Ways and Methods to Make Urban Expressway Play Its Full Role

In recent years, with the rapid increase in traffic demand, a new upsurge in the construction of urban expressway is in the making in China. The problem of how to make urban expressway play its full role and make it helpful to the development of urban traffic needs to be researched urgently. In view of this, the paper systematically analyses existent problems and points out measures for improvement from several aspects: theory and method of urban expressway layout planning and ramp design standard, the connection of urban expressway and conventional road, integrated control of urban road network, technique method of expressway management. On this basis, the author proposes researching focus of urban expressway: analysis of traffic flow characteristics of expressway in China, improvement of expressway layout planning method and design standard, enhancing the technologies of information collection and traffic control, and so on.