What is this map? The colors here represent the degree to which visitors to a businesses in a neighborhood are diverse and the degree to which residents from that neighborhood experience diversity in day-to-day life. We call these place segregation (in) and neighborhood isolation (out), and they are both scaled from 0-1, with 0 being perfect integration (encounters with all economic classes in equal proportion) and 1 being perfect segregation (all encounters with a single class). Place segregation and neighborhood isolation are related but distinct: in many parts of America, residents can seek out homogeneous amenities despite heterogenous visitors to their neighborhood; in others, residents travel to diverse amenities even though those nearby are not diverse.

A high in-segregation corresponds to less diverse visitors to a Census block group; a high out-isolation corresponds to less diverse encounters on trips to amenities and busineses by residents of a block group.