信号交叉口固定配时控制方案可靠度研究

Control Scheme Reliability Research for Signalized Intersection

为了反映交叉口处的信号控制方案启动时间是否适应交通流变化的情况,定义了固定配时控制方案可靠度的概念,并且就固定配时控制方案可靠度的计算方法进行了探讨,通过实际采集的交通数据和信号配时方案资料,对该可靠度计算方法进行了应用.结果表明,对交叉口控制方案可采用可靠度的概念进行评价,并且使用可靠度确定固定配时方案启动时间,能更好地适应交通流的变化.

To describe whether the start time of signal control timing planning in intersection adapts to changeable traffic flow, the conception of control scheme reliability is defined and the calculation method is al- so discussed. By using collected traffic data and signal timing scheme, this method is applied into the evalua- tion of traffic control system. The result shows that defining the conception of control scheme reliability and using the method to confirm the fixed timing scheme can adapt to changeable traffic flow better.