Fuck it, go a step further. No cars on these streets. Commercial delivery vehicles allowed 5-9am, otherwise they're cordoned off for foot traffic. Streets like Pike Place and Ballard Ave are no place for cars.
And I'm not a fuckcars guy. I love driving and I love cars. But nobody benefits from aggressive rideshare drivers or clueless tourists meandering these places. If you've gotta get places, there's an arterial a block away.