【摘要】 为提高城市过江桥梁连续合流区路段的通行效率，完善相关设计规范和细则，基于统计学规律和交通流理论，分析了驾驶员在连续合流区路段的驾驶特征，以此建立了过江桥梁连续合流区的最小间距模型。以福建省福州市3座过江桥梁的连续合流区为研究对象，采用双无人机航拍视频，获取自然行驶状态下的交通流运行特征与车辆行驶轨迹。从交通安全的角度，对最小间距模型中的关键参数进行研究和标定，计算得到了过江桥梁连续合流区的最小间距建议值。更多还原

【Abstract】 In order to improve the traffic safety and efficiency of the continuous merging area for urban river crossing bridges and to complete the relevant standards and design rules, the driving characteristics of drivers in the continuous merging area are analyzed based on statistical rules and traffic flow theory, and the minimum spacing model of the continuous merging area of urban river crossing bridges is established. The continuous merging area of three representative urban river crossing bridges in Fuzhou City is selected as the research object, the traffic flow operation characteristics and vehicle driving trajectory are obtained through double UAV aerial video. The traffic survey data is further applied to calibrate the key parameters of the model from the safety perspective, and the minimum spacing recommendation value for the continuous merging area of urban river crossing bridges is calculated.更多还原