中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2019, Vol. 38 ›› Issue (07): 1-6.DOI: 10.3969/j.issn.1674-0696.2019.07.01

• 交通+大数据人工智能 •    下一篇

桥形标视觉特征规律分析及复杂度评价方法研究

杜洪吉1,许亚琛1,2,赵晓华1,李振龙1,黄利华1   

  1. (1. 北京工业大学 城市交通学院,北京 100124; 2. 惠州市交通规划勘察设计院,广东 惠州 516001)
  • 收稿日期:2018-02-02 修回日期:2019-04-22 出版日期:2019-07-02 发布日期:2019-07-02
  • 作者简介:杜洪吉(1990—),男,江苏邳州人,博士,主要从事驾驶行为与交通安全方面的研究。E-mail: duhongji@emails.bjut.edu.cn。通信作者:许亚琛(1993—),女,河北保定人,硕士研究生,主要从事驾驶行为与安全方面的研究。E-mail: xuyachen96@126.com。

Research on Visual Characteristics Law and Complexity Evaluation Method of Diagrammatic Guide Signs

DU Hongji1, XU Yachen1,2, ZHAO Xiaohua1, LI Zhenlong1, HUANG Lihua1   

  1. (1. College of Metropolitan Transportation, Beijing University of Technology, Beijing 100124, P. R. China; 2. Huizhou Traffic Planning and Survey Design Institute, Huizhou 516001, Guangdong, P. R. China)
  • Received:2018-02-02 Revised:2019-04-22 Online:2019-07-02 Published:2019-07-02

摘要: 为了研究桥形标对驾驶人视认特性的影响,以北京快速路4种不同复杂度桥形标(高等2种、中低等各1种)为例,运用视觉追踪技术及模拟驾驶技术进行了动态驾驶试验,分析并描述了驾驶人的动态视认过程;提取眼跳次数、总注视次数、兴趣区内注视次数、总注视时间、平均注视驻留时间及第一注视点时间等6个视觉特性指标,进行了重复测量方差分析;借助因子分析方法对4种桥形标进行视认度综合评价。结果表明:相比于低等复杂度桥形标,驾驶人对于高等复杂度桥形标的注视次数明显增多;过于复杂的桥形标会分散驾驶人注意力,对行车安全造成一定影响;高等复杂度桥形标使得驾驶人的搜索过程增长,难以提取目的信息;桥形标越复杂,其综合视认度越低,对行车安全影响越大,且综合视认度结果与选取的桥形标复杂度一致;构建的桥形标综合视认度的量化评估模型可用于其他桥形标复杂度一般性评估。

关键词: 交通工程, 视觉特性, 因子分析, 复杂度评价法, 桥形标

Abstract: Taking four DGSs (two with high complexity, one with middle complexity and one with low complexity) of Beijing urban expressway with different complexity as examples, a dynamic driving test was carried out by using visual tracking technology and driving simulation technology, aiming to study the influence of DGSs on drivers visual characteristics. Drivers dynamic visual recognition process was analyzed and described. Six visual characteristics were extracted to carry out the repeated measurement variance analysis, including the number of eye hops, the total number of gazes, the number of gazes in the region of interest, the total gaze time, the average gaze residence time and the first gaze point time. The comprehensive evaluation of four DGSs was carried out by the factor analysis method. The results show that compared with low-complexity DGSs, the number of drivers gaze at high-complexity DGSs increases significantly. Over-complicated DGSs will distract drivers attention and have a certain impact on driving safety. High-complexity DGSs make the drivers search process grow and it is difficult to extract the target information. The more complex the DGS is, the lower the visibility of the sign is, and the greater the impact on driving safety is. Meanwhile, the visibility results are consistent with the complexity of the selected DGSs. The proposed quantitative evaluation model of DGS recognition can be used for general evaluation of the complexity of other DGSs.

Key words: traffic and transportation engineering, visual characteristics, factor analysis, method of complexity evaluation, diagrammatic guide signs (DGS)

中图分类号: