g at home.РUrban transportation is a major realm of government po1icy throughout the world. The transport policies also will affect the urban form deeply, especially during suburbanization. In Beijing, many economic apartments have been constructed in suburb for those low e citizens. There are two major problems before the policy makers. First, from the past experience, a large number of the permanent residents in the munities are medium or even high e people. And many of the house owners still reside in central city and go to their suburban house only for holiday. In addition, the residents plain at the transport congestion and relative high toll of highway, particularly at peak time. The results of simulation in this study explain these phenomena and try to give some policy implications.