This paper presents a descriptive analysis of spatial trends in six U.S. metropolitan areas. The results show that generalized job dispersion was a more common spatial process than subcentering during the 1980s and 1990s when jobs continued to decentralize from the metropolitan core to the suburbs. Three distinctive patterns of spatial development were found. Job dispersion was predominant in Portland and Philadelphia, whereas the polycentricity of Los Angeles and San Francisco was further reinforced. New York and Boston with large and long-established CBDs were less prone to decentralization. Each metro seems to have developed a unique pattern of decentralization in light of their histories and circumstances, which has limited the growth of commuting times.

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The Centre of Policy Studies (COPS) is a research centre at Monash University devoted to economy-wide modelling of economic policy issues.

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This study examines the relationship between light rail transit (LRT) stations and changes in neighborhood characteristics associated with gentrification using spatial regression analyses with longitudinal data across 14 US urbanized areas (UAs). Overall, we do not find evidence of prevalent gentrification in LRT station areas. An analysis of UA-specific impacts shows heterogeneous outcomes across different UAs, particularly: strong transit-oriented development (TOD) effects accompanied by gentrification in San Francisco and TOD with countergentrification in Portland. Our results highlight that different local and regional planning efforts can lead to different types of changes in transit station neighborhoods.