相关实验视频

Updated: Jan 15, 2026

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Evaluation of an Exclusive Spur Dike U-Turn Design with Radar-Collected Data and Simulation

Published on: February 1, 2020

区域特定的高速公路道的实时交通冲突风险建模:CrossTabNet方法

Jieling Jin¹, Jipu Li², Shan Tian²

¹Intelligent Transportation System Research Center, Wuhan University of Technology, Wuhan 430063, China; Engineering Research Center of Transportation Information and Safety (ERCTIS), MoE of China, Wuhan 430063, China.

Accident; analysis and prevention

|October 10, 2025

概括

本研究介绍了高速公路道的区域特定交通冲突风险模型,使用深度学习来改善安全预测. 特定区域的模型显著优于全球模型,突显了局部道安全分析的必要性.

科学领域:

运输工程运输工程
交通安全交通安全
机器学习机器学习

背景情况:

传统的碰撞数据对于高速公路道安全分析是有限的.
实时交通冲突风险建模对于主动安全措施至关重要.
现有的道区划框架缺乏精确风险归因的细节性.

研究的目的:

为高速公路道开发一个区域特定的,实时的交通冲突风险建模框架.
通过整合交通冲突分析,精细的区分和可解释的深度学习来加强道安全评估.
通过使用车辆轨迹数据来解决传统碰撞数据的局限性.

主要方法:

利用车辆轨迹数据,根据交通冲突推导出替代安全措施.
通过了精细的五区道分类 (入口前,入口,内部,出口,后出口).
开发了一个CrossTabNet架构,将特征交互层和TabNet编码器结合起来,用于高阶非线性关系建模和可解释性.

主要成果:

与既有方法相比,拟议的特定区域模型显示出优越的预测性能.
特定区域的模型显著超过了全球模型,强调了本地化建模的必要性.
全球敏感性分析确定了上游流量流动的变化,作为所有区域冲突风险的持续积极贡献者.

结论:

局部化建模对于有效的高速公路道安全评估至关重要.
该框架为适应性,针对区域的交通安全干预提供了有价值的见解.
调查结果强调了考虑不同道段内的不同局部动态对于安全管理的重要性.

关键词:

高速公路道的道可以解释的机器学习前身的特征是前身的特征.实时碰撞风险实时碰撞风险道区域是一个道区域.

更多相关视频

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Evaluating the Effect of Roadside Parking on a Dual-Direction Urban Street

Published on: January 20, 2023

Modeling the Functional Network for Spatial Navigation in the Human Brain

Modeling the Functional Network for Spatial Navigation in the Human Brain

Published on: October 13, 2023

相关概念视频

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...

Design Example: Alignment of a Road Line Using GIS

Design Example: Alignment of a Road Line Using GIS

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...

Uniform Depth Channel Flow: Problem Solving

Uniform Depth Channel Flow: Problem Solving

To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...

Turbulent Flow: Problem Solving

Turbulent Flow: Problem Solving

Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...

Manipulation and Analysis

Manipulation and Analysis

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...

Distributed Loads: Problem Solving

Distributed Loads: Problem Solving

Beams are structural elements commonly employed in engineering applications requiring different load-carrying capacities. The first step in analyzing a beam under a distributed load is to simplify the problem by dividing the load into smaller regions, which allows one to consider each region separately and calculate the magnitude of the equivalent resultant load acting on each portion of the beam. The magnitude of the equivalent resultant load for each region can be determined by calculating...