自学交通信号和连接自动化车辆的合作控制,以在十字路口优化安全和效率
Gongquan Zhang1, Fengze Li2, Dian Ren3
1School of Traffic and Transportation Engineering, Central South University, Changsha 410075, China; Harvard Medical School, Harvard University, Boston 02138, United States.
Accident; analysis and prevention
|December 20, 2024
概括
本研究引入了深度强化学习 (DRL) 框架,用于协同控制交通信号和连接自动化车辆 (CAV). DRL系统优化了交通信号定时和CAV速度,大大提高了交通安全和效率.
科学领域:
- 智能运输系统 智能运输系统
- 在交通管理中的人工智能.
- 强化学习用于控制系统的强化学习
背景情况:
- 交通信号和互联自动化车辆 (CAV) 的合作控制有可能提高城市环境的安全性和减少拥堵.
- 将CAV集成到智能运输系统中需要先进的控制策略来实现动态适应.
研究的目的:
- 提出基于深度强化学习 (DRL) 的创新合作控制框架,以优化交通信号定时和CAV速度.
- 通过动态控制,提高混合交通环境中的交通安全和效率.
主要方法:
- 一个带有集成信号和速度模块的DRL框架,包含一个交通状态预测模型.
- 一个多目标奖励功能,评估安全性 (交通冲突预测) 和效率 (车辆等待时间).
- 使用双深Q网络 (DDQN) 进行信号控制政策学习和CAV的速度规划模型.
主要成果:
- 拟议的DRL框架在覆盖速度和计算时间方面表现出优于现有的基于DRL的交通信号控制 (DRL-TSC).
- 在各种条件下,与执行式,自适应式和DRL-TSC方法相比,在交通安全和效率方面观察到显著的改善.
- 拟议方法的好处随着CAV透率的提高而大幅增加.
结论:
- 开发的DRL合作控制框架有效优化了交通信号定时和CAV速度,以改善城市交通流动.
- 该框架在各种交叉路口类型,交通需求和时间跨度上显示出强大的性能.
- 这种方法代表了CAV在智能运输系统中集成和管理的重大进步.
相关概念视频
01:10Control Systems
1.0K
Control systems are everywhere in contemporary society, influencing diverse applications from aerospace to automated manufacturing. These systems can be found naturally within biological processes, such as blood sugar regulation and heart rate adjustment in response to stress, as well as in man-made systems like elevators and automated vehicles. A control system is essentially a network of subsystems and processes that collaboratively convert specific inputs into desired outputs.
At the heart...
At the heart...
1.0K
01:18Hierarchy of Motor Control
2.5K
The hierarchy of motor control refers to the different levels of organization and processing involved in controlling movement in the body. These levels range from higher cortical areas involved in planning and decision-making to lower spinal cord reflexes that respond automatically to external stimuli.
2.5K
01:17Open and closed-loop control systems
635
Control systems are foundational elements in automation and engineering. They are broadly categorized into open-loop and closed-loop systems. These classifications hinge on the presence or absence of feedback mechanisms, significantly influencing the system's performance, complexity, and application.
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
An open-loop control system operates without feedback from the output. It consists of two primary elements: the controller and the controlled process. The controller receives an input signal...
635
01:25Control Systems: Applications
573
Electrical engineering plays a pivotal role in our daily lives, with control systems at the heart of many applications, from home appliances to sophisticated space shuttles. Control systems manage and regulate the behavior of devices and processes, ensuring they function safely, correctly, and efficiently.
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
In modern vehicles, control systems manage various functions to enhance performance and safety. The steering wheel and accelerator are primary inputs in a car's control system. The...
573
01:22Controller Configurations
85
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
85
01:26Feedback control systems
283
Feedback control systems are categorized in various ways based on their design, analysis, and signal types.
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
Linear feedback systems are theoretical models that simplify analysis and design. These systems operate under the principle that their output is directly proportional to their input within certain ranges. For instance, an amplifier in a control system behaves linearly as long as the input signal remains within a specific range. However, most physical systems exhibit inherent nonlinearity...
283