Self-Organizing Traffic Signals

该项目的目标是开发算法和规则，使驱动的交通信号不受任何固定周期长度的限制，通过与邻近十字路口的信号通信形成绿波。算法和规则将用于交通优先级，处理过饱和条件，提供更有效的多车道间隙，并充分利用滞后的左转相位固有的松弛。算法将用c++编写，并使用交通微仿真软件VISSIM进行测试。驱动式交通信号控制，其中信号状态（红、绿）的变化响应车辆检测，有许多优点-它减少延误，特别是对行人，提高安全性，并很容易适应优先考虑公共交通。然而，由于缺乏与邻近交叉口协调的机制，它很少在城市主干道上使用。如果成功，该项目将逐步改进现有的信号控制器，并为交通信号控制提供一个全新的范例，从而提高安全性、效率和成本效益。这些新的控制方法将通过对流量检测的更快响应来减少所有流量用户的延迟。行人和公共交通将受益最大，从而促进可持续的交通方式。自组织逻辑将降低维护交通信号的成本，因为不像标准的信号配时计划，它不需要每隔几年更新一次。外展活动将利用公众对交通的强烈兴趣，在高中和公共会议上进行演讲，并在网上发布教学视频，说明自组织交通信号控制的原理。

The objective of this project is to develop algorithms and rules that will allow actuated traffic signals, free of any fixed cycle length, to form green waves by communicating with signals at neighboring intersections. Algorithms and rules will be developed for transit priority, to deal with oversaturated conditions, to provide more efficient multilane gap-out, and to make best use of the slack inherent in lagging left turn phasing. Algorithms will be coded in C++ and tested using the traffic microsimulation software VISSIM. Actuated traffic signal control, in which changes in signal state (red, green) respond to vehicle detections, has many advantages - it reduces delay, especially for pedestrians, improves safety, and is readily adaptable to giving priority to public transportation. However, it is sparingly used on urban arterials because it lacks mechanisms for coordinating with neighboring intersections. If successful, this project will create incremental improvements that can be applied in existing signal controllers as well as a whole new paradigm for traffic signal control that will improve safety, efficiency, and cost-effectiveness. These new control methods will reduce delay for all traffic users by being more responsive to traffic detection. Pedestrians and public transportation will benefit the most, thus promoting sustainable modes of transportation. Self-organizing logic will reduce the cost of maintaining traffic signals because unlike standard signal timing plans, it does not need to be updated every few years. Outreach activities will take advantage of the strong public interest in traffic through presentations at high schools and public meetings, and through instructional videos posted on the web illustrating the principles of self-organizing traffic signal control.