Grand avenue is perfect for having sections as a pedestrian only boulevard especially near the new apartment / storefront areas. Start with a few weeks in the summer or around Christmas to try it out. There are wonderful small local businesses close together as well as restaurants. That's what's needed.
We'll see what they decide on. To be clear, the thumbnail of this thread isn't what they've decided on, just a potential design they might use. They're also looking at a bunch of others, though I don't like most of them very much.
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