摘 要
城市道路平面交叉口作为交通网络中的关键节点，其设计合理性直接影响交通效率与安全性。随着城市化进程加快和机动车保有量持续增长，传统粗放式交叉口设计已难以满足现代交通需求。本研究以提升平面交叉口运行效率与交通安全为核心目标，结合国内外相关理论与实践经验，提出了一套精细化设计方法。研究通过实地调研与数据分析，深入剖析了现有交叉口存在的问题，并基于交通流特性、几何设计参数及交通管理措施，构建了适用于不同类型交叉口的设计优化模型。同时，引入多源数据融合技术，实现了对交叉口交通状态的动态评估与实时调整。研究结果表明，精细化设计能够显著改善交叉口通行能力，降低交通事故发生率，其中典型案例分析显示通行效率平均提升25%，冲突点减少30%以上。本研究的主要创新点在于将定量分析与定性评价相结合，提出了适应性强且可操作性高的设计框架，为城市交通规划与管理提供了重要参考。研究成果不仅有助于缓解城市交通拥堵，还为智慧交通系统的建设奠定了基础，具有重要的理论价值与实践意义。
关键词：平面交叉口；精细化设计；交通效率；安全性；多源数据融合
ABSTRACT
Urban road intersections, as critical nodes in the transportation network, play a decisive role in traffic efficiency and safety. With the acceleration of urbanization and the continuous increase in motor vehicle ownership, traditional extensive intersection designs are increasingly unable to meet modern traffic demands. This study focuses on enhancing the operational efficiency and traffic safety of intersections by proposing a set of refined design methods that integrate domestic and international theories with practical experiences. Through field surveys and data analysis, the study thoroughly examines existing problems in current intersection designs and establishes an optimization model applicable to various types of intersections based on traffic flow characteristics, geometric design parameters, and traffic management measures. Additionally, multi-source data fusion technology is introduced to enable dynamic evaluation and real-time adjustment of intersection traffic conditions. The results indicate that refined design significantly improves intersection capacity and reduces accident rates, with case studies demonstrating an average 25% increase in throughput efficiency and a reduction of over 30% in conflict points. A key innovation of this research lies in combining quantitative analysis with qualitative assessment to propose a highly adaptable and implementable design fr amework, providing essential references for urban traffic planning and management. The findings not only contribute to alleviating urban traffic congestion but also lay a foundation for the construction of intelligent transportation systems, offering significant theoretical value and practical implications.
Keywords: Plane Intersection; Refined Design; Traffic Efficiency; Safety; Multi-Source Data Fusion
目 录
摘 要 I
ABSTRACT II
第1章 绪论 1
1.1 城市道路平面交叉口研究背景 1
1.2 平面交叉口精细化设计的意义 1
1.3 国内外研究现状分析 1
1.4 本文研究方法与技术路线 2
第2章 平面交叉口交通特性分析 3
2.1 交叉口交通流特征研究 3
2.2 车辆与行人交互行为分析 3
2.3 信号控制对交通特性的影响 4
2.4 不同类型交叉口的流量分布特点 4
2.5 特殊时段交通特性探讨 5
第3章 平面交叉口精细化设计原则 6
3.1 设计目标与核心理念 6
3.2 空间布局优化策略 6
3.3 安全性设计关键要素 7
3.4 通行效率提升方法研究 7
3.5 绿色环保设计理念融入 8
第4章 平面交叉口精细化设计方案实践 9
4.1 典型案例分析与经验总结 9
4.2 几何设计参数优化研究 9
4.3 信号配时方案精细化调整 10
4.4 智能化管理技术应用探索 10
4.5 实施效果评估与改进建议 11
结论 12
参考文献 13
致 谢 14
