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This paper develops an analytical framework to place the rise of open source urbanism in context, and develops the concept of the ‘right to infrastructure’ as expressive of new ecologies of urban relations that have come into being. It describes, first, a genealogy for open source technology, focusing in particular on how open source urban hardware projects may challenge urban theory. It moves then to describe in detail various dimensions and implications of an open source infrastructural project in Madrid. In all, the paper analyses three challenges that the development of open source urban infrastructures is posing to the institutions of urban governance and property: the evolving shape and composition of urban ecologies; the technical and design challenges brought about by open source urban projects; and the social organisation of the ‘right to infrastructure’ as a political, active voice in urban governance. In the last instance, the right to infrastructure, I shall argue, signals the rise of the ‘prototype’ as an emerging figure for contemporary sociotechnical designs in and for social theory.

In the networked information and knowledge-based economy and society, the notions of ‘open’ and ‘openness’ are used in a variety of contexts; open source, open access, open economy, open government, open innovation – just to name a few. This paper aims at discussing openness and developing a taxonomy that may be used to analyse the concept of openness. Are there different qualities of openness? How are these qualities interrelated? What analytical tools may be used to understand openness? In this paper four qualities of openness recurrent in literature and debate are explored: accessibility, transparency, participation and sharing. To further analyse openness new institutional theory as interpreted by Williamson (2000) is used, encompassing four different institutional levels; cultural embeddedness, institutional environment, governance structure and resource allocations. At what institutional levels is openness supported and/or constrained? Accessibility as a quality of openness seems to have a particularly strong relation to the other qualities of openness, whereas the notions of sharing and collaborative economics seem to be the most complex and contested quality of openness in the knowledge-based economy. This research contributes to academia, policy and governance, as handling of challenges with regard to openness vs. closure in different contexts, territorial, institutional and/or organizational, demand not only a better understanding of the concept, but also tools for analysis.

Planners and urban designers place high value on public open spaces, because of the latter's contribution to the quality of life and social interaction of residents in an urban development. Many urban theorists consider open space as an important component of a healthy urban environment. It is well established in the literature that the utilisation of public space varies from context to context. This article investigates whether the utilisation of open space at the neighbourhood level is more associated with the physical and functional properties of open space or if it varies across different cultures and contexts of cities. This research adopts the method of comparative analysis, involving three case studies from different cultures, and climatic and geographical contexts. In each of these three cities, the opinions of residents and visitors about public open space were obtained and observation surveys were conducted to measure the utilisation of these spaces. The research found that the utilisation of public space at various levels of neighbourhood significantly differs between cities because of the local context, such as culture, social values and climate, instead of just being due to the physical and functional properties of open space.

The disappearance of public spaces from the urban realm is a sign of the de-individuation and asocialization of the modern individual. However, cities still provide important tools for reclaiming our lost public life. The aim of this essay is to approach industrial heritage, usually considered a conservation issue, from a different perspective, as a tool for individuation and socialization. In order to do this, we start by describing the effects of capitalism and globalization on public open spaces, and then link this to governments’ privatization policies for industrial heritage. We show how industrial landscapes could function as public spaces. Finally, we explain how, in the absence of other public open spaces, industrial landscapes could be used for public purposes to meet the social needs of humans, and could thus be instrumental in the proliferation of our rituals.

Temporary uses of vacant urban spaces are usually not foreseen in conventional urban planning and have often been linked to economic or political disturbances. In New Zealand, Christchurch’s vacant spaces came into existence after the city was hit by several devastating earthquakes in 2010 and 2011. Parallel to the ‘official’ rebuild dis- course, temporary uses have emerged on vacant post-earthquake sites including community gardens, urban agriculture, art installations, event venues, eateries and cafés, and pocket parks. Based on the review and analysis of exemplary transitional community-initiated open spaces and correlated literature, the paper looks at how the post-disaster urban context in Christchurch has influenced particular aspects of temporary urbanism in comparison with case studies in non-disaster environments. By focusing on the anticipated benefits of community-initiated open spaces, the paper dis- cusses the relevance of temporary uses of vacant urban spaces for urban sustainability in relationship to concepts of community resilience and raises questions about possible long-term values.

Garrett Hardin's 1968 essay "The Tragedy of the Commons" famously decried the vulnerability of finite communal resources to overexploitation. Yet collective accessibility to and ownership of resources need not necessarily lead to their mismanagement or abuse; rather, the practice of sharing resources can engender positive environmental, social, economic, and political impacts. Social capital, as both the source and product of relational interactions which occur within public space, constitutes one of these benefits. This paper investigates the relationship between temporary communal spaces and social capital through a case study of the Commons project in Christchurch, New Zealand. Generated by both the space itself and the interactions that occur within it, the social capital created in and through the Commons has become a powerful symbol of recovery in a city recovering from disaster. Instead of the tragedy of the commons, therefore, this paper presents the story of the Commons of the tragedy and explores the ways in which social capital has been fostered in and through this space.

The development of downtown public space has been increasingly defined by agreements negotiated between the public and private sectors. In the last decades the majority of downtown public space has occurred in the form of urban plazas, built as integral parts of privately owned office and retail complexes. In this paper we document the private production of public open space in the downtown areas of Los Angeles and San Francisco - two cities that have used distinctively different policy approaches in forming public-private partnerships. We examine how the process of public open space creation is affected by the culture of planning and development, and discuss similarities and differences in the imagery and form of plazas in the two cities. It is found that urban plazas are the reflection of a market-driven urbanism. As such they are quite homoge- neous in their form despite differences in the planning style and development process encountered in the two California cities.

The paper explores the extent to which inhabitants of Abu Dhabi find ways circumvent official notions of order as it pertains to the use of open public spaces in the city. To that effect, the study focuses on informal modes of urbanity examining and mapping various forms of informal activities that still persist in the city. The study relies on field research carried out in Abu Dhabi's central area, content analysis of media reports, and interviews with officials and city residents. This will be contextualized and situated within the overall urban development Abu Dhabi. These contemporary modes of informal urbanism will be mapped through a survey of the city's public spaces. A series of vignettes offers a portrayal of the diverse ways in which residents have constructed an alternative order. The overall aim is to construct a 'narrative of informality'—a view from below offering a more substantive assessment of people's interaction with, and relation to, the built environment. The paper begins with a theoretical framework aiming at situating the study within the overall discourse known as 'informal urbanism' the study of the everyday which, while prevalent to various degrees within urban theory, has been receiving renewed emphasis. The overall value for mapping activities both at the level of urban theory and for the urban development of Dhabi is discussed in the conclusion.

Most theoretical perspectives on neighborhood effects on youth assume that neighborhood context serves as a source of socialization. The exact sources and processes underlying adolescent socialization in disadvantaged neighborhoods, however, are largely unspecified and unelaborated. This article proposes that cross-cohort socialization by older neighborhood peers is one source of socialization for adolescent boys. Data from the National Educational Longitudinal Survey suggest that adolescents in disadvantaged neighborhoods are more likely to spend time with older individuals. I analyze qualitative interview data from 60 adolescent boys in three neighborhoods in Boston to understand the causes and consequences of these interactions and relationships. Some of the strategies these adolescents employ to cope with violence in disadvantaged neighborhoods promote interaction with older peers, particularly those who are most disadvantaged. Furthermore, such interactions can expose adolescents to local, unconventional, or alternative cultural models.

There has been considerable debate over "New Urbanism" as a design strategy for adapting physical space to human needs. Among the interesting questions is whether people are willing to pay a premium to be able to live in areas characterized by New Urbanism design principles. If so, this willingness should be reflected in housing values. We test the hypothesis that urban design, specifically the design attributes associated with New Urbanism, are reflected in housing prices, using a data set for Haifa, Israel. House sales from 1988 through 1996 are analyzed for three neighborhoods in which there are similar socioeconomic compositions, public services, schools, property taxes, and other amenities. One of the neighborhoods has many characteristics of New Urbanism design, while the other two are more traditional urban or suburban developments. Hedonic regression analysis is used to control structure-specific characteristics, and an analysis of the regression values across neighborhoods shows a statistically significant price premium in the New Urbanism neighborhood. The evidence suggests that persons are willing to pay for living in a New Urbanism neighborhood, other things held equal.

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.

Urban agriculture (UA) is spreading across vacant and marginal land worldwide, embraced by government and civil society as source of food, ecosystems services and jobs, particularly in times of economic crisis. ‘Metabolic rift' is an effective framework for differentiating UA's multiple origins and functions across the Global North and South. I examine how UA arises from three interrelated dimensions of metabolic rift—ecological, social and individual. By rescaling production, reclaiming vacant land and ‘de-alienating’ urban dwellers from their food, UA also attempts to overcome these forms of rift. Considering all three dimensions is valuable both for theory and practice.

Landscape urbanism is articulated against the purported failures of traditional urban design practices to conceptualize adequately the transience, adaptability, and ecological complexity demanded by contemporary urbanism. This paper engages Giambattista Nolli’s 1748 map of Rome, a seminal example of the figure ground representational method, to highlight some contradictions in landscape urbanism’s texts and projects. Whereas the figure ground is often reduced to a binary black and white image, Nolli’s map illustrates the intertwining of public and private spaces, through rendering detailed attributes of site, infrastructure, history, and architecture. Also considered is the asser- tive restructuring of disciplinary influence within what Linda Pollak identifies as ‘con- structed ground.’ This reclamation constitutes a re-territorializing of landscape architecture through re-engagement of the urban fabric, as well as the more aspirational and necessary re-territorializing of design through intentional consideration of ecological complexity in the making of public urban spaces.

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.

Previous research has revealed important differences in architectural evaluation between design professionals and the lay public, with such differences commonly assumed to be the result of professional education. However, few attempts have been made to determine the actual source of such differences, and there is little evidence that these are actually the result of training or education. This paper summarizes the findings of a study which set out to investigate these issues, specifically focusing on differences in architectural interpretation between the lay public, planning students, and practicing planning professionals, a group often neglected in studies of environmental aesthetics. These interpretations were examined utilizing multiple sorting and ranking procedures, with the respondents asked to sort fifteen examples of contemporary architecture according to criteria of their own choice. The results revealed both commonalities and differences in evaluation between the various groups, with the differences particularly pronounced between planners and the public. The results lend support to the view that education is a key factor in the acquisition of aesthetic values and also suggest that training encourages homogeneity of aesthetic tastes. This study thus corroborates and expands the findings of studies by other researchers by suggesting that there are significant relationships between expertise, attitude, and interpretation which may have important implications for planning practice.

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.

What features of the physical environment may support women to breastfeed in the public space? Based on in-depth interviews with eight women who were breastfeeding during the research period, this article explores this question. Three factors were examined as contributing to the comfort of nursing women in public space: peer support, a sense of protection, and cultural signifiers. Using five scales of physical attributes, tested through a visual research tool, a range of public spaces were examined to give insight into the features that contribute to women’s ability and willingness to nurse in them. The results show that a sense of place attachment does not affect women’s willingness to breastfeed; that physical comfort is desired, but can be waived aside; that physical shelter is important; that peers (in the form of other parents) or their expected presence, form a strong source of support; and that perceived formality, or work-related context, is the strongest deterrent reported to breastfeeding. I conclude that using private sphere attributes in public spaces could make them more accessible to the practice of breastfeeding.

The article explores relationships among urban form, human activities and socio-economic-cultural features in Danwei compound. With Jingmian compound, a typical Danwei compound in Beijing, as a case study, the researcher studies urban form in open spaces from a socio-economic-cultural perspective. In addition, residents' activities are discussed. The research shows that open space form reflects features and transitions of Chinese society from sociological and economic perspectives. This article also proves the validity of thorough micro space form investigation.

Existing urban open space typologies within dense urban fabrics cannot meet society’s open space requirements in developing countries’ metropolitan cities, such as Istanbul. Because of high building densities, it is a challenging task to create new open spaces within urban cores. Developing new tools that work with the existing built environment is crucial to reveal ‘opportunity spaces’ that can act as breathing points within dense urban fabrics. In this research, a new model is developed to evaluate the 3D spatial enclosure of open spaces using basic geometrical properties and geographic information system (GIS) tools. As a case study, Istanbul’s changing spatial organization is analyzed using this model.

Problems encountered in public open space provision in the urban context are investigated through a case study of the Chicago metropolitan region. Correlation and regression analyses are utilized in an attempt to explain local public open space acreage levels in terms of readily available data. Park district directors, chief municipal executives, forest preserve and conservation district directors are surveyed and interviewed in order to gain more qualitative insights. Governmental regulations in general and funding allocation practices for the region are examined for any effect on provision levels. Basic impediments to public open land provision are identified, and several solution strategies are suggested.