建筑环境对道路交通安全的非线性影响:一个多层次的视角
Na Wu1, Hengming Zhang1, Suhe Yang1
1School of Transportation Engineering, Chang'an University, Xi'an, China.
Traffic injury prevention
|September 12, 2025
概括
来自街景图像 (SVIs) 的驾驶员视觉信息是影响道路交通安全的最关键因素. 建筑环境的特征,特别是SVI和POI,显著影响事故风险,复杂的相互作用增加了危险.
科学领域:
- 城市规划和交通安全.
- 地理信息系统 (GIS) 和空间分析
- 机器学习在交通安全中的应用.
背景情况:
- 道路交通安全受到复杂的建筑环境特征的影响.
- 了解非线性和相互作用效应对于有效的安全干预至关重要.
- 现有的研究往往忽视了建筑环境的多层次性质.
研究的目的:
- 研究多尺度建筑环境特征对道路交通安全的非线性和双向相互作用影响.
- 量化不同建筑环境尺度 (道路属性,POI,SVI) 对交通事故的贡献.
- 确定增加或减少事故风险的特定特征和相互作用.
主要方法:
- 利用了来自中国三座大城市的叫车事故数据.
- 应用了渐变增强决策树 (GBDT) 模型进行分析.
- 在道路属性,感兴趣点 (POI) 和街景图像 (SVI) 上描述了建筑环境.
主要成果:
- 街景图像 (SVI) 功能对交通事故贡献最大 (74.08%).
- 感兴趣点 (POI) 的贡献为13.77%,道路特征贡献了12.16%.
- 道,主要道路,住宅道路,POI,护和交通信号被确定为重大危险.
结论:
- 驾驶员视觉信息 (SVI) 对道路安全至关重要.
- SVI特征和道路类别的非线性影响显著影响安全.
- 建筑环境特征之间的相互作用会产生复杂的安全动态,往往会增加风险,但公共汽车站附近的停车场除外.
相关概念视频
01:17Design Example: Alignment of a Road Line Using GIS
337
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...
337
01:29Sight Distance in a Vertical Curve
330
Sight distance on vertical curves is critical in roadway design. It ensures drivers can see far enough ahead to identify and respond to hazards effectively. This directly impacts safety, driver comfort, and the overall efficiency of the transportation network.Vertical curves are classified into crest and sag curves based on their geometry. For crest curves, sight distance is determined by the line of sight between a driver's eye and a small object on the road's surface. Design parameters for...
330
01:41Social Traps
26.3K
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...
26.3K
01:30Introduction to Limits
192
A limit describes the value a function approaches as its input moves closer to a particular point. Even when a function is undefined at a specific value, limits allow us to analyze its behavior near that point. This concept is fundamental in calculus and essential for understanding continuity, derivatives, and integrals.Mathematically, a function f(x) has a limit L at x = a if its values L approach x as x gets arbitrarily close to a. This is written as:This notation expresses that the function...
192
01:22Design Consideration
550
Designing a structure involves a series of considerations, primarily the material's ultimate strength, calculated through tests that measure changes under increased force until the material reaches its breaking point or limit. The ultimate load, where the material breaks, is divided by its original cross-sectional area, resulting in the ultimate normal stress or strength. The ultimate shearing stress is another significant factor taken into account.
The factor of safety is another key...
The factor of safety is another key...
550
01:42Schemas
12.3K
A schema is a mental construct consisting of a cluster or collection of related concepts (Bartlett, 1932). There are many different types of schemata, and they all have one thing in common: schemata are a method of organizing information that allows the brain to work more efficiently. When a schema is activated, the brain makes immediate assumptions about the person or object being observed.
12.3K