Speaker
Description
New energy vehicles play an important role in alleviating climate problems and promoting sustainable transportation, and their charging piles will become an indispensable infrastructure in future cities. Analyzing the overall equity and local accessibility of the spatial distribution of charging piles is conducive to meeting the needs of residents, emphasizing the spatial heterogeneity of local equity across varying temporal and spatial scales, and realizing the rational allocation of resources. The existing research on the infrastructure of such emerging cities is still relatively sparse, and little is known about the different accessibility and spatial heterogeneity of charging piles across varying temporal and spatial scales.
Research on the spatial distribution of infrastructure and the relationship between supply and demand in such emerging cities is still relatively sparse. Therefore, this study takes 2480 residential units and 106 charging piles in Nanjing as the analysis object and uses the web map API open data platform to analyze the spatial distribution of the accessibility of charging piles at different levels. At the same time, we use the KD2SFCA ( kernel density two-step floating catchment area ) method to evaluate the real-time travel duration from each residential unit to the charging pile by calculating the supply-demand ratio and the equity index, and then calculate the overall equity according to different charging pile levels, and then reveal the detailed equity according to the spatial heterogeneity of the difficulty of reaching the charging pile, to determine the real travel time cost and spatial heterogeneity. The results show significant differences in spatial equity between different charging pile levels. Among the various service radii of charging piles, the overall spatial equity of charging piles with a radius of 1000 m is the highest, followed by charging piles with a radius of 2000 m and charging piles with a radius of 3000 m are the lowest. We also find that the spatial distribution of urban charging pile accessibility is heterogeneous. Although the overall equity of hierarchical charging piles with smaller radii is higher, the real-time travel cost of individual units is still expensive. Therefore, urban public facilities planning should pay attention to the spatial equity of distribution and supply and demand matching as an important principle to optimize the layout of charging facilities and promote the efficient allocation of transportation resources and sustainable transportation development.
| Keywords | New Energy Vehicle Charging Piles;Spatial Equity;KD2SFCA;Spatial Heterogeneity Analysis |
|---|---|
| Best Congress Paper Award | Yes |
