Metropolitan area

About: Metropolitan area is a research topic. Over the lifetime, 26029 publications have been published within this topic receiving 385648 citations. The topic is also known as: metro & metro area.

Residential segregation in American cities: a review and interpretation

Abstract: Significant levels of separation between blacks and whites still exist in large American cities, and debate about the causes of that residential separation has been considerable. A balanced analysis of the factors that might explain residential segregation - economic status (affordability), social preferences, urban structure, and discrimination - suggests that no one factor can account for the patterns that have arisen in U.S. metropolitan areas. Empirical estimation of the impact of economic status suggests that 30–70 percent of racial separation is attributable to economic factors. However, economic factors do not act alone, but in association explanatory weight for present residential patterns. Survey evidence from both national and local studies shows that black households prefer neighborhoods that are half black and half white, while whites prefer neighborhoods ranging from 0 to 30 percent black. The debate about causes seems most polarized over the role of discrimination. Although comments in the literature often focus on the past use of racially restrictive covenants by state-regulated agencies and discriminatory acts by realtors and financial institutions, the documented individual cases of discrimination do not appear to be part of a massive collusion to deny housing opportunities to minorities. A review of the evidence from social science investigations demonstrates that there are multiple causes of racial residential separation in U.S. metropolitan areas.

Understanding the Link Between Urban Form and Nonwork Travel Behavior

Abstract: Planners are increasingly turning to land use policies as potential solutions to transportation problems in metropolitan areas, yet little evidence exists to support the belief that such policies c...

Recovering a lost baseline: missing kelp forests from a metropolitan coast

Abstract: There is concern about historical and continuing loss of canopy-forming algae across the world's temperate coastline. In South Australia, the sparse cover of canopy-forming algae on the Adelaide metropolitan coast has been of public concern with continuous years of anecdotal evidence culminating in 2 competing views. One view considers that current patterns existed before the onset of urbanisation, whereas the alternate view is that they developed after urbanisation. We tested hypothe- ses to distinguish between these 2 models, each centred on the reconstruction of historical covers of canopies on the metropolitan coast. Historically, the metropolitan sites were indistinguishable from con- temporary populations of reference sites across 70 km (i.e. Gulf St. Vincent), and could also represent a random subset of exposed coastal sites across 2100 km of the greater biogeographic province. Thus there was nothing 'special' about the metropolitan sites historically, but today they stand out because they have sparser covers of canopies compared to equivalent locations and times in the gulf and the greater province. This is evidence of wholesale loss of canopy-forming algae (up to 70%) on parts of the Adelaide metropolitan coast since major urbanisation. These findings not only set a research agenda based on the magnitude of loss, but they also bring into question the logic that smaller metropolitan populations of humans create impacts that are trivial relative to that of larger metropolitan centres. Instead, we highlight a need to recognise the ecological context that makes some coastal systems more vulnerable or resistant to increasing human-domination of the world's coastlines. We discuss challenges to this kind of research that receive little ecological discussion, particularly better leadership and administration, recognising that the systems we study out-live the life spans of individual research groups and operate on spatial scales that exceed the capacity of single research providers.