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Research Development on Sustainable Urban Infrastructure From 1991 to 2017: A Bibliometric Analysis to Inform Future Innovations

机译：1991年至2017年可持续城市基础设施的研究发展：一项关于告知未来创新的生物计量分析

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Studies of sustainable urban infrastructure are expanding since the United Nations proposed the concept of sustainability in 1982. The need for more sustainable urban infrastructures led to many research efforts on innovative technologies and development strategies. We analyzed research progress on sustainable urban infrastructure from 1991 to 2017 using bibliometric, keyword co‐occurrence and document cocitation network analysis. An increasing publication number suggests a rapid development of the sustainable urban infrastructure research area, but the development is still in an emerging stage. With respect to the analysis of research themes, we analyzed keyword co‐occurrence networks in the three stages of 1991‐1999, 2000‐2008, and 2009‐2017. We observed substantial expansions and intensive interconnections of research theme clusters on sustainable urban infrastructure. The themes from 2009 to 2017 include “critical infrastructure,” “urban planning and design,” “development need,” “technology innovation,” and “cyber‐physical system.” The United States produced 28.93% of the publications and played a core role in the international collaboration network. We further compared national interests among top productive countries, which highlights different priorities of investing more sustainable urban infrastructures. Finally, we presented an in‐depth analysis of four emerging technology innovations, namely, renewable energy, smart grid, green infrastructure, and cloud computing regarding research directions and challenges. Our results not only provide a valuable reference for researchers who are interested in sustainable urban infrastructures but also put forward the emphasis and orientations of future studies. Plain Language Summary More than a half of world population are currently living in urban areas for decent work and high‐quality services. How we develop cities and infrastructures affects resource needs, quality of life, and the impact of natural environment. Considering the increasing pressure from resource depletion, ecosystem degradation, and climate change, it is critical and urgent to foresee what future cities and infrastructures should be and the gaps we should overcome. Our study provided an overview for a broad audience to recognize the current research progress of sustainable urban infrastructure. Our study shows that this topic is still in an emerging stage with a steady growth of publications. The research themes have expanded dramatically to cover critical infrastructure, development need, technological innovation, urban planning design, and cyber‐physical system. United States is currently leading this research area, but countries have their own interests in sustainable urban infrastructure depending on economic development. In the end, we provided an in‐depth analysis about renewable energy, smart grid, green infrastructures, and cloud computing in terms of research themes and challenges. The testing and validation of these technologies will be required that can fulfill the complex needs of urban citizens in a sustainable and reliable mode.
机译：自联合国于1982年提出了可持续发展的概念的需要导致了对创新技术和发展战略的许多研究工作更加可持续的城市基础设施建设可持续发展城市基础设施的研究正在扩大。我们采用文献计量学，关键字共现和文档cocitation网络分析分析了1991年可持续发展城市基础设施研究进展到2017年。越来越出版号表明可持续的城市基础设施研究领域的快速发展，但发展还处于一个新兴阶段。对于研究主题的分析，我们分析了1991 - 1999年的2000-2008，2009-2017和三个阶段关键字共生网络。我们观察到显着的扩张和可持续的城市基础设施研究课题集群密集的互连。 2009至17年的主题包括“关键基础设施”，“城市规划与设计”，“发展的需要”，“技术创新”和“网络物理系统”。美国生产的出版物的28.93％，而国际合作网络中发挥核心作用。我们进一步比较顶级的生产国之间的国家利益，其中突出的投资更可持续的城市基础设施的不同的优先级。最后，我们提出的四大新兴技术的创新，即，可再生能源，智能电网，绿色基础设施和云进行了深入的分析计算有关的研究方向和挑战。我们的研究结果不仅为谁感兴趣的可持续城市基础设施也提出了重点和未来的研究方向的研究提供有价值的参考。平原语言总结超过世界人口的半数目前住在体面的工作和优质的服务市区。我们如何发展城市和基础设施的影响资源需求，提高生活质量，环境和自然环境的影响。考虑到从资源枯竭，生态系统退化和气候变化压力越来越大，这是关键和迫切预见什么样的未来城市和基础设施应与差距，我们应该克服。我们的研究为广大观众认识到可持续的城市基础设施的当前研究进展进行了概述。我们的研究表明，这个话题仍然是与出版物稳定增长的新兴阶段。该研究课题已大幅扩大到重要的基础设施，发展的需要，科技创新，城市规划设计，和网络物理系统。美国目前正在领导这一研究领域，但国家根据经济发展在可持续城市基础设施自身的利益。最后，我们提供了有关可再生能源，智能电网，绿色基础设施和云中的研究课题和挑战方面的计算进行深入分析。这些技术的测试和验证将需要能够实现可持续和可靠的方式城市居民的复杂需求。

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