A Survey on Urban Freeway Traffic Control
城市高速公路交通控制综述

Urban freeway traffic modeling and control are surveyed in this paper. First, a variety of freeway traffic flow models are addressed,with emphasis on the macroscopic hydrodynamic models. Then, we discuss the major control measures taken in urban freeway traffic and the corresponding research methods. Finally, some comments are made on the current research and some perspectives are given for the future study.