It's kind of stupid, because the Sheffield stands obviously don't take up more space than the row of bicycles that would be locked to them...but I see this as a potential point of resistance to installing them. "But but but lookit all the space they're taking up!" No kidding. I wish we had a ton of those in Boston. Where there are racks, they're generally U-loops, often just a single upside-down U, which is good for two bikes only. Parking meters, signs, trees and fences, that's what we mostly end up using here. Kinda sucks.