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(no abstract available) Introduction: There are significant differences in physical inactivity in various geographical areas and among demographic groups. Previous research suggests that walking is the most common form of physical activity; however, not all built environments support walking for recreational or transportation purposes. Objective: The purpose of this study was to assess the extent to which area-level factors, poverty rate and racial distribution, are associated with aspects of the street-scale environment (i.e. sidewalk walkability and physical disorder) using community audits.

Residential neighbourhoods developed using various techniques in Kathmandu by both the public and private sectors have not only provided a poor urban setting and failed to address socio‑cultural needs, but are also poor at building a community and creating links to the built environment, with the result that the planned areas lack a sense of place and the inhabitants lack a feeling of home. Although traditional neighbourhoods in the historic core area had many features of a good residential neighbourhood in the past, they are currently undergoing rapid destruction. The residents of these neighbourhoods have little awareness of these issues. The existing legal and institutional frameworks are inadequate and ineffective and cannot address these problems, and so the formulation of design guidelines, their strict implementation, and enhancement of socio‑cultural events including social networking are recommended for future residential neighbourhood development.

This study systematically examines the physical context of crime on urban residential blocks. A conceptual framework for understanding the relationship of the objective permanent (defensible space) and transient (territorial markers and incivilities) physical environment and the subjective environment to crime is presented. Forty-eight blocks were selected from three working-class urban neighborhoods. Data were obtained from four sources: a telephone survey of 1081 randomly sampled residents, a 15-month follow-up survey (n = 471), block-level police records of 1190 crime complaints, and the Block Booster Environmental Inventory--a new procedure for objectively measuring physical signs of disorder, territoriality and the built environment of 576 homes on all 48 blocks. Five different indicators of block crime were used: perceived crime and delinquency, reported serious and 'quality-of-life' crimes, and surveyed victimization rate. All data were aggregated to the block level. Although the various measures of crime were not consistently intercorrelated, objective environmental items correlated more strongly and consistently with the crime indicators than did the subjective environment, even after controlling for the demographic profile of the block. Defensible space features of the built environment, demographics and, to a lesser extent, the transient environment (disorder and territoriality) contributed significant variance to a series of regression equations explaining up to 60% of the variance in block crime. Implications for environmental criminology and for community policing and crime prevention are discussed.

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To what extent does the density of the tree cover in a city relate to the amount of social capital among neighbors? To address this question, we linked social survey data (N = 361) from the Baltimore Ecosystem Study with socioeconomic, urban form, and green space data at the census block group level using a geographic information system. We found a systematically positive relationship between the density of urban tree canopy at the neighborhood block group level and the amount of social capital at the individual level (r = .241, p < .01). Multiple regression analyses showed that tree canopy added a 22.72% increase in explanatory power to the model for social capital. This research adds a new variable—neighborhood tree canopy—to the typologies of green space that affect human social connection. Trees are a relatively inexpensive and easy intervention to enhance the strength of social ties among neighbors.

Definitions of environmental child friendliness offer broad criteria that are not easy to study or assess. We suggest that due to this broadness, these definitions have produced surprisingly few attempts to evaluate how child-friendly various types of physical environments are. The purpose of this study is to analyse how the structure of the built environment contributes to environmental child friendliness. We define child friendliness by two central criteria: children’s possibilities for independent mobility and their opportunities to actualize environmental affordances. We study how built environment qualities condition environmental child friendliness in place-based ways by asking children and youth in Turku, Finland, to tell about their meaningful places and their mobility to these. The data consists of over 12,000 affordances, localized by the respondents. This experiential and behavioural place-based knowledge is combined with objectively measured data on residential and building density, and quantity of green structures. Moderate urban density seems to have child-friendly characteristics such as an ability to promote independent access to meaningful places and the diversity of affordances. We find that affordances situated on residential areas are likely to be reached alone, whereas access to affordances situated in densely built urban cores is less independent. The proportion of green structures is not associated with independent access. The diversity of affordances is highest in areas that are densely populated and not very green. Green areas are important settings for doing things, and green structures around emotional affordances increase the likelihood of liking the place significantly. Combining children’s place-based experiences with information derived from objective measurable qualities of the physical environment provides a valuable methodological contribution to studies on environmental child friendliness, and the two proposed criteria of child friendliness are supported by this study. There is no one environment that is child-friendly, but different environments have different uses and meanings.

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.

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.

Analysis of property sales in the vicinity of 1,294-acre Pennypack Park in Philadelphia indicates a statistically significant rise in land value with closeness to park, when allowance is made for effect of type of house, year of sale, and special characteristics such as location on corner of block. Location rent due to the park ranges from approximately $11,500 per acre 40 feet from the park to $1,000 at 2,500 feet. It accounts for 33 percent of land value at 40 feet, 9 percent at 1,000 feet, and 4.2 percent at 2,500 feet. Each acre of parkland may be said to generate a value of $2,600 in location rent.

AIDS media lead unexpected lives once distributed through urban space: billboards fade, posters go missing, bumper stickers travel to other cities. The materiality of AIDS campaign objects and of the urban settings in which they are displayed structures how the public interprets their messages. Ethnographic observation of AIDS media in situ and interview data reveal how the materiality of objects and places shapes the availability of AIDS knowledge in Accra, Ghana. Significantly for AIDS organizations, these material conditions often systematically obstruct access to AIDS knowledge for particular groups. Attending to materiality rethinks how scholars assess the cultural power of media.

Thermal comfort is an important issue to be considered in the design of urban squares. This study hypothesized that thermal experience can be affected by the perception of spatial structures and materials, which can be influenced by urban design. Therefore, surveys were conducted in three Dutch squares (in Den Haag, Eindhoven and Groningen, respectively) to identify relationships between people’s long-term thermal experience and three factors: width of the square, spatial openness and appearance of materials. The results reveal that all three factors have an influence: Dutch people experience thermal discomfort when spaces are ‘too wide’, ‘too open’ and consist of ‘cold’ materials.

This paper proposes an essentially new theory of urban space based on information theory and the laws of optics. The use of urban space is linked to the information field generated by surrounding surfaces, and on how easily the information can be received by pedestrians. Historical building exteriors usually present a piecewise concave, fractal aspect, which optimizes visual and acoustical signals that transmit information content. Successful urban spaces also offer tactile information from local structures meant for standing and sitting. The total information field in turn determines the optimal positioning of pedestrian paths and nodes. This complex interaction between human beings and the built environment, incredibly neglected in our times, explains why so many historical urban spaces provide an emotionally nourishing environment.

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.

There is growing awareness among many city councils that their downtowns or central business districts have become bland or devoid of sufficient cultural activity to attract the highly skilled, creative workforce that is seen as a prerequisite for competitive success. This paper examines a recent set of policy initiatives to have emerged from the City of Sydney Council that has explicitly sought to mitigate the negative design outcomes of earlier phases of modernist office development through the promotion of a ‘finer grain’ urbanism, based around support for small shops and services, civic spaces oriented towards pedestrians and the reinvigoration of intra-block laneways enlivened by small bars and cafes. The noted Danish urban designer Jan Gehl was an important agent in the development of these strategies, along with the success of similar policies in Melbourne, illustrating the significance of globally operative design professionals and inter-city learning. However, these policies have not gone uncontested, and the paper examines the political context that surrounds their implementation in central Sydney.

Increasingly, scholars suggest thinking of the street as a social space, rather than just a channel for movement. Studies that address the relationships between social behavior and environmental quality of the street tend to separate the study of physical features from land uses and hence do not address the interrelationships between behavioral patterns and physical features of the street and its sociability. This article is an empirical examination of behavioral responses of people to the environmental quality of neighborhood commercial streets. Structured and semistructured observations are used to study stationary, lingering, and social activities on three neighborhood commercial streets. Eleven land use and physical characteristics of buildings and the street are identified based on the literature review and extensive observations. These are measured and tested to understand which characteristics support stationary, lingering, and social activities. The findings reveal that people are equally concerned with the social, land use, and physical aspects of the street. Seating provided by businesses, seating provided by the public authorities, businesses that are community places, personalized street fronts, and sidewalk width particularly contribute to stationary and social activities on neighborhood commercial streets.

By measuring twenty streetscape features and numerous other variables for 588 blocks in New York City, we were able to identify variables that explain pedestrian traffic volumes. We found significant positive correlations between three out of twenty streetscape features with pedestrian counts after controlling for density and other built environmental variables. The significant streetscape features are the proportion of windows on the street, the proportion of active street frontage, and the number of pieces of street furniture. This study provides guidance for streetscape projects that aim to create walkable streets and pedestrian-friendly environments.

Throughout recent decades, socially-mixed neighborhoods have become a key element of urban policy and debate. This paper argues, with Amsterdam as an empirical case, that the design, layout and everyday use of social space—including public and private space—is of key importance in understanding the experiences and perspectives of social- mix policies amongst ‘urban practitioners’, such as planners, architects and management personnel. While the promotion of ‘liveability’, through the management of social problems, is often highlighted as a key element of social-mix policies, the findings presented indicate the degree to which the mixing of different groups according to ethnicity, race and social class presents a number of new challenges for liveability and management within both public and private space. Furthermore, it is argued that these challenges play a significant role in dictating the scale at which social mixing takes place, from the urban block to the street and at the neighbourhood level. It is concluded that a greater amount of attention is needed to such factors in understanding the dynamics of social interaction in public and private communal space when seeking to understand the everyday realities of socially- mixed neighborhoods.

This article discusses how ever-increasing video-surveillance is changing the nature of urban space. The article evaluates whether surveillance can be seen as a means of making space safer and ‘more available’. The main focus is on surveillance in publicly accessible spaces, such as shopping malls, city streets and places for public transport. The article explains how space under surveillance is formed, and how it is related to power structures and human emotions. Space is conceptualized from various viewpoints. Three concepts of space are postulated: space as a container, power-space and emotional space. The purpose is not to construct a meta-theory of space; rather, the concepts are used as ‘tools’ for exploring the issue of surveillance. It is argued that video-surveillance changes the ways in which power is exercised, modifies emotional experiences in urban space and affects the ways in which ‘reality’ is conceptualized and understood. Surveillance contributes to the production of urban space.

Using evidence from Cusco, Peru, the paper examines the effects of the planned displacement of informal traders from city-centre streets. Although more than 3500 traders were relocated to new off-centre markets, the research identifies the emergence of 'unplanned' alternative city-centre locations for informal trade, especially the new courtyard markets. The municipal-led changes, influenced strongly by concerns to enhance tourism, reveal a process which displays many of the hallmarks of gentrification. Lower-class traders were displaced from city-centre streets for the benefit of middle-class tourists and local people. There was also gentrification of the trading activity itself: by manipulating stall allocation and pricing structures to exclude the poorest traders from the new higher-quality municipal markets. The changing pattern of informal trading can be viewed as an unconventional 'barometer' of the progress of policy-led gentrification, applicable to other cities in the developing world.

This paper examines the interplay between informal social control, civil unrest and local crime management in Belfast. Official crime management is the responsibility of the police, but where this role is contested, 'popular' or local forms of crime management occur. The local management of crime is accomplished in certain localities in Belfast by several mechanisms that extend beyond the policing role of the paramilitaries, and popular crime management is rooted in social processes, such as the survival of community structures, extended family kinship patterns, neighbourliness and legitimate authority accorded to community representatives, which constitute important informal social controls. Informal social control is recognized as important in inhibiting crime, but this paper reports on its role in the management of crime in the absence of reporting it to the police. These informal social controls are localized, being mediated by class, communal redevelopment, civil unrest and other social transformations affecting the locality. In this respect, political violence has helped, locally, to protect some areas from the worst vagaries of community breakdown and dislocation, with a positive effect on crime management. These issues are explored ethnographically by means of in-depth qualitative research.