| Title | Research Development on Sustainable Urban Infrastructure From 1991 to 2017: A Bibliometric Analysis to Inform Future Innovations |
|---|---|
| ID_Doc | 32328 |
| Authors | Du, HB; Liu, DY; Lu, ZM; Crittenden, J; Mao, GZ; Wang, S; Zou, HY |
| Title | Research Development on Sustainable Urban Infrastructure From 1991 to 2017: A Bibliometric Analysis to Inform Future Innovations |
| Year | 2019 |
| Published | Earths Future, 7, 7 |
| Abstract | 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. |
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