在高速公路上风吹沙子危害风险评估基于GIS-游戏理论组合重量
Liangying Li1, Lele Lv1, Zhizhong Tao1
1School of Civil Engineering, Lanzhou Jiaotong University, Lanzhou, China.
PloS one
|February 8, 2024
概括
一个新的模型使用游戏理论和GIS评估高速公路风吹沙子危险风险. 大多数高速公路段显示低至中等风险,并确定了针对性预防策略的高风险区域.
科学领域:
- 地质科学 地质科学
- 土木工程 土木工程是指土木工程.
- 环境科学 环境科学
背景情况:
- 风吹的沙子对沙漠环境中的高速公路运行构成重大威胁.
- 有效的风险评估对于制定针对风吹沙子风险的预防和减轻策略至关重要.
- 现有的评估方法可能无法充分捕捉导致高速公路沙子危害的因素的复杂相互作用.
研究的目的:
- 为高速公路沿线风吹沙子带来的风险开发一种新的风险评估模型.
- 将危险因素,环境脆弱性和基础设施脆弱性整合到一个全面的模型中.
- 提供基于GIS的工具,用于可视化和分析高速公路沙子危险风险.
主要方法:
- 开发了一个风险评估模型,使用危险因素,环境脆弱性和带有危险的身体脆弱性的七个评估指标.
- 游戏理论的组合权重方法被用于指标权重.
- 地理信息系统 (GIS) 平台被用于风险映射和空间分析.
主要成果:
- 拟议的模型应用于武海 - 马高速公路,主要显示中等,低和非常低的风险水平.
- 高风险和非常高风险路段占公路总长度的33%.
- 高风险区域主要位于移动的沙丘内陆,以及在沙地形中的尖曲线附近.
结论:
- 开发的模型准确地评估了高速公路沿线风吹沙子的危险,与现实数据的验证相关性为85.93%.
- 该模型为制定有效的防治和减少沙子危险的策略提供了可靠的基础.
- 调查结果强调了空间分析在确定需要集中风险管理干预措施的关键高速公路段方面的重要性.
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