Real-time traffic light preemption optimization

在加拿大，交通拥堵给经济和环境带来了沉重的负担，据估计，城市地区每年的交通拥堵成本在23亿至37亿美元之间，其中90%以上的时间浪费在交通上。交通拥堵被广泛认为是世界上大多数大都市面临的主要挑战。城市交通由红绿灯协调：当这些红绿灯很好地同步时，它们可以作为缓冲，有效地控制十字路口的交通流量。在某些情况下，城市官员对红灯的持续时间使用不同的模式，以有利于一个方向的车流，更好地容纳行人过街，或帮助调度紧急车辆。最近，由于联网车辆和在线实时信息的出现，交通规划者可以从自适应信号控制的抢占中受益。一些城市与公共交通供应商合作，允许公共汽车从优先权中受益，以帮助他们坚持自己的时间表，减少旅行时间，并鼓励公共交通的使用，但他们的实施仍然具有挑战性。该项目增加了机动性和对时间表的尊重，减少了拥堵和污染，降低了燃料消耗，提高了生产率。这些影响显然与联邦、省和市级为绿色复苏所做的努力相一致，并有助于减少我们的能源使用和温室气体排放。这些潜在的结果将在我们的项目中被清楚地测量和量化。如上所述，私人车队尚未使用先发制人。这一创新合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在城市的其他地方应用，我们的知识将立即输出到加拿大和国外的其他地方。我们的培训和知识转移计划将确保加拿大在这项新技术的城市交通方面被公认为领导者。

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.