We get support from UC Davis, a globally ranked university working to solve the world's most pressing problems in food, energy, health, education, and the environment.

UC Davis researchers collaborate and innovate in California and around the globe to find

transformational solutions.

It's all part of the university's mission to promote quality of life for all living things.

Find out more at 21st century.

UC Davis. edu.c. dot edu

this is 99% invisible i'm roman mars

here here's the Baltimore City County line. Weapons in the arsenal of exclusion, alphabetical, armrests on benches, blood relative ordinance, blockbusting, bouncer, cul-de-sac. 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 be 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 Interboro Partners.

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

Interboro Partners is myself, Georgine Theodore and Tobias Armb Force, and the three of us I'm working on this project

for a number of years called the Arsenal of Exclusion and Inclusion.

This arsenal is a catalogue of stuff inside a city.

What we call weapons.

Consieurge, explosive zoning, fire hydrant, food truck ordinance.

That architects, planners, policy makers, developers, etc.

Youth 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, any number

of ways to spin it. Historic preservation. Homeowners Association.

Weapons ranging from no loitering signs to big things like housing vouchers and exclusionary

...