城市轨道交通环线投资决策模型及社会福利分析
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F570

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国家杰出青年科学基金资助项目(71525003) ; 国家自然科学基金重大资助项目(71890974; 71890970); 国家自然科学基金中 欧合作资助项目(71961137001)


Investment in ring rail transit lines and its social welfare
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    摘要:

    在分析环形放射状城市系统均衡的基础上,提出了城市轨道交通环线投资决策模型.模型考虑了城市系统中不同参与者之间的相互作用:政府通过优化轨道交通环线位置、环线数量、轨道交通线路车辆发车频率来实现社会福利最大化;城市居民通过选择住宅位置和住房面积使其效用最大;房地产开发商通过决策住房供应量来最大化净利润;通勤者选择通勤费用最小的路线出行.研究结果表明投资环线后整个城市面积扩大,城市居住密度、房价和开发商住房投资强度在环线处出现“山峰”,而家庭住房面积在环线处出现“山谷”;环线投资建设使得城市居民和整个城市系统均受益;平均居住密度、平均房价、平均土地价值和平均投资强度下降,但平均住房面积增加.此外,轨道交通线路造价对环线投资决策带来重大影响.

    Abstract:

    Based on an analysis of urban system equilibrium of a ring-radial city,a decision model for investing in urban ring rail transit lines is proposed. In the proposed model,the interactions among different parties in the urban system are considered. The local authorities determine the optimal location and number of the ring rail lines,and the optimal frequency of vehicles on the rail transit lines to maximize the social welfare of the system. The households choose residential locations and housing space to maximize their own utility. The property developers seek to maximize their own net profit by determining the housing supply. The commuters choose the routes with minimum travel cost for commute. The findings show that the investment in ring rail lines will expand the total area of the city and cause the“peaks”of residential density,housing price,and investment intensity to appear on the ring rail lines,but the“valleys”of household housing space to appear on the ring rail lines. The investment in the ring rail lines can benefit both the urban residents and the urban system. The average residential density,average housing price,average land value,and average investment intensity all decrease,whereas the average housing area increases. In addition,the construction cost of the rail transit lines has significant effects on the investment decisions of the ring rail transit lines.

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程立,李志纯.城市轨道交通环线投资决策模型及社会福利分析[J].管理科学学报,2020,23(6):59~72

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  • 在线发布日期: 2021-10-25
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