了解加纳道路使用者与道路基础设施之间的关系
Brianna P Lawton1, Shauna L Hallmark1, Guillermo Basulto-Elias1
1Iowa State University, Ames, IA, United States.
Accident; analysis and prevention
|February 3, 2024
概括
在加纳,驾驶员在没有信号的交叉路口的行为显著影响了道路安全. 转向方向,车辆类型和交叉口设计等因素影响停车行为,对于保护弱势道路使用者至关重要.
科学领域:
- 道路安全工程 道路安全工程
- 交通行为分析 交通行为分析
- 交通运输中的人类因素
背景情况:
- 交通事故对非洲的死亡率和发病率有很大影响,加纳的死亡率每年都在增加.
- 越来越多的车辆所有权和人口加剧了加纳的道路安全挑战.
- 驾驶员在没有标志的十字路口的行为至关重要,因为如果不能让步,就会危及脆弱的道路使用者.
研究的目的:
- 了解加纳阿尚蒂地区未有信号的农村十字路口的驾驶员行为.
- 建立特定交叉点特征和驾驶员行为之间的关系.
- 为低收入和中等收入国家制定有效的道路安全战略提供政策信息.
主要方法:
- 在十个没有信号的农村十字路口对驾驶员行为的视频分析.
- 对3420辆车进行观察和数据收集.
- 后勤回归建模以分析停止行为作为安全替代品.
主要成果:
- 与左转或右转相比,驾驶员在直行时更有可能停下来.
- 单台卡车和"tro-tros"表现出更高的停车可能性.
- 道化,十字路口照明和速度的存在增加了驾驶员的停车行为.
- 有四种方法的交叉路口比有三种方法的交叉路口有更多的停车.
结论:
- 交叉路口的特性显著影响驾驶员的停车行为,这是一个关键的安全指标.
- 调查结果为安全专业人员提供了有价值的数据,帮助他们制定有针对性的干预措施.
- 结果可以指导政策和资源分配,以改善加纳等LMIC的交叉口安全.
相关概念视频
Design Example: Alignment of a Road Line Using GIS
49
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...
49
Sight Distance in a Vertical Curve
47
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...
47
Elevation of Intermediate Points on Vertical Curves
29
Vertical curves are essential in roadway design because they provide smooth transitions between varying roadway grades. Designing vertical curves involves calculating intermediate elevations and identifying the curve's highest or lowest point, which is essential for optimal roadway performance.Intermediate elevations on a vertical curve are determined using the tangent offset method. This method considers the initial elevation at the start of the curve, the grades, and the curve's geometry. The...
29
Social Traps
22.3K
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...
22.3K
Introduction to Vertical Curves
35
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...
35
Design Example: Joints in Concrete Pavements
183
Concrete pavement joints are essential for maintaining the structural integrity and longevity of pavement by controlling where and how the pavement cracks. These joints can be categorized based on their functions, such as contraction or control joints, construction joints, isolation joints, and expansion joints.
Contraction joints are typically formed by sawing a groove into the concrete shortly after it has hardened. This creates a weakened vertical plane, deliberately encouraging cracking at...
Contraction joints are typically formed by sawing a groove into the concrete shortly after it has hardened. This creates a weakened vertical plane, deliberately encouraging cracking at...
183


