Real-time traffic light preemption optimization

在加拿大，交通拥堵造成了沉重的经济和环境负担，据估计，城市地区每年的拥堵成本在23亿美元到37亿美元之间，其中90%以上对应于交通损失的时间。交通拥堵被广泛认为是世界上大多数大都市地区面临的主要挑战。城市交通由红绿灯协调：当这些红绿灯很好地同步时，它们可以起到缓冲的作用，有效地控制交叉路口的交通流量。在某些情况下，市政府官员在绿灯和红灯的持续时间内使用不同的模式，以便有利于一个方向的交通，更好地适应人行横道，或者帮助紧急救援车辆的调度。最近，由于联网车辆和在线实时信息的出现，交通规划者可以受益于具有自适应信号控制的抢占。一些城市与公共交通提供商合作，允许公交车受益于抢占，以帮助它们遵守时间表，减少出行时间，并鼓励使用公共交通工具，但其实施仍然具有挑战性。这一项目带来了更大的机动性和对时间表的尊重，减少了拥堵和污染，减少了燃料消耗，提高了生产率。这些影响显然与联邦、省和市各级为实现绿色复苏所做的努力相一致，有助于减少我们的能源消耗和温室气体排放。这些潜在的结果将在我们的项目中得到明确的衡量和量化。如上所述，私人舰队尚未使用抢占。这一创新协作将评估红绿灯控制如何减少拥堵、消耗和排放。我们的发现将允许该系统应用于该市的其他地方，我们的知识将立即输出到加拿大其他地方和国外。我们的培训和知识转移计划将确保加拿大被公认为拥有这项新技术的城市交通领域的领导者。

In Canada, traffic congestion imposes heavy economic and environmental burdens, with estimates of the congestion cost in urban areas between $2.3 billion and $3.7 billion per year, where more than 90% corresponds to time lost in traffic. Traffic congestion is widely perceived as the major challenge faced in most metropolitan areas worldwide. City traffic is coordinated by traffic lights: when these are well synchronized, they can act as a buffer to control traffic flow efficiently across intersections. In some contexts, city officials use different patterns for the duration of green-red lights in order to favor the flow in one direction, to better accommodate pedestrian crossings, or to help with the dispatching of emergency vehicles. More recently, thanks to the emergence of connected vehicles and online real-time information, transportation planners can benefit from preemption with adaptive signal control. Some cities work with public transport providers to allow buses to benefit from preemption in order to help them stick to their schedule, reduce travel time, and encourage public transport usage, but their implementation remains challenging.This project leads to increased mobility and respect of the schedules, less congestion and pollution, reduced fuel consumption, and increased productivity. These impacts are clearly aligned with federal, provincial, and municipal level efforts for a green recovery and contribute to decreasing our energy use and greenhouse gas emissions. These potential outcomes will be clearly measured and quantified in our project. As indicated above, preemption is not yet used with private fleets. This innovative collaboration will assess how traffic light control can reduce congestion, consumption, and emission. Our findings will allow the system to be applied elsewhere in the city, and our knowledge will be immediately exportable elsewhere in Canada and abroad. Our training and knowledge transfer plans will ensure that Canada is recognized as a leader in urban mobility with this new technology.