Abstract: Highway intersections are studied in depth,and key influences factors are suggested. The functional intersection area and steady movement area of highway intersection are analyzed by theories and experiments. The method of simulation is adopted to analyze delay, traffic volume, signal period at intersection. The reasonable spacing of highway signal intersections and no signal intersections are put forward.

Key words: intersection, spacing, functional intersection area, steady movement area, traffic simulation

摘要： 以分析影响公路平面交叉口间距的关键因素为切入点,用理论分析和试验观测的方法来分析交叉口功能区和平稳运行区长度,并采用交通仿真手段分析延误、交通量、信号周期、绿信比和饱和度对交叉口间距的影响;最后提出了公路无信号交叉口和信号交叉口合理的最小间距的指标。

关键词: 平面交叉口, 间距, 交叉口功能区, 平稳运行区, 交通仿真