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This article draws the city into the limelight of social studies of technology. Considering that cities consist of a wide range of technologies, it is remarkable that cities as an object of research have so far have been relatively neglected in the field of technology studies. This article focuses on the role of obduracy in urban sociotechnical change, an issue that, it is argued, has considerable importance for both students of the cities and the daily practice of town planners and architects, and, at the same time, forms an important theoretical debate in science, technology, and society (STS) studies. The article provides an overview of theoretical conceptions of obduracy in both technology studies and urban studies and proposes a heuristic model for the analysis of this phenomenon. In this way, this article aims to contribute to the establishment of a common interdisciplinary playground for these disciplines.

Although cities are considered to be dynamic places, it may be difficult to make significant adjustments in the design of cities: Once built, cities become obdurate, immobile, and fixed. Drawing on recent research in the field of science, technology, and society studies on the obduracy of technological objects, a case study of large-scale urban redesign of the city center of the Dutch city Utrecht is analyzed: Hoog Catharijne. Using Bijker's concept of technological frame, the problem of obduracy in this redesign process is analyzed.

Novel technologies and scientific advancements offer not only opportunities but risks. Technological systems are vulnerable to human error and technical malfunctioning that have far-reaching consequences: one flipped switch can cause a cascading power failure across a networked electric grid. Yet, once addressed, vulnerability accompanied by coping mechanisms may yield a more flexible and resilient society. This book investigates vulnerability, in both its negative and positive aspects, in technological cultures. The contributors argue that viewing risk in terms of vulnerability offers a novel approach to understanding the risks and benefits of science and technology. Such an approach broadens conventional risk analysis by connecting to issues of justice, solidarity, and livelihood, and enabling comparisons between the global north and south. The book explores case studies that range from agricultural practices in India to neonatal intensive care medicine in Western hospitals; these cases, spanning the issues addressed in the book, illustrate what vulnerability is and does. The book offers conceptual frameworks for empirical description and analysis of vulnerability that elucidate its ambiguity, context dependence, and constructed nature. Finally, the book addresses the implications of these analyses for the governance of vulnerability, proposing a more reflexive way of dealing with vulnerability in technological cultures. Contributors Marjolein van Asselt, Martin Boeckhout, Wiebe Bijker, Tessa Fox, Stephen Healy, Anique Hommels, Sheila Jasanoff, Jozef Keulartz, Jessica Mesman, Ger Palmboom, C. Shambu Prasad, Julia Quartz, Johan M. Sanne, Maartje Schermer, Teesta Setelvad, Esha Shah, Andy Stirling, Imrat Verhoeven, Esther Versluis, Shiv Visvanathan, Gerard de Vries, Ger Wackers, Dick Willems.

The upscaling of innovations from urban experiments is often assumed to be relatively easy, as if they can simply be 'rolled out'. In practice, however, upscaling is usually constrained by a range of factors in the wider context of the innovation, typically a context of interconnected and 'obdurate' urban socio-technical networks and institutions. Innovation studies have used the notion of upscaling from experiments most explicitly in studies of transitions, especially of strategic niche management (SNM) and transition management (TM). However, these studies have focused more on niche internal dynamics and future visions, respectively, and much less on constraints in the present socio-institutional context. This paper offers a conceptual contribution on 'constraints on upscaling', elaborating on how upscaling can be more effective when constraints on upscaling are first identified in retrospective systems analysis, and then anticipated in the design of urban experiments. Our focus is on innovation in urban mobility systems. After a conceptualization of 'constraints on upscaling', based on a review of the literature of transition, social innovation, geography and science & technology studies, we present a retrospective analysis of urban mobility in Maastricht (NL) in which these interrelated constraints can be recognized. Further, we analyze a pilot on electric bus mobility which was relatively successful in anticipating future constraints. Based on this, we offer some guidelines on how to anticipate upscaling in the design of urban experiments with socio-technical innovations.