基于车辆操作的时空特征的高速公路上的紧急救援节点的定位方法
Xinghua Hu1,2, Zhouzuo Wang3, Jiahao Zhao3,4
1School of Traffic &Transportation, Chongqing Jiaotong University, Chongqing, 400074, People's Republic of China. xhhoo@cqjtu.edu.cn.
Scientific reports
|August 21, 2024
概括
这项研究利用时空数据优化了高速公路紧急救援节点的位置. 新模型显著缩短了平均救援时间,并改善了在工作日和假日发生交通事故的资源配置.
科学领域:
- 运输工程 运输工程
- 运营研究 运营研究
- 应急管理 应急管理
背景情况:
- 高速公路网络正在扩张,对高效的紧急救援服务的需求正在增加.
- 现有的紧急救援节点位置需要改进,以适应动态的交通模式和需求波动.
- 原点-目的地 (OD) 数据显示在工作日和主要假日之间有明显的交通分布.
研究的目的:
- 开发一个时空模型来选择最佳的高速公路紧急救援节点位置.
- 根据OD分布,区分永久和临时的紧急救援节点要求.
- 提高交通事故应急资源分配的效率和合理性.
主要方法:
- 建模了高速公路网络,并分析了工作日和假日之间的原点-目的地 (OD) 分布差异.
- 应用重叠和非重叠社区检测算法来提取OD分布特征.
- 开发了一个时空空间紧急救援节点选择模型,考虑到交通量,距离和车辆冲击.
主要成果:
- 在区域案例研究中确定了22个永久和25个临时紧急救援节点的适当位置.
- 与P-center模型相比,平均减少了约27.08% (工作日) 和6.70% (假日) 的救援时间.
- 降低了紧急救援时间变化系数约28.22% (工作日) 和21.41% (假日).
结论:
- 拟议的时空模型有效地满足高速公路紧急救援需求.
- 该模型提高了紧急救援中心节点布局和资源分配的合理性和效率.
- 优化节点放置导致交通事故的响应时间显著加快.
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