18:47
The general theory of walkability | Jeff Speck | TEDxMidAtlantic
12:29
A Sustainable Solution to Our world’s Water Problem | David Hertz | TEDxCrossroadsSchool
17:00
Designing Smart Urban Water Systems: Marcus Quigley at TEDxBeaconStreet
16:38
The Street: An Urban Ecology | Vikas Mehta | TEDxUCincinnati
17:53