Why did this space look like this?

People threw garbage on the ground as they walked by. Debris from the nearby CVS would collect around the shrubbery. The space is owned by the Department of Transportation, making it necessary to call 311 to have it cleaned. Because the space was not on their weekly cleanup route, it usually took 4-6 months before someone would come to clean it. By then, garbage would settle again and the vagrants who left would return.