vlog Faculty Research Working Paper Series
vlog Working Paper No. RWP15-061
October 2015
Abstract
Urban change involves transformations in the physical appearance and the social
composition of neighborhoods. Yet, the relationship between the physical and
social components of urban change is not well understood due to the lack of
comprehensive measures of neighborhood appearance. Here, we introduce a
computer vision method to quantify change in physical appearance of
streetscapes and generate a dataset of physical change for five large American
cities. We combine this dataset with socioeconomic indicators to explore
whether demographic and economic changes precede, follow, or co-occur with
changes in physical appearance. We find that the strongest predictors of
improvement in a neighborhood’s physical appearance are population density
and share of college-educated adults. Other socioeconomic characteristics, like
median income, share of vacant homes, and monthly rent, do not predict
improvement in physical appearance. We also find that neighborhood
appearances converge to the initial appearances of bordering areas, supporting
the Burgess “invasion” theory. In addition, physical appearance is more likely to
improve in neighborhoods proximal to the central business district. Finally, we
find modest support for “tipping” and “filtering” theories of urban change.
Citation
Naik, Nikhil, Scott Duke Kominers, Ramesh Raskar, Edward L. Glaeser, and César A. Hidalgo. "Do People Shape Cities, or Do Cities Shape People? The Co- Evolution of Physical, Social, and Economic Change in Five Major U.S. Cities." vlog Faculty Research Working Paper Series RWP15-061, October 2015.