交通运输系统工程与信息 ›› 2023, Vol. 23 ›› Issue (3): 133-144.DOI: 10.16097/j.cnki.1009-6744.2023.03.015

• 智能交通系统与信息技术 • 上一篇    下一篇

弯道路侧标志梯度提示策略研究

付锐a,b,许清津a,葛振振*a,b,陈桃a,吴付威a,b,袁伟a,b   

  1. 长安大学,a.汽车学院;b.汽车运输安全保障技术交通运输行业重点实验室,西安710064
  • 收稿日期:2023-04-05 修回日期:2023-04-20 接受日期:2023-04-23 出版日期:2023-06-25 发布日期:2023-06-23
  • 作者简介:付锐(1965-),女,辽宁本溪人,教授,博士
  • 基金资助:
    国家重点研发计划项目(2019YFB1600500)

Gradient Prompting Strategies of Roadside Signs on Curve Segments

FU Ruia,b, XU Qing-jina, GE Zhen-zhen*a,b, CHEN Taoa, WU Fu-weia,b, YUAN Weia,b   

  1. a. School of Automobile; b. Key Laboratory of Automobile Transportation Safety Technology, Ministry of Transport, Chang'an University, Xi'an 710064, China
  • Received:2023-04-05 Revised:2023-04-20 Accepted:2023-04-23 Online:2023-06-25 Published:2023-06-23
  • Supported by:
    National Key Research and Development Program of China(2019YFB1600500)

摘要: 弯道易造成车辆速度控制不当而成为事故多发路段。为改善弯道安全,本文针对弯道路侧警示标志的布设展开研究,制定弯道路侧安全警示标志梯度提示策略,依托高保真模拟驾驶实验平台,建立山区弯道虚拟场景,选取急弯标志、限速标志(Speed Limit Sign,SLS)及可变信息板(Variable Message Sign,VMS)作为警示标志,在弯道对传统提示策略(急弯标志)、二级梯度提示策略(急弯标志和SLS)和三级梯度提示策略(急弯标志、SLS及VMS)开展实验,获取33名被试驾驶人的车辆运动、眼动数据和主观问卷。选择平均速度、纵向加速度、速度遵从率、标志单次注视时长、标志注视提前距离、反应时间以及主观评价等参数作为评价指标,利用单因素方差分析方法和事后测试,对比不同提示策略对驾驶人的作用效果。研究结果表明:相比传统策略,梯度提示策略能有效提高驾驶人注意力,减小对警示标志的视认距离和反应时间,帮助驾驶人在进入弯道前提前完成减速,并在弯道稳定保持低速行驶。本文研究可为弯道路侧安全警示标志连续布设提供依据。

关键词: 交通工程, 梯度提示策略驾驶模拟器, 弯道安全, 驾驶行为, 单因素方差分析

Abstract: Curve segments on roadway are observed with higher crash density than tangent sections due to improper vehicle speed control to navigate through the curve segment. To improve the safety, this paper focuses on the setting of roadside warning signs on curve segments and develops a gradient prompting strategy for these signs. A virtual scene of mountainous curves was established through a high-fidelity driving simulator platform. Three warning signs, including a sharp curve sign, a speed limit sign (SLS), and a variable message sign (Variable message sign, VMS), are determined as the major warning signs. Experiments are conducted on a traditional prompting strategy (sharp curve sign), a second-level gradient prompting strategy (sharp curve sign and SLS), and a third-level gradient prompting strategy (sharp curve sign, SLS, and VMS). Vehicle motion, eye-tracking data, and subjective questionnaires were collected from 33 participants. Parameters such as average speed, longitudinal acceleration, speed compliance rate, single gaze duration, gaze advance distance, reaction time, and subjective evaluation were used as evaluation indicators. One-way analysis of variance (ANOVA) and post-hoc tests were used to compare the effects of different prompting strategies on driver's attention and speed control. The results show that compared with traditional strategy, the gradient prompting strategies can effectively improve driver attention, reduce visual recognition distance and reaction time for warning signs, and help drivers to slow down before entering the curve and maintain a low speed while driving on the curve. This study provides a basis for the continuous setting of roadside safety warning signs on curve segments.

Key words: traffic engineering, gradient prompting strategy, driving simulator, curve safety, driving behavior, one-way ANOVA

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