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Problem, research strategy, and findings: Around the globe, streets and sidewalks in cities are being contested as spaces that should be used for more than transportation. This article challenges our understanding of both property rights and public space by applying a property rights framework to situate sidewalk use debates. It analyzes and maps the sidewalk property regimes of Ho Chi Minh City, Vietnam, through a novel integration of surveying and ethnography. The case illuminates the feasibility of a mixed-use sidewalk that can be shared between various kinds of uses and users. A mixed-use sidewalk that is both cooperative and livable is possible if planners incorporate time into planning space in order to expand the sidewalk's flexibility and if local society can renarrate and enforce new legitimacies on the sidewalk. Takeaway for practice: Sidewalk space deserves more attention as an important public space. In our era of historic urbanization, we should reconceive sidewalks as a mixed-use space rather than an exclusively pedestrian zone. Moreover, North American planners would benefit from engaging with public space experiments happening in cities in the developing world. Research support: This research was supported by MIT's School of Architecture and Planning, Department of Urban Studies and Planning, and the Undergraduate Research Opportunities Program.

Public space is a topic of great interest for urban scholars and urban planners. Such space, like parks, sidewalks, and plazas, it is argued, can provide the common grounds where the inhabitants of a city meet, exchange ideas, even engage in a variety of cultural performances. This article reports on fieldwork about the use of public space in Shanghai today. We find a great diversity of uses, ranging from vendors who sell their wares to people who engage in heated and extensive political discussions to performers of Beijing opera and ballroom dancing. We also find that the local authorities use a light, and sometimes covert, hand in their oversight of inhabitants in such spaces. Finally, we discover that powerful social differences and inequalities between native inhabitants and working-class migrants, which have emerged during the period of economic reform and market transition, are now actively in evidence in the quality and use of public space in Shanghai. The article puts these findings within a broader theoretical context, concluding in the end that for many—though not all—inhabitants public man is alive and well in Shanghai.

In recent years, public space in many North American cities has been physically and socially layered through the construction of gradeseparated pedestrian systems. Case studies of downtown Houston, Minneapolis, and Toronto investigate the emerging geography of the grade-separated city by examining: how the growth of skyway and tunnel systems reconfigures the proximity of downtown activities to one another; how quasi-public space within these systems is designed and controlled by the private sector; and the way that downtown spaces-both on the street and within these systems-are used by the general public. A common set of patterns reveals the challenges to social diversity in the heart of the North American city.

The objective was to investigate associations between features of the physical environment and neighborliness. Measures of the physical environment, including sidewalks, front porches, traffic-calming devices, bars on windows, and the presence of litter or graffiti, were collected using a systematic audit instrument in 10 neighborhoods in Portland, Oregon. Generalized linear regression models were created to model the odds of increasing neighborliness given access to the physical-environment factors of interest. The authors observed a greater probability of higher levels of neighborliness as the total number of positive physical-environment characteristics increased (cumulative odds ratio [95% confidence interval] = 1.69 [1.16, 2.45]) and the results were unchanged after controlling for race, self-reported health, perception of safety, years of neighborhood residence, age of house, market value of house, and proportion of homeowners in neighborhood. Modifiable features of the physical environment may be one mechanism through which people can enhance neighborliness.

People reside in homes; however, they live in neighbourhoods comprised of parks, sidewalks, restaurants, shops and other everyday places. Whether current or potential neighbourhood residents feel at home in these places remains an under theorised aspect of neighbourhood change. Rather than housing policy or real estate development, this essay explores public space as a mechanism of neighbourhood change. Drawing from ethnographic research in the Latino barrios of North Denver, It deconstructs the history of one small yet vital public space—la Raza Park. During the 1970s, this park, its pool and the many events it grounded, built community cohesion and fostered cultural identity. In 1981, city authorities went so far as to deploy a SWAT team to la Raza Park to enforce a permit violation. The following summer, they demolished its pool. North Denver is now gentrifying rapidly. This essay stitches these disparate-seeming events into a story of neighbourhood change.

This article examines park use in relation to neighborhood social (safety and poverty) and urban form (pedestrian infrastructure and street network pattern) characteristics among youth and adult subpopulations defined by age and gender. We utilized System for Observing Play and Recreation in Communities (SOPARC) and Geographic Information Systems to objectively measure park use and park and neighborhood characteristics in 20 neighborhood parks. Heterogeneous negative binomial regression models indicated that the relationship between park use and types of activity settings, and park use and neighborhood attributes vary by age and gender. In general, the study found that park and activity setting size; activity settings such as playgrounds, basketball courts, pool and water features, shelters, and picnic areas; and availability of sidewalks and intersections in the park’s neighborhood were positively associated with park use, whereas crime, poverty, and racial heterogeneity of the surrounding neighborhood were negatively associated with park use.

What we have are closed, self-absorbed buildings. What we would like to have is open, versatile, interesting and safe cities. The challenge is how to incorporate large buildings in cities where people have the same small stature and slow pace they had hundreds of years ago. There is now a considerable confusion in the gap between large and small scales and between ‘quick’ and ‘slow’ architecture. Ground floor facades provide an important link between these scales and between buildings and people. For public space and buildings to be treated as a whole, the ground floor facades must have a special and welcoming design. This good, close encounter architecture is vital for good cities.

Creating “community” has long been a goal of urban planners. Although such rhetoric abounds in planning circles, what it all means is unclear. In this article, the authors review the community psychology and urban plan- ning literature, defining sense of community within the context of how the built environment might facilitate or impede it. They then present their research, which tests the effects of “main street” on sense of community in four San Francisco neighborhoods. Results indicate that respondents in neighborhoods exhibiting characteristics of a main street town (Bernal Heights and West Portal) have significantly higher sense of community than do respondents from a high-density neighborhood (Nob Hill) and from a more suburban-style city neighborhood (Sunset).

This study examined patterns of activity in street-side public spaces in one city. Eye-level videotape was employed to document public activity, characteristics of the population and characteristics of the downtown street-side surroundings. A scheme for organizing the data is presented. Patterns of use, disaggregated across activities, groups and time periods were derived, and limitations and implications are discussed.

This paper reports the findings from a research project that examines the relationship between urban design and the physical environment, and aspects of social and communal life in suburbs. Australian suburbs are perceived to be lacking in vitality and sociability. To address this, three suburban commercial streets were selected for investigation. Through documents and maps of the residents’ activities and behaviour, this study aims to identify the popular zones of activity and investigate the physical characteristics that encourage a sociable atmosphere in activity zones. The observation of activities in the three streets has been registered in tables relative to the date and time of occurrence. According to the behavioural mappings, the zones of activity are mostly shaped around pavement cafes and popular everyday food stores. Since more than half the activities have been observed to be initiated from the pavement cafes, this paper will investigate how the physical qualities of commercial streets such as the width of the pavements, personalization, soft edges and greenery have contributed to the pavement café culture in the selected neighbourhood centres.

We examine 5,603 property transactions in Jefferson County, Alabama that take place between 2004 and 2008. Using OLS regressions, we estimate the extent to which differences in walkability, as measured by Walk Score, can explain the variability in land values. We find that after controlling for population growth and lot size, land values generally increase with walkability and that this result is stable over time. However, we find evidence that this impact reverses as neighborhoods become more car-dependent. This car dependency increases as the distance from the central business district increases. We consider the implications of our findings on mixed-use developments in what we believe is the first study to address walkability in this context of sustainable development.

In the last ten years environmental sociologists have started to explore the relations between human behavior and the physical environment. This study tests some of the ideas of Jane Jacobs on how neighboring and crime are affected by physical diversity in cities. While neighboring and crime are found to be related to diversity as defined by Jacobs, neighboring is not related to crime, which is also predicted by her theory. The implications for urban planning are considered.

The collection of large-scale administrative records in electronic form by many cities provides a new opportunity for the measurement and longitudinal tracking of neighborhood characteristics, but one that will require novel methodologies that convert such data into research-relevant measures. The authors illustrate these challenges by developing measures of “broken windows” from Boston’s constituent relationship management (CRM) system (aka 311 hotline). A 16-month archive of the CRM database contains more than 300,000 address-based requests for city services, many of which reference physical incivilities (e.g., graffiti removal). The authors carry out three ecometric analyses, each building on the previous one. Analysis 1 examines the content of the measure, identifying 28 items that constitute two independent constructs, private neglect and public denigration. Analysis 2 assesses the validity of the measure by using investigator-initiated neighborhood audits to examine the “civic response rate” across neighborhoods. Indicators of civic response were then extracted from the CRM database so that measurement adjustments could be automated. These adjustments were calibrated against measures of litter from the objective audits. Analysis 3 examines the reliability of the composite measure of physical disorder at different spatiotemporal windows, finding that census tracts can be measured at two-month intervals and census block groups at six-month intervals. The final measures are highly detailed, can be tracked longitudinally, and are virtually costless. This framework thus provides an example of how new forms of large-scale administrative data can yield ecometric measurement for urban science while illustrating the methodological challenges that must be addressed.

This article examines the new phenomenon of “citizens’ groups” in contemporary Mumbai, India, whose activities are directed at making the city’s public spaces more orderly. Recent scholarship on Mumbai’s efforts to become a “global” city has pointed to the removal of poor populations as an instance of neoliberal governmentality as espoused by the Indian state following the “liberalization” of the economy in the early 1990s. However, in this case, it is these civil society organizations, not the state—whose functionaries in fact benefit from a certain element of unruliness on the streets—who are the agents of increased control over populations and of the rationalization of urban space. This article, based on fieldwork-based research, argues that the way in which citizens’ groups exclude poor populations from the city is more complex than a straightforward deployment of neoliberalism, and is imbricated with transnational political economic arrangements in uneven and often inconsistent ways. In particular, this article explores how civic activists in these organizations envision their role in the city, and how their activism attempts to reconfigure the nature of citizenship. For instance, civic activists consider themselves to be the stewards of the city’s streets and sidewalks, and wage their battles against what they consider unruly hawkers, a corrupt state, and a complacent middle-class public. Moreover, civic activists render street hawkers’ political claims illegitimate by speaking on behalf of the abstract “citizen” of Mumbai, thus implying that hawkers’ unions speak only on behalf of the vested interests of a single population. In this way, they mobilize a normative notion of civil society in order to exclude the vast segment of city residents who either sell or buy goods on the street. In doing so, the civic activists transform the discourse and practice of politics in the city, so that, ironically, while on one hand using the rhetoric of citizen participation, they in fact undermine the radically heterogeneous forms of democratic political participation the city offers.

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.

Public realm schemes are being introduced in urban areas without the usual delineation between the footway and carriageway provided by kerb edges. Concern has been expressed about the resulting spaces on behalf of the approximately two million people in the UK who are blind or visually impaired. This paper questions these concerns and presents the results from a questionnaire and in-depth interviews, and observational studies of blind and visually impaired people navigating in urban streets and spaces with and without shared surfaces. They show that blind and visually impaired people can identify many different surface types and delineators, and they use these, along with other features of the urban environment, in creative ways to identify their location and guide themselves. Shared Space schemes need to preserve a safe area for pedestrians, they need to provide a rich physical environment of contrasts in terms of surface tactility, colour contrast, and the enhancement of sound and other sensory clues.

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.

This article explores the relationship between pavement cafés, street life and urban public social life. It argues that the licensing of public entertainment and the enforcement of liquor licences and rigid opening times have helped to undermine public social life in English cities. Attitudes which first gained ascendancy in the 1890s have remained dominant and, broadly speaking, unchanged. Nevertheless, there has been a recent and fairly rapid growth in wine bars, cafés and bistros in London and some other English cities. The paper explores whether these help to stimulate public social life. Reference is made to research in Holland and Denmark, and also recent experience in London and Manchester. The paper concludes that city policy makers should, in the short term at least, act to stimulate café culture. Some anti-social and behavioural problems might well require an element of control, and not all urban areas are suited to café culture. Yet in a technological age, café culture represents one of the few remaining opportunities for public sociability. Where it creates a nuisance, it could and should be controlled but this is not the same thing as exercising an all-persuasive moral control which has its roots in Victorian England.

Although many low-income urban areas are highly walkable by conventional measures such as population density or land use mix, chronic diseases related to lack of physical activity are more common among residents of these areas. Disparities in neighborhood conditions may make poor areas less attractive environments for walking, offsetting the advantages of density and land use mix. This study compared poor and nonpoor neighborhoods in New York City, using geographic information systems measures constructed from public data for US census tracts within New York City (N = 2,172) as well as field observation of a matched-pair sample of 76 block faces on commercial streets in poor and nonpoor neighborhoods. Poor census tracts had significantly fewer street trees, landmarked buildings, clean streets, and sidewalk cafes, and higher rates of felony complaints, narcotics arrests, and vehicular crashes. The field observation showed similar results. Improving aesthetic and safety conditions in poor neighborhoods may help reduce disparities in physical activity among urban residents.