Self-Organizing Traffic Signals

自组织交通信号

• 批准号: 1130936
• 负责人: Peter Furth
• 金额: $ 23.17万
• 依托单位: Northeastern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2015-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1130936&HistoricalAwards=false
• 关键词: Self; Organizing; Traffic; Signals

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.

本项目的目标是开发算法和规则，使受驱动的交通信号，没有任何固定的周期长度，形成绿色波与相邻交叉口的信号。将制定公交优先的算法和规则，以处理过饱和条件，提供更有效的多车道间隙，并充分利用滞后左转相位中固有的松弛。算法将用C++编码，并使用交通微观模拟软件VISSIM进行测试。信号状态（红色、绿色）的变化响应车辆检测的致动交通信号控制具有许多优点-它减少了延迟，特别是对于行人，提高了安全性，并且容易适应于给予公共交通优先权。然而，它很少用于城市干道，因为它缺乏与相邻交叉口协调的机制。如果成功，该项目将创造增量改进，可应用于现有的信号控制器，以及一个全新的交通信号控制模式，将提高安全性，效率和成本效益。这些新的控制方法将通过对交通检测的更快响应来减少所有交通用户的延迟。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，因为与标准信号定时计划不同，它不需要每隔几年更新一次。外联活动将利用公众对交通问题的强烈兴趣，在高中和公众会议上进行介绍，并在网上张贴教学视频，说明自组织交通信号控制的原则。