Promoting “Orderly and Sound Growth”: 1960s Debates Over Administering Public Transportation in Service of Mobility or Regional Planning

This article reconstructs debates within the Kennedy and Johnson administrations regarding the management of U.S. public transportation. Should transit be treated as a component of the mobility system, or as a tool of land-use planning? In the midst of jurisdictional battles triggered by the formation of two new departments, officials fiercely disagreed about this question and adapted their practices to gain the upper hand. I document how interest in organizing metropolitan growth and concerns about destructive road projects helped justify national housing agencies managing transit programs beginning in 1961. But Congress shifted them to the Department of Transportation in 1968. This was due, I argue, to lingering racist, anti-urban sentiments about housing-agency programs benefiting low-income people and transportation officials previously focused on highways devoting newfound attention to multimodal projects. Despite a fleeting moment of attention to regional land-use and transportation policy, this change ultimately bifurcated and diminished federal planning oversight.

Population Trends and Urbanization: Simulating Density Effects Using a Local Regression Approach

Density-dependent population growth regulates long-term urban expansion and shapes distinctive socioeconomic trends. Despite a marked heterogeneity in the spatial distribution of the resident population, Mediterranean European countries are considered more homogeneous than countries in other European regions as far as settlement structure and processes of metropolitan growth are concerned. However, rising socioeconomic inequalities among Southern European regions reflect latent demographic and territorial transformations that require further investigation. An integrated assessment of the spatio-temporal distribution of resident populations in more than 1000 municipalities (1961–2011) was carried out in this study to characterize density-dependent processes of metropolitan growth in Greece. Using geographically weighted regressions, the results of our study identified distinctive local relationships between population density and growth rates over time. Our results demonstrate that demographic growth rates were non-linearly correlated with other variables, such as population density, with positive and negative impacts during the first (1961–1971) and the last (2001–2011) observation decade, respectively. These findings outline a progressive shift over time from density-dependent processes of population growth, reflecting a rapid development of large metropolitan regions (Athens, Thessaloniki) in the 1960s, to density-dependent processes more evident in medium-sized cities and accessible rural regions in the 2000s. Density-independent processes of population growth have been detected in the intermediate study period (1971–2001). This work finally discusses how a long-term analysis of demographic growth, testing for density-dependent mechanisms, may clarify the intrinsic role of population concentration and dispersion in different phases of the metropolitan cycle in Mediterranean Europe.

From Rural Spaces to Peri-Urban Districts: Metropolitan Growth, Sparse Settlements and Demographic Dynamics in a Mediterranean Region

Considering settlement characteristics and population dynamics together over multiple spatio-temporal scales, the present study analyzes the spatial distribution of sparse settlements and population surrounding a large city in Southern Europe (Athens, Greece), in relation with long-term metropolitan growth and recent economic downturns. Results of the analysis identify regional-scale processes of urban compaction during economic expansion (2000s) with incorporation of scattered settlements in a high-density urban fabric, and moderate urban dispersion affecting low-density, peripheral areas in the subsequent period of recession (2010s). However, more heterogeneous dynamics were observed at the local scale. With economic expansion, a slight increase in the number of settlements was observed in local districts experiencing intense sprawl in earlier decades. With recession, a slight decrease in the number of settlements was, in turn, recorded in some rural districts surrounding compact urban centers, likely acting as local hotspots of urban re-densification. Given the multiplicity of socioeconomic factors involved, our findings highlight how urban development follows sequential phases of compaction and dispersion, based on locally differentiated spatial regimes characterizing settlement expansion and population growth. Sustainable urban management should face more actively with increasingly fragmented settlement dynamics at the fringe, prefiguring an appropriate spatial balance between urban centers and sparse settlements in light of recent demographic trends.

Unraveling the (Uneven) Linkage? A Reflection on Population Aging and Suburbanization in a Mediterranean Perspective

A complex interplay between socioeconomic transformations and demographic dynamics has characterized the long-term development of European countries. As a characteristic example of such linkage, the present study focuses on the spatial relationship between metropolitan growth and population age structure. Preferences for urban and suburban locations reflect complex socioeconomic phenomena such as sprawl, class segregation, gentrification and filtering. However, the spatial linkage between sprawl and demographic transitions was relatively poorly analyzed, and should be more extensively investigated in relation with population dynamics and socioeconomic structures at local scale. By reviewing pertinent literature, this study outlines how space exerts a non-neutral impact on population age structures in Europe, shaping housing needs and influencing settlement patterns and processes of urban transformation. While suburban locations have concentrated younger families and larger households in Northern and Western Europe, the socio-demographic composition of new settlements is increasingly dominated by older inhabitants in the Mediterranean region. Results of this work suggest how discontinuous urban expansion was specifically associated with an elder, wealthy population with high standard of living and a preference for specific housing locations such as detached villas with gardens and swimming pools.