关键词: 城市交通, 交通公平, 一般均衡模型, 城市空间均衡, 通勤损失

Abstract:

Based on the general equilibrium model of urban space, this paper studies a transportation equity problem faced by high and low income groups under the condition of urban equilibrium with a multi- agent simulation approach. It constructs a site selection decision model for enterprises and individuals, and discusses the formation mechanism and influencing factors of the transportation equity problem by simulation, so as to provide a new research perspective for transportation equity. It is found that the high-income groups have priority over the low-income group in spatial selection. Low-income groups do not only need to accept lower level of wages, but also suffer higher commuting losses. Moreover, the difference in labor level and commuting speed have heterogeneous effects on the commuting loss of different groups. The widening of the capacity gap between the two groups will worsen the issue of transportation equity. When the efficiency of public transportation system is reduced, such as congestion, the commuting loss of low- income groups will increase significantly, and the transportation inequality is more serious.

Key words: urban traffic, transportation equity, general equilibrium model, urban space equilibrium, commuting loss