Abstract
The aim of this study was to explore the keywords related to smart city concepts, and to understand their flow. This research used a keyword network analysis by collecting keywords from papers published on the web from Scopus, which is an international scholarly papers engine. The data were collected from before and after 2016, and since the amount of data has been growing rapidly after global agreements such as the United Nations’ Sustainable Development Goals (SDGs) in 2015, we attempted to focus on adjacent years of publication. In order to understand the flow of research, we conducted a central analysis, which is widely used in quantitative research relating to social network analysis, and performed cluster analysis to identify relationships with related research. The results of the analysis are represented in the form of network maps, and the role of each keyword was clarified based on these network maps. In addition, the overall flow explained the change of flow through discarded and emerging keywords, and the relationships with related fields were explained through cluster analysis. The findings could serve as a basis for policymakers, urban managers, and researchers seeking a comprehensive understanding of the smart city concept in urban planning areas.
Highlights
A smart city may be considered an advanced concept related to the concepts of the information city, digital city, intelligent city, and sustainable city [1,2], and has been widely cited and studied, along with the sustainable city concept, since 2013 [3,4]
Previous research focusing on conceptual and specialized fields was Scuo5st.na1idn. aCubicolitmteypd2a,0r1ai9sn,od1n1r,oexfcFKeOenRytwProeErsEdeRsaRroEcnhVSIhEmWaasrtfoCciutysed on actively applying smart urban planning based1o7 nofb2i5g data oIfnbtrhoeadwehrofileelfdlos,wwoitfhththeeedmeevregleonpcme eanntdodf iisnafpoprmeaartainonceteocfhwnoorlodgs,ieusp(Ftoig2u0r1e59,)s.tudies had been carried out focused on the concept and introduction of a smart city, related to adaptation and mitigation to climate change, and applied to transportation systems based on mobile applications and geographic information, such as that derived from GPS
The smart city has been regarded as an ideal city for solving the challenges that have arisen in various fields, such as the environment, energy, and transportation, within existing cities
Summary
A smart city may be considered an advanced concept related to the concepts of the information city, digital city, intelligent city, and sustainable city [1,2], and has been widely cited and studied, along with the sustainable city concept, since 2013 [3,4]. Many studies have used smart city, smart sustainable city, sustainable smart city, and so on interchangeably. These terms need to be clearer because they have the potential to be confused with specific and related terms, often interactively used by policymakers, planners, and researchers, when considering the common aspects of urban sustainability [3]. In general, the smart city is understood as an ideal model for urban planning and development, Sustainability 2019, 11, 3155; doi:10.3390/su11113155 www.mdpi.com/journal/sustainability
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
