无信号交叉路口的车辆排队形成的调度方法基于混合交通.
Junfeng Jiang1,2, Yikang Rui3,4, Bin Ran1,2
1School of Transportation, Southeast University, Nanjing, 211189, China.
Scientific reports
|July 22, 2025
概括
本研究介绍了一种层次框架和混合车队调度模型 (MPSM),用于管理在没有信号交叉点的混合交通. MPSM优化车辆排队以提高安全性和效率,优于现有方法.
科学领域:
- 智能运输系统 智能运输系统
- 交通工程是交通工程.
- 自动驾驶自动驾驶自动驾驶
背景情况:
- 无信号交叉路口管理在混合交通环境中具有挑战性,包括人驾驶和连接的自动化车辆 (CAV).
- 现有的自动驾驶虚拟排队方法不适合混合交通,可能导致延误.
- 需要一种新的方法来整合CAV和人驾驶车辆,以实现高效的交叉路口通行.
研究的目的:
- 提出一个层次框架来管理混合交通中没有信号的十字路口.
- 开发混合车队调度模型 (MPSM) 以优化车辆通过顺序.
- 在没有信号的十字路口提高交通安全和效率.
主要方法:
- 一个分层的控制框架,具有较低级别的分布式控制和较高级别的协作控制.
- 在混合交通中,与CAV一起形成车辆排队.
- 将调度问题转化为使用混合冲突导向图 (MCDG) 的图形优化.
- 优化跨树深度和宽度,并重新排序节点以尽量减少延迟.
主要成果:
- 与自适应信号控制方法 (Adaptive-SIM),首次到来,首次服务 (FCFS) 和深度首次搜索树 (DFST) 算法相比,拟议的MPSM表现出优越的延迟性能.
- 该框架有效地管理混合交通,在没有信号的十字路口提高安全性和效率.
- 实验评估证实了该模型在不同交通场景中的有效性.
结论:
- 层次框架和MPSM为混合交通环境中的无信号交叉路口管理提供了可行的解决方案.
- MPSM提供了最佳的车辆通过顺序,提高了交通流量,减少了延误.
- 这种方法适用于各种交通条件,为更安全,更有效的交叉路口铺平道路.
相关概念视频
Design Example: Alignment of a Road Line Using GIS
106
The alignment of a road line using Geographic Information Systems (GIS) is a critical process in civil engineering, combining advanced technology with practical decision-making. This methodology begins with the collection of geospatial data, including information on land cover, geomorphology, drainage patterns, slope, and contour details. Such data is typically acquired through satellite imagery and GIS tools, offering a comprehensive understanding of the terrain.Once the data is gathered, it...
106
Social Traps
23.4K
Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
23.4K
Manipulation and Analysis
61
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
61
Survey Safety
164
Surveying near highways, rough terrain, or power lines involves significant risks. Working along highways is particularly dangerous and requires the use of warning signs and flagmen. It is safest to avoid working directly on roads and use offsets whenever possible. When highway work is unavoidable, it must follow all safety guidelines. Surveyors should wear bright clothing, such as orange reflective vests, to ensure visibility to motorists, coworkers, and hunters. In construction zones, wearing...
164
Introduction to Vertical Curves
161
Vertical curves are parabolic transitions that connect different grades on highways and railroads, ensuring a smooth alignment between back and forward tangents. The back tangent represents the initial grade, while the forward tangent defines the subsequent grade. These curves can be symmetrical, with equal tangent lengths, or nonsymmetrical, with varying lengths. The key points defining a vertical curve include the Point of Vertical Intersection (P.V.I.), where the tangents meet; the Point of...
161
Multimachine Stability
230
Multimachine stability analysis is crucial for understanding the dynamics and stability of power systems with multiple synchronous machines. The objective is to solve the swing equations for a network of M machines connected to an N-bus power system.
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
In analyzing the system, the nodal equations represent the relationship between bus voltages, machine voltages, and machine currents. The nodal equation is given by:
230


