Supposing it works sufficiently, it's a great example of innovative urban systems that many cities who could desperately benefit from them don't try and pursue.

Supposing it works sufficiently, it's a great example of innovative urban systems that many cities who could desperately benefit from them don't try and pursue. I visited my hometown in Central Canada after winter this year, hoping that it would be the right time, but nope, I forgot about sand and car debris. Even walking one block in that damned city is like being whipped in the face with a fistful of gravel. Everyone drives, and so the roads need to be cleared, and sanded, and nobody in the cars experiences what it's like to be walking next to the road and have all that shit flying through the air. Tangentially, it's just one of those things that gets me down about stagnant cities. There's no money because it all goes to roads and maintaining other expensive infrastructure, and if there was money, it'd go to some asinine ribbon-cutting one-off that falls apart shortly after. There's no incremental improvement of full systems that help make life more compelling; the people seem to get used to it, while the ones who can afford it isolate themselves as much as possible and vote to keep it that way.