes, timed lights, and clear site lines encouraging drivers to speed through. Turns out, that's not so good for cyclists, pedestrians, or reducing motor vehicle collisions. At 25 MPH here's what the driver needs to know: lots of paint means don't drive there. Just like the angled back in parking (that is also not unique to Tulsa), drivers can figure it out.
The roads downtown have been one way for a generation now (or two). During that time shopping has left downtown, residential left downtown, and recreation left downtown. Now that those things are coming back and many hope even more comes - it isn't surprising that going back has been suggested. Turns out if you have streets that encourage pedestrians, you get more pedestrians. If you have infrastructure that tells everyone they have to drive, then everyone drives.