【摘要】 以开通地铁的城市为样本，探讨地铁建设对中国大城市人口增长的影响，结果表明，地铁建设有利于城市人口规模提升。进一步，基于城市内部圈层划分，设计两个城市多中心结构指标，并分别将其作为中介变量进行回归，结果表明，地铁建设会推动城市内部空间结构向多中心结构演进，进而促进城市人口规模的增长。更多还原

【Abstract】 Taking a sample of cities with subways as samples, this paper explores the impact of metro construction on the growth of urban population. The results show that subway construction is beneficial to the increase of urban population scale. Based on the division of inner circle layer of the city, two urban polycentric structure index is designed and respectively used as an intermediary variable for regression. The results show that subway construction will promote the evolution of urban spatial structure to polycentric structure, and then promote the growth of urban population scale.更多还原