关键词: 快速路, 常规道路, 交织区, 优化, 信号控制, VISSIM仿真

Abstract: Aiming at the congestion problems caused by the irrational link segments of urban expressways and urban conventional ways, two philosophies, that is,“time for space and”space for time , are proposed. Meanwhile, four kinds of ideas for the traffic flow optimization and nine kinds of improving methods and measures are also proposed. Furtherm ore,setting dynamic or static signal control at the link segment is an effective supplement to the set of optimization programs for link segments of expressways and conventional ways. At last, using the evaluation results of VISSIM simulation, each method and their co bination are applied to case studies to illustrate the feasibility and effect

Key words: expressway, conventional ways, weaving section, optimization, signal control , VISSIM simulation