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We generate a number of hypotheses about face-to-face groups using the energy distribution principle: the frequency of an event is inversely related to the amount of energy expended in that event. The principle predicts that (1) the size of groups will be inversely related to the frequency of their occurrence; (2) at any group size, the composition of social positions will be less heterogeneous than chance; and, (3) as group size increases, observed compositional homogeneity will decline at a slower rate than chance. We test these hypotheses using data on more than 100,000 naturally occurring, public, face-to-face groups gathered in sampling sweeps through two communities over a three-year period. The data support the hypotheses and yield interesting differences in the strength of sex and race heterogeneity. We discuss the findings as they relate to the general energy distribution principle and to other sociological perspectives.

This article examines the aestheticization of the politics of exclusion in a suburban American community. The research for this study focuses on the relationships among landscapes, social identity, exclusion, and the aesthetic attitudes of residents of Bedford, New York. By being thoroughly aestheticized, class relations are mystified and reduced to questions of lifestyle, consumption patterns, taste, and visual pleasure. Landscapes become possessions that play an active role in the performance of elite social identities. As such, social distinction is achieved and maintained by preserving and enhancing the beauty of places such as Bedford. This aestheticizing of place is managed through highly restrictive zoning policies for residential land and by "protecting" hundreds of acres of undeveloped land as nature preserves. This article explores the role of romantic ideology, localism, antiurbanism, antimodemism, and a class-based aesthetic in the construction of "wild" nature in these preserves. We argue that, in places such as Bedford, the celebration of localism, environmental beauty, and preservation mask the interrelatedness of issues of aesthetics and class identity on the one hand and residential land shortages in the New York metropolitan region on the other. The seemingly innocent pleasure in the aesthetic appreciation of landscapes and the desire to protect nature can act as a subtle but highly effective mechanism of social exclusion and the reaffirmation of elite class identities.

In this article the ambivalence of public policy responses to diversity on the street are documented empirically through a detailed case study of the marginalization of youth from the downtown public spaces of Portland, Maine, USA. Urban planners, architects and property developers have become increasingly concerned with improving the quality of urban life and the public spaces on which it depends. They argue that urban revitalization initiatives must embrace diversity — cultural and economic, as well as functional and spatial. This diversity of different ‘diversities’ is often under‐theorized, as are the benefits of, and relationships among, social and cultural diversity, economic diversification, mixed‐use and multi‐purpose zoning, political pluralism, and democratic public space. It is my contention that this ambivalence is not simply a smokescreen for vested commercial interests, but also provides opportunities for expressing alternative visions of what diversity and the city itself should be. Looking specifically at youth, I explore a relatively underexamined aspect of inner‐city diversity. While there is a relatively well‐developed literature about the contested place of low‐income groups, racial minorities and the homeless in urban redevelopment initiatives, youth have largely been ignored.

The nature of public space in contemporary society is changing. This paper uses the turmoil over People's Park in Berkeley, California, as a means for exploring changing ideas about and practices in public space. I argue that as public space is increasingly privatized or otherwise brought under greater control, possibilities for democratic action are minimized. To make this claim, I provide a brief outline of the roots of the August 1991 riots at People's Park. I then examine the role that public space plays in modern democracies, and how ideas about public space have developed dialectically with definitions of who counts as "the public." In American democracy, "the public" is constituted by private individuals. In this paper, I suggest that the presence of homeless people in public spaces raises important contradictions at the heart of this definition of "the public." Many commentators suggest that these contradictions have led to "the end of public space" in contemporary cities, or at the very least, the removal of its political functions to the "space" of electronic communication. I examine what this move means for democratic action in the city and show that material public spaces remain a necessity for (particularly) oppositional political movements. This returns us to People's Park, as these were precisely the issues that structured the riots in 1991. I conclude the paper with a sketch of where People's Park and the issues raised by the riots now stand.

As Malaysia's population continues to grow and becomes more concentrated in urban areas, the important benefits of urban green spaces to the environment, the economy, and the health and well-being of city residents become even more significant in counterbalancing some of the negative effects of the country's urban development. With this concern in mind, the authors designed a social survey for urban planners and landscape architects in Kuala Lumpur to identify and study their views on the nature, roles, and benefits of urban green spaces; the problems associated with protecting urban green spaces in Kuala Lumpur; and the attributes of green spaces they thought were most important when considering how much priority a particular green space should be given for preservation. Kuala Lumpur provides a particularly interesting case study as a rapidly growing city in a developing country with a tropical climate - a context in which there has been relatively little research on urban green space, despite the importance of shade in very hot climates. In addition, Kuala Lumpur has experienced a great loss of green space in recent decades, both on its periphery from urban expansion and around the city center from the drive (fueled by economic growth) to use central land more intensively.

Scholarship in urban sociology has pointed to the reliance of city governments on ever-more market mechanisms for organizing social and economic policy. This form of governance involves prioritizing cities’ cultural and social assets for their value in a global competition of urban “brands,” each competing for new infusions of human and investment capital. At the same time, however, cities have been at the center of seemingly progressive policy efforts aimed at promoting innovation, sustainability, and creativity. These themes represent a newly dominant planning discourse in cities across the globe. While researchers have thoroughly examined how “creative classes” and “creative cities” may exclude everyday, working-class, or poor residents, new urban imaginaries focused on sustainability potentially imply less stratified urban outcomes. Analyzing two high-profile interventions in Buenos Aires, Argentina—a sustainable urban regeneration plan for the historic downtown, and the creation of an arts cluster in the impoverished south of the city—this paper argues that despite divergent narratives, creative and sustainable urban projects suggest similar policy agendas, planning assumptions, and relationships to market mechanisms. Increasingly, global policies, whose design and objectives may appear to contradict market logics, may have outcomes that further them.

This study investigates the degree to which community can be found in Dutch neighbourhoods and attempts to explain why there is more community in some neighbourhoods than in others. We apply a perspective on community which assumes that people create communities with the expectation to realize some important well-being goals. Conditions that account for the creation of a local community are specified, i.e. the opportunity, ease, and motivation to do so. These conditions are realized when (i) neighbourhoods have more meeting places; (ii) neighbours are, given their resources and interests, motivated to invest in local relationships; (iii) neighbours have few relations outside of the neighbourhood, and (iv) neighbours are mutually interdependent. Data from the Survey of Social Networks of the Dutch on 1,007 respondents in 168 neighbourhoods are used. Results show that there is a sizeable amount of community in Dutch neighbourhoods and that all the four conditions contribute to the explanation, while interdependencies among neighbours have the strongest impact on the creation of community.

A growing literature examines the extent to which the criminal justice system perpetuates poverty and inequality. This research examines how anti-homeless laws produce various forms of police interactions that fall short of arrest, yet have wide-ranging impacts on the urban poor. Our analysis draws on a citywide survey of currently and recently homeless people, along with 43 in-depth interviews, to examine and reveal the mechanisms through which consistent punitive interactions, including move-along orders, citations, and destruction of property, systematically limit homeless people’s access to services, housing, and jobs, while damaging their health, safety, and well-being. Our findings also suggest that anti-homeless laws and enforcement fail to reduce urban disorder, but create instead a spatial churn in which homeless people circulate between neighborhoods and police jurisdictions rather than leaving public space. We argue that these laws and their enforcement, which affected the majority of study participants, constitute a larger process of pervasive penality—consistent punitive interactions with state officials that rarely result in arrest, but that do material and psychological harm. This process not only reproduces homelessness, but also deepens racial, gender, and health inequalities among the urban poor.

The growing proportion of human populations living in urban areas, and consequent trends of increasing urban expansion and densification fuel a need to understand how urban form and land use affect environmental quality, including the availability of urban green spaces. Here we use Sheffield as a case study of city-wide relationships between urban green space extent, quality (vegetation cover and tree-cover), and gradients in urban form and topography. The total area of buildings and length of the road network are equally strong negative predictors of extent of green space, while the former predictor is amore important negative influence upon green space quality. Elevation positively influences extent of green space but negatively influences tree-cover. In contrast, slope of terrain positively influences green space quality and is the best predictor of tree-cover. Overall housing density is a more important negative predictor of extent of green space and tree-cover than the densities of individual housing types. Nevertheless, the latter are more important influences upon levels of vegetation cover. Threshold effects of densities of different housing types suggest opportunities for optimising green space quality, with implications for housing policy. Variation in ecological quality of green space may partly reflect different historical intensities of industrial activity.

This study compares community-park design and residents' perceptions of safety in two subdivision communities in The Woodlands, Texas. The communities were built following two different planning approaches—the ecological approach and the conventional approach. Surveys have shown that residents generally feel safer in community parks built according to the latter approach. Using landscape metrics and home-to-park proximity indicators, we examine how different planning approaches affect park design and, as a result, influence residents' perceptions of safety. We cross-validated the results with survey studies conducted over several years. The study findings suggest that park location, spatial configuration of woody vegetation, and management of understory can be important design considerations that impact residents' perceived levels of safety. Park designers and managers should also consider providing parks that meet diverse needs and balance the requirements of ecological preservation, aesthetics, and cultural preference.

This study investigated influences of residential street layout on neighboring. The study design was quasi-experimental with one pretest and two posttest measurements in an intervention group and two control groups. Data were collected using a recently developed questionnaire (MMN) and through field observations. The intervention implemented in this study was a transformation of three sections of residential streets into street parks, entailing considerable changes in street floor and spatial layout, provisions of street furniture like benches, planting of trees and flower beds, installation of play equipment, and prohibition of traffic and parked vehicles. Supportive acts of neighboring, neighbor annoyance, and children's play showed an overall increase in the intervention streets, interpreted as a sign of increased involvement in the neighborhood. Weak social ties and neighborhood attachment showed more complex patterns of changes, depending on demographic factors. It is suggested that symbolic effects of the changes may be more significant than functional effects, and thus that a change of neighborhood identity is an important mechanism.

In this paper I present childhood biographies of three people who grew up in or near a public housing development located on the border between the contrasting communities of Yorkville and East Harlem in New York City. Stories of their middle childhood (ages 11-13) poignantly capture the social and spatial evolution of play and recreation in New York City from the 1930s until present time. Based on in-depth childhood autobiographies and archival materials from the New York Times, I demonstrate changes in children’s access to play and recreation space, how children negotiate their lived experiences in these spaces, and how these spaces reflect differing representations of childhood over time. While play and recreation are, of course, a broad range of activities that occur in multiple settings and under various forms of supervision, the focus of this paper is upon the role of the streets, public parks and playgrounds in children’s everyday lives. Preliminary results suggest that children’s access to public play spaces in New York City has declined over time. This decline can be attributed to public disinvestment in neighborhood parks and playgrounds, perceived (and real) violence in these spaces, and more recently, to the commercialization and privatization of playtime activities.

The popularity and impact of the High Line in New York mirrors the complex reality of contemporary provision of public space. The development of the project, its relation- ship to its surroundings and the evolving trend of elevated parks are analyzed in relation to the role of urban green space and impacts of Landscape Urbanism. The High Line shows the way to a new role for urban green space by utilizing abandoned infrastructure. In analysing the narrative of the High Line, this article stresses the importance of understanding localities and connectivity. Based on observations as well as a review of the literature and media, the article concludes that great landscaping does not create great places without careful consideration of the surrounding community and residents.

The article concentrates on emerging relationships between physical characteristics of urban open spaces and their uses. It draws on a combination of behaviour mapping and geographic information system (GIS) techniques - as applied to urban squares and parks in two European cities, Edinburgh (UK) and Ljubljana (Slovenia) - to reveal common patterns of behaviour that appear to be correlated with particular layouts and details. It shows actual dimensions of effective environments for one use or more of them and shows how design guidance can be arrived at, based on the particulars of the case study sites and cities. In addition, the value of this article is in exploring GIS, a tool that is currently irreplaceable in spatial analysis and planning processes for urban areas, as a detailed analytical and visualisation tool that helps to describe inner structure of places revealed by behaviour patterns.

After three decades of urban renewal in China, public spaces used by average residents have not been improved proportionally and, in some cases, have even deteriorated. Three problems can be identified. ‘Window-dressing’ prevails in government- developed squares and parks. Their locations and monumentality have made residents less willing to use these spaces. ‘Privatization’ describes how private developers maximize profits at the cost of public life in the urban environment surrounding their projects. ‘Gentrification’, different from its meaning in the West, refers to the tendency to ignore the needs of mid- and low-income residents in public facilities. Not entirely a repetition of the 1950s Western urban renewal, the Chinese cases reflect a society changing from a socialist system to a capitalist one.

The article concentrates on emerging relationships between physical characteristics of urban open spaces and their uses. It draws on a combination of behaviour mapping and geographic information system (GIS) techniques - as applied to urban squares and parks in two European cities, Edinburgh (UK) and Ljubljana (Slovenia) - to reveal common patterns of behaviour that appear to be correlated with particular layouts and details. It shows actual dimensions of effective environments for one use or more of them and shows how design guidance can be arrived at, based on the particulars of the case study sites and cities. In addition, the value of this article is in exploring GIS, a tool that is currently irreplaceable in spatial analysis and planning processes for urban areas, as a detailed analytical and visualisation tool that helps to describe inner structure of places revealed by behaviour patterns.

In the public-space discourse Los Angeles is usually portrayed as more "anti-city" than city. Its landscape is overrun by houses, "private-public" squares and plazas, theme parks, shopping malls, and so on and lacks inclusive public places. Yet this discourse has essentially disdained to contemplate a major public space that contradicts its general thesis: the Los Angeles coast. The coast is meaningful public place in two specific senses. First, it symbolizes Los Angeles as a whole and therefore provides a basis for regional public identity. Second, Angelinos themselves take the coast seriously as a public place, and they have striven to make it inclusive in prac- tice.

The climate of a city influences the ways in which its outdoor spaces are used. Especially public spaces intended for use by pedestrians and cyclists, such as parks, squares, residential and shopping streets, and foot- and cycle-paths will be used and enjoyed more frequently when they have a comfortable and healthy climate. Due to a predicted global temperature rise, the climate is likely to be more uncomfortable in the Netherlands, especially in summer, when an increase in heat stress is expected. As the phenomenon of urban heat islands (UHI) aggravates heat stresses, the effects will be more severe in urban environments. Since the spatial characteristics of a city influence its climate, urban design can be deployed to mitigate the combined effects of climate change and UHI’s. This paper explores these effects and tries to provide tools for urban design and strategies for implementation. Consequently, the applicability of the design tools is tested in a design for two existing Dutch neighbourhoods.

This paper examines the relationship between ethnic residential segregation and two components of the built environment: the geographic distribution of its elements and their spatial configuration (i.e., the spatial relations and visual access between those elements). This relationship is investigated through a case study of Arab-Jewish residential segregation in Jaffa. Statistical and structural analyses (Q-analysis) of this case show that the conjunction of elements having different meanings (symbolic, cultural, functional, etc.) with spatial and visual integration attributes provides varying conditions for the expansion of the Arab Jewish residential patterns, a process potentially affecting the geographic scale intensity of residential segregation. It was found, for example, that public land uses having relatively 'neutral' ethnic and symbolic meanings (e.g. commercial sites and parks) and spatially integrated with the surrounding urban environment tend to moderate residential segregation. Identification of the institutional character of the built environment—segregation/encounters in mixed ethnic areas—may contribute to a more socially oriented spatial policy.

Despite a burgeoning literature on mobilities in general and cycling in particular as a transport, leisure, and political practice, there remains a lack of research on cycling in pedestrian public spaces. There is, however, a substantial body of literature in relation to skateboarding in public spaces which with few exceptions theorises it as resistant to preexisting dominant design codes and social norms. Using the example of London's South Bank this paper focuses on the urban cycling practices of bike trials and BMX in order to illustrate that these practices are perhaps not as `resistant' as previous accounts have argued. Whilst accounts of skateboarding have tended to draw upon a body ^ architecture dialectics and subcultural theory, using ethnographic methods this paper discusses the practice and reception of display, sociality, and authority inherent in these public performances. In doing so the paper demonstrates that these styles of riding largely perform the social and cultural norms enshrined in the redevelopment of the South Bank. The result is a performed reading of these practices and spaces which sees power as always becoming. In line with this, the paper also questions the logic of current strategies which seek to displace riders and skaters to peripheral `private' skate parks based on an erroneous reading of such practices as always resistant.