暴雨内涝情景下的城市交通韧性评估 -安全工程专业

摘要

随着城市化进程的加速，暴雨内涝对城市交通系统的冲击日益显著，提升交通韧性成为应对极端天气的重要课题本研究以暴雨内涝情景为切入点，旨在构建一套科学的城市交通韧性评估框架，通过综合分析交通网络的抗灾能力和恢复能力，揭示其在灾害条件下的动态演化特征研究采用多源数据融合方法，结合水文模型与交通仿真技术，量化内涝对道路通行能力的影响，并引入复杂网络理论评估交通系统的整体性能结果表明，交通韧性水平与内涝强度呈非线性关系，关键节点和路径的失效会显著降低网络连通性，而分级预警机制和应急资源优化配置可有效提升系统恢复效率本研究创新性地提出了基于功能冗余和动态适应性的韧性评价指标体系，为城市交通规划和应急管理提供了科学依据主要贡献在于将自然灾害与交通系统响应相结合，实现了从静态评估向动态模拟的转变，为增强城市应对暴雨内涝的能力提供了理论支持和技术参考

关键词：城市交通韧性；暴雨内涝；复杂网络理论；动态演化特征；应急资源配置

ABSTRACT

With the acceleration of urbanization, the impact of heavy rain-induced urban flooding on transportation systems has become increasingly significant, making the enhancement of transportation resilience a critical issue in addressing extreme weather events. This study focuses on the scenario of urban flooding to construct a scientific fr amework for evaluating urban transportation resilience. By comprehensively analyzing the disaster-resistance and recovery capabilities of transportation networks, this research reveals their dynamic evolution characteristics under disaster conditions. A multi-source data fusion approach is employed, integrating hydrological models with traffic simulation technologies to quantify the effects of flooding on road capacity. Additionally, complex network theory is introduced to assess the overall performance of the transportation system. The results indicate a nonlinear relationship between transportation resilience levels and flood intensity, where the failure of key nodes and paths significantly reduces network connectivity. Moreover, the implementation of tiered early warning mechanisms and optimized allocation of emergency resources can effectively enhance system recovery efficiency. Innovatively, this study proposes a resilience evaluation index system based on functional redundancy and dynamic adaptability, providing a scientific basis for urban transportation planning and emergency management. Its primary contribution lies in combining natural disasters with transportation system responses, achieving a transition from static assessment to dynamic simulation, and offering theoretical support and technical references for enhancing urban resilience to heavy rain-induced flooding.

Keywords: Urban Traffic Resilience; Heavy Rain Flood; Complex Network Theory; Dynamic Evolution Characteristics; Emergency Resource Allocation

摘要 I

ABSTRACT II

第1章绪论 1

1.1 暴雨内涝与城市交通韧性评估背景 1

1.2 国内外研究现状与不足分析 1

1.3 研究方法与技术路线设计 2

第2章暴雨内涝对城市交通的影响机制 3

2.1 暴雨内涝的形成与分布特征 3

2.2 城市交通系统的脆弱性分析 3

2.3 内涝情景下交通中断的量化评估 4

第3章城市交通韧性的评价体系构建 5