Influence of transportation between central city and satellite city on urban spatial expansion

The quantification research on the function mechanism and contribute degree is the key problem between central city and satellite city to urban spatial expansion.This paper developed the traditional gravitation model,established the influence model by using the developed gravitation model and the technique of computer simulation,analyzed the function of transportation between central city and satellite city to urban spatial expansion.It is improved by an example that the development of transportation between central city and satellite city make the allocation proportion of urban expansion units increase in the satellite city,but make it decrease in the built-up area and the urban fringe.The conclusion is obtained that the city space can expand to satellite city by developing transportation between central city and satellite city.3 tabs,3 figs,9 refs.