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By studying the mathematical properties of metrics, we identify three fundamental characteristics of distance, which are optimality, detour and break. In this paper, we explore the implications of these properties for transport planning, urbanism and spatial planning. We state that distances contain the idea of optimum and that any distance is associated to a search for optimisation. Pedestrian movements obey this principle and sometimes depart from designed routes. Local suboptimality conveyed by public transport maps has to be corrected by interventions on public space to relieve the load on central parts of networks. The second principle we state is that detour in distances is most often a means to optimise movement. Fast transport systems generate most of the detour observed in geographical spaces at regional scale. This is why detour has to be taken into account in regional transport policies. The third statement is that breaks in movement contribute to optimising distances. Benches, cafe´s, pieces of art, railway stations are examples of the urban break. These facilities of break represent an urban paradox: they organise the possibility of a break, of a waste of time in a trip, and they also contribute to optimising distances in a wider network. In that sense, break should be considered as a relevant principle for the design of urban space in order to support a pedestrian-oriented urban form.

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.

Accessibility and mobility within the urban environment has been dictated by the design and layout of buildings and road infrastructure. Both, in their separate ways, have created problems of safety and crime which have conspired to limit pedestrian confidence and therefore movement and travel choice amongst particular groups. Benchmarking of accessibility does not tend to reflect everyday journeys and trips taken or desired, and the perceptual barriers felt by many people. This article reports on a five year research study into accessibility, urban design and social inclusion (AUNT-SUE), funded under the EPSRC's Sustainable Urban Environment programme. The development and validation of a street design index and evaluation of routes is presented through a test bed case study based on user consultation with groups experiencing barriers to pedestrian access, 'fear of crime' and therefore to engagement with the transport system and wider social inclusion. This involves the use of GIS-participation techniques and map walks with residents, integrated with digital data analysis and visualization of the whole journey environment. Particular attention is paid to the mobility and journey needs of users, as well as perceptual and safety issues, since these present some of the major barriers to transport access for vulnerable groups.

In response to Wirth's (1938) image of city dwellers as isolated individuals lacking strong ties to others, urban sociologists and network analysts have closely examined personal networks. Because neighbors are vital components of such networks, we examine three theoretical perspectives offered to explain the links between statuses and neighbor networks: social integration, need, and available time. Survey evidence from 690 adults in 81 Nashville, Tennessee neighborhoods best supports a social integration interpretation—those in statuses well integrated into society in general (female, middle-aged, married, and high-SES respondents) have larger networks within their neighborhoods. Need may be the inverse of integration, for low-SES persons, though maintaining smaller networks, have more frequent and intense contact with their neighbors.

We investigated the influence of neighborhood built form on sense of community in Perth, Western Australia. It was hypothesized that sense of community would be stronger in individuals living in pedestrian-friendly neighborhoods. Multivariate linear regression models explored associations between walking and sense of community, with progressive adjustment for objective and perceived neighborhood characteristics. Sense of community was positively associated with walking for transport and positive perceptions of neighborhood quality, and negatively associated with residential density. The findings highlight the influence of local area perceptions on sense of community that appeared to be more important than objective environment characteristics. However, the latter may influence perceptions, and this requires investigation.

Streets have become dangerous, unlivable environments, yet most people live on them. Streets need to be redefined as sanctuaries; as livable places; as communities; as resident territory; as places for play, greenery, and local history. Neighborhoods should be protected, though not to the point of being exclusionary. The neighborhood unit, the environmental area and the Woonerf are examined as models for the protected neighborhood. The criteria for a protected neighborhood depend on acceptable speeds, volumes, noise levels, reduction of accidents, and rights-of-way for pedestrians.

This paper presents a morphological study of 100 main street networks from urban areas around the world. An expansion in the scale of main street networks was revealed using a unique heuristic visual method for identifying and measuring the lengths of main street segments from each of the study areas. Case studies were selected and grouped according to corresponding urban design paradigms, ranging from antiquity to present day. This research shows that the average lengths of main street segments from networks of historic (i.e. ancient, medieval, renaissance, baroque and industrial) and informal case studies are much smaller relative to those from networks of more contemporary case studies (i.e. Garden City, Radiant City and New Urbanism). This study provides empirical evidence in support of prior, observational claims suggesting a consistent pattern in the smaller scale of main street networks from traditional urban areas, termed the ‘400-metre rule’. Additionally, it makes the case for further empirical research into similarly recursive spatial patterns within other elements of urban form (i.e. plots, blocks, etc.) that, if discovered, could aid in future urban design efforts to help provide the framework for more ‘human-scale’ urban environments.

The development and proliferation of mobile social networks have the potential to transform ways that people come together and interact in public space.These services allow new kinds of information to flow into public spaces and, as such, can rearrange social and spatial practices. Dodgeball is used as a case study of mobile social networks. Based on a year-long qualitative field study, this article explores how Dodgeball was used to facilitate social congregation in public spaces and begins to expand our understanding of traditional notions of space and social interaction. Drawing on the concept of parochial space, this article examines how ideas of mobile communication and public space are negotiated in the everyday practice and use of mobile social networks.

This paper reports findings from recent research examining the relationship between urban design and layout and aspects of social and communal life in urban neighbourhoods. To address this, six UK neighbourhoods of varying densities and layouts were selected for detailed investigation. Data on social interactions, social activities and social networks along with perceptions of the built and social environment of the neighbourhoods were collected through observations, questionnaire surveys and secondary data sources. Neighbourhood design and layout were analysed using spatial network and visibility graph analysis methods. Correlation and multiple regression tests were conducted to test the claimed associations. Findings indicate differences between socializing patterns and structure of social networks in high- and low-density areas. Low-density areas were associated with widely spread social networks and activities with very few strong relationships. In high-density neighbourhoods, respondents had small networks but stronger ties were found. Detailed investigation shows that much of this can be attributed to, among other physical factors: the location of public spaces, visibility from and to these spaces, visual links between neighbourhoods', typology and physical form of development rather than density alone. This indicates that some of the negative social impacts found within high-density urban development might be rectified with better design of neighbourhoods. It is clear that to deliver sustainable development, the 'compact city' will have to be designed with specific spatial and built environment characteristics.

As the obesity epidemic in children increases, it is important to consider the role of neighborhoods in supporting children's physical activity and healthy development, especially in low- income communities where obesity levels among children are higher than for their middle-income counterparts. I present a participatory and qualitative GIS approach to mapping children's own perceptions and use of their neighborhood for physical activity with ten and eleven year-olds growing up in a diverse low-income community in Denver, CO. Girls walk shorter distances to and use different types of community spaces for play and recreation from boys, some of which is explained by the differing environmental-socialization approaches employed by parents and carers. Children's perceptions of risk align spatially with features of the built environment, but do not correlate with reported crime. Results illustrate the utility of qualitative spatial analysis to understand relationships between children's perception, the built environment, and social factors that shape children's active transport, leisure, and recreation in their neighborhood. Children's local knowledge should be valued and solicited in community-level health and planning interventions to promote physical activity.

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.

This article examines the relationship between immigration and urban renewal in Naples during the 1990s through the conflicting representations and uses of Piazza Garibaldi, a large piazza located in front of the city’s central railway station. As well as the hub of the city’s public transport network, since the mid-1980s this piazza has been the multifunctional space for a number of immigrant groups. Re-envisioned as the ‘gateway’ to the city’s regenerated centro storico (historic centre) during the 1990s, the piazza became a focus of public debates on security, tourism and, in particular, immigration. I examine how these issues intersected with political discourses about a renewed sense of citizenship in redefining the piazza as a strategic but problematic public space. Drawing on ethnographic fieldwork and analysis of local newspaper reports, the article looks at the ways in which the piazza has been appropriated by different immigrant groups for social and economic purposes, and how, at the same time, they have been excluded from discourses about a ‘new’ Naples.

Drawing on the social disorganization tradition and the social ecological perspective of Jane Jacobs, the authors hypothesize that neighborhoods composed of residents who intersect in space more frequently as a result of routine activities will exhibit higher levels of collective efficacy, intergenerational closure, and social network interaction and exchange. They develop this approach employing the concept of ecological networks—two-mode networks that indirectly link residents through spatial overlap in routine activities. Using data from the Los Angeles Family and Neighborhood Survey, they find evidence that econetwork extensity (the average proportion of households in the neighborhood to which a given household is tied through any location) and intensity (the degree to which household dyads are characterized by ties through multiple locations) are positively related to changes in social organization between 2000–2001 and 2006–2008. These findings demonstrate the relevance of econetwork characteristics—heretofore neglected in research on urban neighborhoods—for consequential dimensions of neighborhood social organization.

Recent years have seen a resurgence of interest in the relation between networks and spatial context. This review examines critically a selection of the literature on how physical space affects the formation of social ties. Different aspects of this question have been a feature in network analysis, neighborhood research, geography, organizational science, architecture and design, and urban planning. Focusing primarily on work at the meso- and microlevels of analysis, we pay special attention to studies examining spatial processes in neighborhood and organizational contexts. We argue that spatial context plays a role in the formation of social ties through at least three mechanisms, spatial propinquity, spatial composition, and spatial configuration; that fully capturing the role of spatial context will require multiple disciplinary perspectives and both qualitative and quantitative research; and that both methodological and conceptual questions central to the role of space in networks remain to be answered. We conclude by identifying major challenges in this work and proposing areas for future research.

Using surveys collected from 10 major metropolitan cities across the world, this article examines the factors that affect the extent to which people feel connected to others who live in their neighborhood and feel proud and satisfied with life in their cities. The cities included in the analysis are: New York, London, Paris, Stockholm, Toronto, Milan, Berlin, Seoul, Beijing and Tokyo. We find that certain aspects of the built environment, the conditions of the public sphere, and the extent of positive social networks in the city are critically important for understanding residents’ connections to each other and to their cities. Our findings provide insights for policy makers and planners concerned with making cities viable and livable.

A healthy built environment is one which connects citizens together to create a sense of community. These are influential determinants of good mental and physical health. This paper presents an overview of key research on how the built environment supports the development of community as part of creating and sustaining places for health and well-being. Formal public places such as town squares, plazas, parks and gardens cultivate community in numerous ways. Informal public places such as those in between buildings, on the street, at the train station and bus stop are also important for social encounters and interaction. Careful design of open space, neighbourhood streets and buildings can encourage human interaction as part of community creation. Evidence is presented here as a ‘Places Framework’ to illuminate the ways in which place strengthens community. The paper concludes by discussing and critically evaluating policy implications for urban planners and designers. Major gaps in the research are identified and suggestions made for future investigative work to strengthen the evidence for building healthy communities through built environment interventions.

In Bangladesh, Dhaka is migrants' most important destination and has itself been fundamentally transformed through migration. But there is ‘no place’ for many migrants in Dhaka. Poorer migrants live in slums and many encroach on public space to sustain their lives – the new urbanites are taking their ‘right to the city’. In doing so, they not only draw on local resources. Their production of the urban space often relates directly to their migration trajectory, their translocal networks, and their simultaneous situatedness at multiple places. Migrants connect ‘the rural’ and ‘the urban’ and constitute translocal spaces, which contribute to re‐making Dhaka from below. This paper integrates current debates on translocality, informal labour, and subaltern urbanism to address two key questions on transient urban spaces: How do migration trajectories and translocality structure the urban poor's lives? How do migrants make use of local networks and translocal social relations to find work and appropriate ‘their place’ in the city? Empirical research on street food vendors in Dhaka, almost all of whom are internal migrants, builds the basis for my argument. I show that ‘translocal social capital’ and home‐bound identities can be important resources to gain access to urban labour markets and to appropriate one's place in the city. The paper argues that the poor use translocality for their livelihoods and thereby continuously re‐shape the face of the megacity of Dhaka.

Urban parks are community assets, providing people places to play and rest. Access to parks in urban environments promotes social equity and improves quality of life for surrounding neighborhoods. In this context, social equity is related to accessibility, i.e. the possibility of walking or biking from home to a public park, giving people who do not have access to a variety of entertainment an option that is a public good. This paper examines the spatial distribution of urban parks in the city of Curitiba, Brazil, and how it relates to the socio-economic conditions of surrounding neighborhoods. Curitiba is known for its urban parks; however, no systematic study has been conducted to verify which neighborhoods enjoy park access within walking distance and what the socio-economic differences are between the better and worse served neighborhoods. In addition, we investigate if access to green open space has improved between the last two decennial census, a period marked by unprecedented socio-economic affluence in Brazil. Research questions, to be addressed using spatial analysis, focus on equitable distribution, and spatial evolution of parks and social equity. Variables include measurable walking distances from census tracts to parks, income data from the 2000 and 2010 Brazilian decennial censuses, and qualitative data of urban parks in Curitiba. Findings offer recommendations for future implementation of additional parks in Curitiba so that all areas of the city have adequate green open space and all citizens have equal access to recreation and leisure opportunities.

How can the connection between public space and sense of community be evaluated? This paper asserts that, as a starting point, the measurement of the physical dimension of public space must be accomplished. Conceptually, the translation between public space and building sense of community, here defined as "the sense of belongingness, fellowship, 'we-ness,' identity, etc., experienced in the context of a [geographically based] collective" (Buckner, 1988:773),1 is seen as consisting of three interrelated dimensions. This paper describes the first dimension, the physical characteristics of public space, by offering a methodology for measuring public space differentials at the neighborhood level. Analysis of public space will thus be facilitated by a better characterization of the public domain: how does one neighborhood have "more" public space than another, constituting what some might view as a superior public realm? The method offered in this paper utilizes a particular vocabulary designed to measure aspects of the public realm which are seen, theoretically, as contributing to increased resident interaction and sense of community. The method builds on the work of Owens (1993) and Southworth and Owens (1993) to provide a practical measure of the "public realm." The goal is to facilitate the discussion of the use, meaning, and role of public space by delineating, in pragmatic terms, the geographic dimension of public life and how it varies from one neighborhood to the next. The basis of this differentiation are the public space design components embedded in new urbanist theory.

This paper examines the opportunities for social activities in public outdoor spaces associated with high-density residential living. This study surveyed activities in outdoor spaces outside three high-density residential communities in Brisbane. Results indicated that activity patterns in public outdoor space outside residential communities are different to general urban public outdoor space. This broadly, but not fully, supports current theories concerning activities in public space. That is some environmental factors have impacts on the level of social interaction. The relationship between outdoor space and a residential building may have a significant impact on the level of social activities. As a consequence, a new classification of activities in public space is suggested. In improving the level of social contact in public outdoor space outside a residential community, the challenge is how to encourage people to leave their comfortable homes and spend a short time in these public spaces. For residential buildings and public space to be treated as an integrated whole, the outdoor open spaces close to and surrounding these buildings must have a more welcoming design.