交通运输系统工程与信息 ›› 2025, Vol. 25 ›› Issue (6): 350-359.DOI: 10.16097/j.cnki.1009-6744.2025.06.032

• 工程应用与案例分析 • 上一篇    下一篇

基于冲突理论的平视显示行人预警系统安全效用建模分析

李雪玮1 ,孙齐1 ,刘筱萌1 ,康学建1 ,赵晓华*2   

  1. 1. 石家庄铁道大学,交通运输学院,石家庄050043;2.北京工业大学,交通工程北京市重点实验室,北京100124
  • 收稿日期:2025-07-09 修回日期:2025-08-14 接受日期:2025-08-21 出版日期:2025-12-25 发布日期:2025-12-24
  • 作者简介:李雪玮(1993—),女,河北邯郸人,讲师,博士。
  • 基金资助:
    河北省自然科学基金 (E2025210092)。

Analysis of Safety Utility of Head-up Display Pedestrian Warning System Based on Conflict Theory

LI Xuewei1, SUN Qi1, LIU Xiaomeng1, KANG Xuejian1, ZHAO Xiaohua*2   

  1. 1. School of Traffic and Transportation, Shijiazhuang Tiedao University, Shijiazhuang 050043, China; 2. Beijing Key Laboratory of Traffic Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2025-07-09 Revised:2025-08-14 Accepted:2025-08-21 Online:2025-12-25 Published:2025-12-24
  • Supported by:
    Natural Science Foundation of Hebei Province, China (E2025210092)。

摘要: 为量化车载平视显示系统在行人冲突事件中的安全效用,首先,基于驾驶模拟实验设计两种天气条件(晴/雾)下的行人冲突事件,获取34位被试使用Baseline、HDD(Head-Down Display)和HUD(Head-Up Display)这3种人机交互系统的驾驶操纵及车辆运行数据;其次,分析人车冲突过程中车辆的速度特征,并基于交通冲突理论提取驾驶人制动反应时间、最小碰撞时间和后侵占时间,刻画冲突前-中-后的时间安全裕度变化规律;最后,对3个时间维度指标分别构建Cox比例风险模型,探究系统条件、天气条件和驾驶人个体属性对安全裕度的作用机制。结果表明,与HDD组和Baseline组相比,HUD组驾驶人在冲突前及冲突中的车辆速度显著降低,制动反应时间更短,最小碰撞时间更长,冲突后车辆恢复速度显著更高,但后侵占时间与其他两组相比无显著差异。进一步分析表明,驾驶人性别及驾驶频率与后侵占时间有关,表现为男性驾驶人和驾驶频率较低的驾驶人后侵占时间较长。研究结果可为HUD预警系统的优化设计提供理论支撑,提升HUD系统在复杂风险驾驶环境中的安全效能。

关键词: 智能交通, 平视显示系统, Cox比例风险模型, 行人预警, 安全裕度, 驾驶模拟

Abstract: This paper aims to quantify the safety utility of in-vehicle head-up display systems in pedestrian conflict events. First, pedestrian conflict events under two weather conditions (sunny/foggy) were designed based on a driving simulator experiment, and driving maneuvers and vehicle operation data were acquired from 34 participants utilizing three human-computer interaction systems: Baseline, HDD (Head-Down Display), and HUD (Head-Up Display). Then, the speed characteristics of vehicles during human-vehicle conflicts were analyzed, and the driver's braking reaction time, minimum time-to-collision and post-encroachment time were extracted based on the traffic conflict theory, in order to characterize the pattern of variation of temporal safety margins before, during, and after the conflict. A Cox proportional hazard model was developed for the three time-dimensional indicators to explore the mechanism of the system conditions, weather conditions and individual driver attributes on safety margins. The results show that, compared to the HDD and Baseline groups, drivers in the HUD group exhibited significantly lower vehicle speeds before and during the conflict, shorter braking reaction times, longer minimum time-to-collision, and significantly higher post conflict recovery speeds. However, there was no significant difference in post-encroachment time compared to the other two groups. Further analysis showed that driver gender and driving frequency were related to post-encroachment time, with male drivers and drivers with lower driving frequency exhibiting longer post-encroachment time. The research results can provide theoretical support for the optimization design of the HUD warning system and enhance the safety performance of the HUD system in complex risk-driving environments.

Key words: intelligent transportation, head-up display (HUD), Cox proportional hazard model, pedestrian warning, safety margin, driving simulation

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