Systems Analysis of Functional Requirements for Adaptive Signal Control

目前，高速公路和街道交叉口的交通控制是通过定时信号装置进行的。这种在十字路口控制交通的方法是低效的，因为无论有没有交通，绿灯和红灯目前都是亮着的。本项目将研究以交通驱动控制取代预计时装置的可行性。通过这种方法，特定高速公路或街道上的交通将在需要时启动控制。该技术将提供交通信号操作的实时优化。这样做的好处是提高了十字路口的交通效率，同时减少了空气污染。

Traffic control at intersections of highways and streets is currently performed by pre-timed signal devices. This method of controlling traffic at an intersection is inefficient because the green and red lights stay on for the present time whether there is traffic or not. This project will investigate the feasibility of replacing the pre-timed devices with traffic actuated controls. By this method, the traffic in a particular highway or street will actuate the controls when needed. The technique will provide real-time optimization of the traffic signal operations. The benefits to be derived are increased efficiency of traffic flow at intersections with an accompanying decrease in air pollution.