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This is 99% Invisible. I'm Roman Mars.

Here's the Baltimore City County line.

Weapons in the arsenal of exclusion, alphabetical, arm rest on benches, blood relative ordinance, block busting, bouncer, cold sack.

I think cities are great. There's movement and activity and diversity. But go to any city and it's pretty clear a place can be diverse without really being integrated.

Cities exist to bring people together, but cities can also keep people apart.

That's Daniel Diocca. My name is Daniel Diocca and I am an urban planner. I have a company in New York called InterBurrow Partners.

Over the last few years, Daniel and his two colleagues at InterBurrow Partners.

InterBurrow Partners is myself, Georgian, Theodore and Tobias Armborist. And the three of us working on this project for a number of years called the Arsenal of Exclusion and Inclusion.

This arsenal is a catalog of stuff inside a city. What we call weapons.

Concierge, Expulsive Zoning, Fire Hydrant, Food Truck Ordinance.

That architects, planners, policy makers, developers, etc. use to either bring people together or keep people apart or open the city or close the city or increase access to space or restrict people's access to space.

And a number of ways to spin it.

Historic Preservation, Home Motors Association.

Weapons ranging from no loitering signs to big things like housing vouchers and exclusionary zoning and all that kind of stuff.

Today we're only going to focus on the arsenal of exclusion, the weapons that keep people apart.

Weapons in the arsenal of exclusion.

In the city of Baltimore, a place Daniel Diocca truly loves.

I taught at Maryland Institute College of Art for six years.

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