The strongest case for banning cars from city centers is throughput. One lane might carry roughly 600 to 1,600 cars an hour, but that same space can move thousands of people by bus, bike, and foot. That's the objective: move more people with less risk. My opponent will likely say bans hurt workers and business, and that's a fair concern. But the tactic isn't a wall, it's a phased perimeter with exemptions for deliveries, disabled drivers, and essential services. Cars aren't banned from the city, just from where they're least efficient.