This paper investigates the effects of intercity commuting on travel characteristics and urban performances. A spatial equilibrium model of the two-city system which involves the travel mode choice and workplace selection equilibrium, as well as the housing demand and supply equilibrium, is proposed and well formulated. A two-level iterative procedure is presented, and the properties of the proposed model are analytically and numerically analyzed. The finding shows that, the improvement of intercity commuting always improves the households’ utility level. From the respects of spatial structure and intercity commuters, both two cities become more compact, the number of households residing in the less economically developed city and intercity commuters both increase with the improvement of intercity commuting condition when incomes are exogenous. When agglomeration effects are considered, the city boundaries and the population of developed city and the left boundary of less developed city increase firstly and then decrease, and the right boundary of less developed city keeps decreasing with the improvement of intercity train.

本文研究了城际通勤对出行特征和城市绩效的影响。提出并完善了涉及出行方式选择和工作场所选择均衡以及住房供需均衡的两城系统空间均衡模型。提出了一个两级迭代过程，并对所提出的模型的性质进行了分析和数值分析。研究结果表明，城际通勤的改善总能提高家庭的效用水平。从空间结构和城际通勤者来看，两个城市都变得更加紧凑，在收入外生的情况下，随着城际通勤条件的改善，居住在经济欠发达城市的住户数和城际通勤者都增加了。