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This data article presents a tripartite dataset that formed the empirical basis for a comprehensive bibliometric analysis of the use of city labels denoting sustainable urbanism in the scientific literature (Schraven, 2021). The tripartite dataset was generated using the abstract and citation database Scopus (Elsevier). Dataset A lists 148 city labels denoting different approaches to urban planning and development. It was used to select 35 city labels that specifically address sustainable urbanism ('sustainable city', 'smart city', 'compact city' etc.). Dataset B references 11,337 journal and review articles spanning the period 1990-2019. All retrieved articles contain at least one of the 35 city labels in the title, abstract, and author keywords. This database was used to calculate the frequency of the selected city labels across time, and to analyze the co-occurrences of city labels. It was further used to calculate the future trajectory of scientific outputs using the Logistic Growth Model (LGM). Dataset C entails 22,820 author keywords extracted from across the 11,337 articles. This was used to analyze the co-occurrences of keywords with city labels. The data article describes the methods of data collection and curation, the analysis performed, and the potential for reusing the data for further research. The comprehensiveness of the bibliometric corpus - spanning three decades and 35 city labels - lends itself to further investigation of how sustainable urban development has evolved as a topic in the scientific literature since the 1990s. Furthermore, the robust methodology developed could be adapted to other scientific repositories and, indeed, other research problems and questions. (c) 2022 The Author(s). Published by Elsevier Inc.

Considering its relatively low circularity rate (11.8% in 2019), the EU set several waste management targets as part of its roadmap to a circular economy yet the decision about which transition pathway to follow is not trivial. The maximization of circularity in human made systems is intended to function as a catalyst for this transition albeit at the risk of establishing fragile techno-economic systems. To provide insights for a balanced transition to a circular economy its link with the ecological concepts of “resilience” and “robustness” is illuminated by assessing the theoretical robustness of the material and energy flow networks of the EU27 countries between 2010-2018 using Eurostat data. Results show that despite the high degrees of order (efficiencies) which all European countries developed over the years studied, none of them achieved near-maximum robustness. The identified relationships between the average circularity rate and the average energy efficiency with the theoretical robustness of these material and energy flow networks (for the years studied), respectively, suggest that ascendency analysis is a credible tool for supporting policy making. Both on a national and on a local level for developing circular and robust urban waste management systems given data availability. The contribution to the underlying theory of ascendency analysis is the introduction of the concepts of “technological boundaries” and “windows of efficiency” of these human-made networks which are juxtaposed with the “window of vitality” that is often used to describe healthy natural ecosystems. Finally, the limitations of ascendency analysis and directions for future research are presented.

SDG 11 – ‘making cities and human settlements inclusive, safe, resilient and sustainable’ – draws attention to the criticality of urban governance in the quest for sustainable development. Reflecting this, diverse city labels, such as ‘sustainable city’ and ‘smart city’, have been mobilized by urban actors and scholars to consider cities’ responses to various challenges of urban transformation. Consequently, this study interrogates: (1) the growing use of city labels in the scientific literature over three decades; (2) the conceptual dimensions of individual city labels and their mutual interdependencies; and (3) likely future trajectories. This is accomplished through a comprehensive bibliometric analysis of 35 city labels: we examine their (co-)occurrences during 1990–2019 based on 11337 articles harvested in Scopus; analyse their conceptual associations drawing on a corpus of 22820 author keywords; and make a future forecast based on logistic growth modelling (the underlying datasets are available through open access). The findings significantly take forward recent bibliometric research by demonstrating: the rapid growth in scientific outputs; the diversification of city labels beyond ‘smart’ and ‘sustainable’; and the evolution of an intricate conceptual field made up of different constellations of city labels. The findings have implications for urban policy and practice: regarding ongoing concerns about how to achieve synergies, rather than trade-offs, between SDGs, the conceptual field points to possible ways for relating SDG 11 to other dimensions of sustainable development. More broadly, the clarification of individual city labels’ conceptual underpinnings should help policymakers and practitioners make considered choices when mobilizing city labels in support of urban transformation efforts.

Many countries adhere to the Organisation for Economic Co-operation and Development creed that innovation is good for the economy. Experiments are often used to intentionally create space for innovation. Decisions allowing experiments result in temporary legal enclaves for a few, excluding many others. Therefore, they come with risks. The aim of this article is to provide a set of guidelines that help improve the legal resilience of experimentation policies, so they are better able to withstand legal attacks when they occur. To do so, we first arranged the existing diversity of legal experiments in a theoretical model. Special attention was paid to two archetypes of legal experiments: statutory experiments and regulatory sandboxes. Second, we analyzed the impact of both types of experiments on four core legal principles: legality, certainty, equality, and public accountability. From this assessment, we eventually formulated a set of guidelines to secure or improve legal resilience.

In a globalising world, cities find themselves competing for visitors, residents, investors, and companies. They use place branding strategies to become more visible. However, conceptual and analytical confusion exists on the subjects of place image and brand identity, and current studies are limited to single cities, neglecting inter-city relationships at the regional level. In this paper, we examine how place image and brand identity of cities in polycentric regions can be compared with each other. Inspired by Zenker and Beckmann’s network analysis approach for studying place branding (J Place Manag Dev 6(1): 6–17, 2013), a method is introduced to compare image and identity networks for polycentric regions. We use this to complement traditional steps of concept mapping (i.e. elicitation, mapping, and aggregation), and apply it to analyse the illustrative case of four cities in the MRDH region within the Netherlands. Results of the comparative analysis between the image network and the identity network provide both visual and quantitative insights revealing structural differences. The network analysis research approach can be useful to both policy-makers and researchers in analysing city image and brand identity, and to develop place branding strategies accordingly, even at the regional level.

—Hangzhou subway collapse is the most serious subway construction disaster to date in China. In this article, the management and regulatory questions the collapse raised are focused and a case study of Hangzhou subway collapse is given. By regarding the contractual arrangement as an outcome of a power game of principal-agent, the social causes and the perverse incentives to strategic behaviors of the key players are investigated to explain the particular project outcomes. In the end, some policy suggestions are given for improving the safety performance of subway construction.