A pedestrianized brady st sounds like a great idea! Its use as a business district is already well established with tons of pedestrian activity & i feel would succeed quite well with pedestrianization. Think of how much more outdoor dining there could be or the programming that could occur on game days.
Here is the link to the proposed brady st designs… personally, im quite a fan of option 3 from a practicality aspect (option 4 would likely have exceptions to vehicle restrictions, particularly between humboldt and franklun): https://bradystreet.org/pedestrian-first-study/
Its worth noting though, such plans are quite ambitious considering the obscenely prudish and backwards nature of the local businesses. They refuse to accept even the most minor of traffic calming as proven by their demands to remove the recently installed chicane.