Abstract
Disorderly urban sprawl in developed countries was aggravated by the progress of motorization. City planners in developing countries can avoid similar mistakes to be repeated. Since personal income level and car ownership seems to have a positive relationship, the objective of this study is to clarify the influence of rising income level on traffic behavior in developing countries. It was found that the car usage rate will rise with increasing income levels for cities with income levels above a certain value. One of the reasons is the relocation of high income people to the peripheral area of a city and this has been proven. Solutions to this imminent problem include development of a pleasant living environment in the city center so as to attract more people from high income level groups to reside in the city center area, and the compound use of city land in order to reduce trip length.
