Integrative Architecture of ATMS for Urban Elevated Expressway Network in Shanghai

Abstract

With the development of economy, Shanghai, the biggest city of China, suffers from severe traffic congestion. The elevated expressways in downtown Shanghai are highly clogged during peak hours as well as off-peak hours. To improve traffic situation of elevated expressway without adding more infrastructure and creating negative impacts on environment, an advanced traffic management system (ATMS) for elevated expressway has been established. Considering the complexity of urban elevated expressway network, an integrative architecture is proposed in this paper for system development of ATMS. This integrative architecture includes traffic management strategy, physical framework and main functions of ATMS. The field equipment part of this ATMS consists of real-time traffic data collection subsystem, traffic guidance and control subsystem, and real-time surveillance subsystem. This paper gives the detailed introduction of the features of these subsystems. In addition, it gives the evaluation results for ATMS demonstration project and gives recommendations for further research.