Nolan E. Phillips, Brian L. Levy, Robert J. Sampson, Mario L. Small & Ryan Q. Wang
The social integration of a city depends on the extent to which people from different neighborhoods have the opportunity to interact with one another, but most prior work has not developed formal ways of conceptualizing and measuring this kind of connectedness. In this article, we develop original, network-based measures of what we call “structural connectedness” based on the everyday travel of people across neighborhoods. Our principal index captures the extent to which residents in each neighborhood of a city travel to all other neighborhoods in equal proportion. Our secondary index captures the extent to which travels within a city are concentrated in a handful of receiving neighborhoods. We illustrate the value of our indices for the 50 largest American cities based on hundreds of millions of geotagged tweets over 18 months. We uncover important features of major American cities, including the extent to which their connectedness depends on a few neighborhood hubs, and the fact that in several cities, contact between some neighborhoods is all but nonexistent. We also show that cities with greater population densities, more cosmopolitanism, and less racial segregation have higher levels of structural connectedness. Our indices can be applied to data at any spatial scale, and our measures pave the way for more powerful and precise analyses of structural connectedness and its effects across a broad array of social phenomena.
Amy Lubitow, Miriam Abelson, JaDee Carathers & Maura Kelly
This research endeavors to fill a conceptual gap in the social science literature on gender, public space, and urban mobilities by exploring how transgender and gender nonconforming individuals experience public transit. Although previous research has surveyed gender minorities about harassment and discrimination in a range of environments, little is known about the quality or content of these experiences. Drawing from 25 interviews with transgender and gender nonconforming individuals in Portland, Oregon, this article finds that gender minorities experience frequent harassment while engaging with the public transit system. We articulate the concept of transmobilites to describe the ways that transgender and gender nonconforming individuals experience a form of mobility that is altered, shaped, and informed by a broader cultural system that normalizes violence and harassment towards gender minorities. We conclude that gender minorities have unequal access to safe and accessible public transportation when harassment is widespread, normalized, and when policies prohibiting discrimination remain unenforced on urban public transit.
