Scientific Development Research

As an important transportation hub, the connection section between urban expressways and expressways undertakes the conversion of traffic flow between cities and surrounding expressways. Due to the existence of traffic bottlenecks in the connection section, problems such as poor traffic smoothness, low traffic efficiency, and frequent accidents occur, affecting traffic safety and the smooth operation of urban traffic. This paper analyzes the current status of traffic organization at the connection section between urban expressways and expressways, and proposes strategies to optimize traffic flow design, signal control, and traffic signs, aiming to improve the traffic capacity and safety of the connection section. Through optimized design, improving traffic efficiency and reducing accidents will effectively enhance the operational level of the entire transportation system.

Urban expressway; Expressway; Connection section; Traffic organization; Optimization