Urban expansion is one of the major causes of many ecological and environmental problems in urban
areas and the surrounding regions. Understanding the process of urban expansion and its driving factors
is crucial for urban growth planning and management to mitigate the adverse impacts of such growth.
Previous studies have primarily been conducted from a static point of view by examining the process of
urban expansion for only one or two time periods. Few studies have investigated the temporal dynamics
of the effects of the driving factors in urban expansion. Using Beijing as a case study, this research aims to
fill this gap. Urban expansion from 1972 to 2010 was detected from multi-temporal remote sensing
images for four time periods. The effects of physical, socioeconomic, and neighborhood factors on urban
expansion and their temporal dynamics were investigated using binary logistic regression. In addition,
the relative importance of the three types of driving factors was examined using variance partitioning.
The results showed that Beijing has undergone rapid and magnificent urban expansion in the past forty
years. Physical, socioeconomic, and neighborhood factors have simultaneously affected this expansion.
Socioeconomic factors were the most important driving force, except during the period of 1972e1984. In
addition, the effects of these driving factors on urban expansion varied with time. The magnitude of the
unique effects of physical factors and neighborhood factors declined while that of socioeconomic factors
increased along with the urbanization process. The findings of this study can help us better understand
the process of urban expansion and thus have important implications for urban planning and
management in Beijing and similar cities.