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Spatial equity analysis of urban public services for electric vehicle charging-Implications of Chinese cities
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DOI：10.1016/j.scs.2021.103519.png)
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Abstract
En 中文
The widespread adoption of electric vehicles (EVs) is crucial for urban sustainability, which can promote the low carbon transition of urban mobility systems and increase energy independence. However, inadequate access to charging infrastructure has posed significant challenges on penetration to the mass market, which requires an equitable distribution of public charging facilities among residents. Current planning and deployment of public charging facilities only take efficiency into account, with limited attention to the spatial equity in distribution. Hence, this study proposes a spatial statistical approach to evaluate whether electric vehicle charging services (EVCS) are equitably distributed. An innovative accessibility measurement model is first developed for EVCS, considering competition over changing demand and different charging capacities. On this basis, a spatial autocorrelation analysis procedure is further designed to investigate spatial patterns of residential accessibility and detect regional disparities. The proposed methodology is tested with the top ten cities in China by their capacity of EVCS, where most cities exhibit significant inequitable distribution but with different regional characteristics. It is demonstrated that the methodology can improve the accuracy of measurement while remaining easy to implement. Therefore, it can serve as a policy tool for EVCS planning to maximize its capability to facilitate EV uptake.
Keywords:
electric vehicle charging services
equitable distribution
accessibility
spatial autocorrelation analysis
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