Quantifying cities’ emotional effects
The “broken-windows theory,” which was propounded by two Harvard University researchers in the early 1980s, holds that urban “disorder” — visible signs of neglect, such as broken windows — actually promotes crime, initiating a vicious feedback loop. The theory was the basis for former New York mayor Rudy Giuliani’s crackdown on petty crime, but it’s come under sharp criticism from some social scientists. One of the difficulties in evaluating the theory is that it’s hard to quantify something as subjective as visible disorder.In the latest issue of the journal PLoS One, researchers from MIT’s Media Lab present a new online tool that they hope will help social scientists take a more rigorous look at city dwellers’ emotional responses to their environments. The tool presents online volunteers with pairs of images randomly drawn from Google Maps’ compendium of street-level photographs; each volunteer selects the image that better represents some qualitative attribute....