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In this article, we aim to develop a conceptual framework from a community perspective to examine the noneconomic effects of ethnic entrepreneurship, paying close attention to the linkage between entrepreneurship and community building. We base our analysis on ethnographic data from our comparative case studies of the Chinese and Korean enclave economies in Los Angeles. We argue that it is the social embeddedness of entrepreneurship, rather than individual entrepreneurs per se, that creates a unique social environment conducive to upward social mobility. This study suggests that ethnic entrepreneurship plays a pivotal role in immigrant adaptation beyond observable eco- nomic gains. Policy implications are discussed.

In recent years, a greater emphasis on user analysis and public participation in park planning has resulted in a greater scrutiny of the standards and guidelines used to establish and/or develop park areas within a community. The insensitivity of past "service area" approaches to meet the needs of neighborhood constituencies has created a demand to examine alternative approaches to defining neighborhood boundaries and the subsequent location of neighborhood parks. Two techniques that have been useful in accurately defining neighborhood boundaries and predicting use and nonuse of existing park facilities are examined.

Planning issues for urban waterfront Redevelopment projects are examined in this paper, based upon case studies in New York, London, Boston and Toronto. The research programme was based upon over 100 interviews with key actors in the four cities. The paper is oriented towards practical problems in the implementation of planning. It generally considers the perspective of the redevelopment agency to consider waterfront planning and development techniques. The specific issues which are addressed include changing the waterfront's image, improving accessibility and controlling the quality of the physical environment. An incremental approach to implementation is recommended, with emphasis upon controlling the quality of the public realm and the role of urban design guidelines to guide private development.

Public squares and open spaces for promenade have been a feature of Continental European cities since the Renaissance. In the seventeenth century purely recreational urban spaces began to be created in Britain and Ireland. The development of Dublin's green spaces, however, was delayed until after the Restoration, which saw the city transformed from a medieval walled city into a large, modern conurbation. Some of Dublin's open spaces were completely lost to development; others were embedded into the fabric of the new city. Green spaces were regularized into geometric shapes and used to entice developers and attract smart residents to new areas. The paper examines the development and metamorphosis of Dublin's ancient public spaces, looking at the activities that took place on these sites and their evolution from utilitarian areas of commonage to fashionable squares for promenade

The current deployment of large screens in city centre public spaces requires a substantial rethinking of our understanding of the relationship of media to urban space. Drawing on a case study of the Public Space Broadcasting project launched in the UK in 2003, this article argues that large screens have the potential to play a significant role in promoting public interaction. However, the realization of this potential requires a far-reaching investigation of the role of media in the construction of complex public spaces and diverse public cultures.

A great deal is at issue in the handling of the threat of terrorism in the United States today. Restrictions on the use of public space are a direct consequence, at the urban level, of what is happening. But beyond that, and beyond the various abuses of civil liberties and common sense that have been involved in the governmental misuse of the threat after 9/11, the most serious misuse may be the sale of the threat as a threat to existential security instead of as one danger among others to public safety. It has been manipulated for purposes having nothing to do with terrorism. The intended result has been to reinforce the positions of those in power, to displace the insecurity inherent in a capitalist free market system, and to limit further the freedom that is at the heart of the right to the city. The current treatment of public space illustrates the process.

This paper examines the relationship between space and the digital industries through everyday work practices in Shoreditch, London. Drawing on interviews with digital workers, the paper examines how work unfolds in multiple settings and how the built environment supports these work patterns. Digital work extends from the office or the residence (the base) to multiple settings (ancillary spaces) in what can be defined as an extended workplace. The study identifies micro and macro scale characteristics of the built environment that are relevant (spatial characteristics of semi-public and public spaces, access and control, location, and attributes of the neighbourhood) expanding the understanding of why and how place matters for these industries. A typology of ancillary spaces and some reflections on policy implications are advanced.

As urbanization progresses, open space becomes structured as units of progressively smaller sizes and with more pronounced physical and functional boundaries. This paper analyzes these Open Space Units (OSUs) in Flanders, and seeks how size of open space units, hence also spatial fragmentation, affects the evaluation of these units. The results clearly confirm a ‘fragmentation bias’, meaning a lower valuation of smaller units, which leads to a strategic gap and land use uncertainty concerning large stretches of area with high degree of fragmentation. This valuation is confronted with the contrasting and positive values expressed in a strategic open space project by local stakeholders about a typical peri-urban remnant open space unit. Overcoming the ‘fragmentation bias’ in open space valuation is a continuing challenge in planning and open space policies, especially in highly urbanized environments.

Since the early 1900's when internal open spaces became common features of English new towns and American subdivisions patterned after Radburn, planners have assumed that internal parks are desirable features in subdivision planning. However, developers in the United States have in general failed to include open spaces within new subdivisions, thus raising questions about their real economic benefits. This paper examines those benefits within the context of a Radburn-style subdivision in Dallas. Using survey and sales data, the results indicate that homeowners value the open space - both those who live directly on the internal greenbelts and those who do not. However, where the open space causes a reduction in private backyard space, homeowners do not appear to value public open space as highly as private space.

The paper examines four case studies of neighborhood parks in socially and ethnically diverse communities of Los Angeles in order to explore similarities and differences of their uses and assigned meanings. More specifically, the study utilizes structured field observations and surveys of users in order to examine sociocultural patterns of park use, the relevance of past models of park design, and the level of fit between current park form and contemporary user needs.

In a research project carried out in various neighborhoods in Stockholm, Sweden, we have developed a method for facilitating children’s influence on spatial planning. Our goal was to construct a vehicle for communication that could work in practice for both children and teachers as well as for planners. The method uses computerized GIS maps—a common tool in spatial planning. With little assistance, 10- to 12-year-old children map their routes and special places, mark activities and write comments. Teachers can also map routes and places used for education. The results have proved reliable and accessible by planners. Use of the mapping method within the school curriculum and in the planning process is broadly discussed in the paper.

Previous gang research has focused primarily on the attributes of individuals who join gangs. This ecological study of violent urban youth gangs examines the social, economic, and physical organization of places where gangs locate. Our goal is to understand those features of communities that either facilitate the formation of gangs or insulate an area from gang formation. By interviewing gang members and having them map places where they came together as a sociological group to “hang out,” we study what we label as the “set space” of gangs. Our study is analogous to criminological studies of where criminal acts occur rather than of the factors that lead an individual to commit criminal acts. This study indicates that gang set space is usually a very small geographic area, much smaller than neighborhoods or even census tracts. A probability (logit) model estimates the influence of various local area attributes on the presence of violent youth gangs in census block groups. Diminished social control—in the absence of capable guardians and physical abandonment of place—and underclass features increase the likelihood of observing violent youth gangs hanging out in a particular area.

A number of recent studies have used surveys of neighborhood informants and direct observation of city streets to assess aspects of community life such as collective efficacy, the density of kin networks, and social disorder. Raudenbush and Sampson (1999a) have coined the term “ecometrics” to denote the study of the reliability and validity of such assessments. Random errors of measurement will attenuate the associations between these assessments and key outcomes. To address this problem, some studies have used empirical Bayes methods to reduce such biases, while assuming that neighborhood random effects are statistically independent. In this paper we show that the precision and validity of ecometric measures can be considerably improved by exploiting the spatial dependence of neighborhood social processes within the framework of empirical Bayes shrinkage. We compare three estimators of a neighborhood social process: the ordinary least squares estimator (OLS), an empirical Bayes estimator based on the independence assumption (EBE), and an empirical Bayes estimator that exploits spatial dependence (EBS). Under our model assumptions, EBS performs better than EBE and OLS in terms of expected mean squared error loss. The benefits of EBS relative to EBE and OLS depend on the magnitude of spatial dependence, the degree of neighborhood heterogeneity, as well as neighborhood's sample size. A cross-validation study using the original 1995 data from the Project on Human Development in Chicago Neighborhoods and a replication of that survey in 2002 show that the empirical benefits of EBS approximate those expected under our model assumptions; EBS is more internally consistent and temporally stable and demonstrates higher concurrent and predictive validity. A fully Bayes approach has the same properties as does the empirical Bayes approach, but it is preferable when the number of neighborhoods is small.

Ordinary kriging, a spatial interpolation technique, is commonly used in social sciences to estimate neighborhood attributes such as physical disorder. Universal kriging, developed and used in physical sciences, extends ordinary kriging by supplementing the spatial model with additional covariates. We measured physical disorder on 1,826 sampled block faces across four U.S. cities (New York, Philadelphia, Detroit, and San Jose) using Google Street View imagery. We then compared leave-one-out cross-validation accuracy between universal and ordinary kriging and used random subsamples of our observed data to explore whether universal kriging could provide equal measurement accuracy with less spatially dense samples. Universal kriging did not always improve accuracy. However, a measure of housing vacancy did improve estimation accuracy in Philadelphia and Detroit (7.9 percent and 6.8 percent lower root mean square error, respectively) and allowed for equivalent estimation accuracy with half the sampled points in Philadelphia. Universal kriging may improve neighborhood measurement.

Public policies supporting market-oriented strategies to develop mixed-income communities have become ascendant in the United States and a number of other countries around the world. Although framed as addressing both market goals of revitalization and social goals of poverty deconcentration and inclusion, these efforts at 'positive gentrification' also generate a set of fundamental tensions - between integration and exclusion, use value and exchange value, appropriation and control, poverty and development - that play out in particular concrete ways on the ground. Drawing on social control theory and the 'right to the city' framework of Henri Lefebvre, this article interrogates these tensions as they become manifest in three mixed-income communities being developed to replace public housing complexes in Chicago, focusing particularly on responses to competing expectations regarding the use of space and appropriate normative behavior, and to the negotiation of these expectations in the context of arguments about safety, order, what constitutes 'public' space, and the nature and extent of rights to use that space in daily life.

The National Study of Protest Events (NSPE) employed hypernetwork sampling to generate the first-ever nationally representative sample of protest events. Nearly complete information about various event characteristics was collected from participants in 1,037 unique protests across the United States in 2010 to 2011. The first part of this article reviews extant methodologies in protest-event research and discusses how the NSPE overcomes their recognized limitations. Next, we detail how the NSPE was conducted and present descriptive statistics for a number of important event characteristics. The hypernetwork sample is then compared to newspaper reports of protests. As expected, we find many differences in the types of events these sources capture. At the same time, the overall number and magnitude of the differences are likely to be surprising. By contrast, little variation is observed in how protesters and journalists described features of the same events. NSPE data have many potential applications in the field of contentious politics and social movements, and several possibilities for future research are outlined.

The ground floors of buildings are a key element of the urban experience, yet the dynamics that shape frontages are largely unknown. This article delves into the forces and patterns behind the transforming relationship between architecture and public space in Western urban cores over the past century. After defining a methodology for structurally measuring the interactivity of ground floor frontages over time, the study focuses on two case study urban cores of Detroit, Michigan and The Hague, Netherlands. Through a combination of narra- tive historiography, detailed mapping and statistical studies a set of recommendations is generated to help urban designers and planners better understand and counter frontage decline. The two seemingly disparate cities are demonstrated to have undergone remarkably similar patterns of frontage interactivity erosion, with outcomes diverging as a result of an often reinforcing set of forces. Only upon understanding frontages as social, economic, cultural, political and technological constructs with physical, functional and connotative effects on public space will the profession be able to effectively steer the future of the architecture of public life.

Research has identified several factors that affect fear of crime in public space. However, the extent to which gender moderates the effectiveness of fear-reducing measures has received little attention. Using data from the Chicago Transit Authority Customer Satisfaction Survey of 2003, this study aims to understand whether train transit security practices and service attributes affect men and women differently. Findings indicate that, while the presence of video cameras has a lower effect on women's feelings of safety compared with men, frequent and on-time service matters more to male passengers. Additionally, experience with safety-related problems affects women significantly more than men. Conclusions discuss the implications of the study for theory and gender-specific policies to improve perceptions of transit safety.

Public monuments traditionally appear in high contrast to their landscapes, an effect that sets aesthetic, ideological and social distances. However, Manmale, counter-monuments, and counter-hegemonic monuments (eg the AIDS quilt, Rachael Whiteread’s House, Melbourne’s Another ViewWalking Trail, Tiananmen’s Goddess of Democracy, or Maya Lin’s Vietnam Memorial), challenge the norms of monuments in visuality, fixedness, and permanence, and suggest intricacies which mediate the interactivity of art, site and passers-by. In this paper, I consider three counter-hegemonic monuments in Vancouver, British Columbia – all installed in 1997/98 and all dealing with the issue of violence – sited within one neighbourhood. Via archival research, interviews, and extensive participant observations investigating how the monuments actually function in social memory rituals, I discovered that the characteristics of publicness in the landscapes that lay ‘beneath and before’ the monuments deeply affected their origins, designs, and current uses.

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.