Drivers' Visual Characteristics and Mental Load Based on Entropy Rates

doi:10.3969/j.issn.1674-0696.2014.02.26

Journal of Chongqing Jiaotong University(Natural Science) ›› 2014, Vol. 33 ›› Issue (2): 118-121.DOI: 10.3969/j.issn.1674-0696.2014.02.26

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Drivers' Visual Characteristics and Mental Load Based on Entropy Rates

Peng Jinshuan¹，Gao Cuicui²，Guo Yingshi³

1. Key Laboratory of Traffic & Transportation , Chongqing Jiaotong University ,Chongqing 400074 , China; 2. Yantai Automobile Engineering Professional College , Yantai 265500 , Shandong , China; 3. Key Laboratorγof Automotive Transportation Safety Technology , Ministry of Transport , Chang' an University , Xi' an 710064 , Shaanxi , China

Received:2013-01-01 Revised:2013-07-04 Online:2014-04-15 Published:2015-01-22

基于熵率值的驾驶人视觉与心理负荷特性分析

彭金栓¹，高翠翠²，郭应时³

1. 重庆交通大学交通运输工程重点实验室，重庆 400074；2. 烟台汽车工程职业学院，山东烟台 265500； 3. 长安大学汽车运输安全保障技术交通行业重点实验室，陕西西安 710064

作者简介:彭金栓（1982—），男，安徽太和人，讲师，博士，主要从事汽车与交通安全方面的研究。E-mail：pengjinshuan@163.com.
基金资助:
国家自然科学基金项目（51178053）;重庆市科委基础与前沿研究计划项目（cstc2013jcyjA30015）;重庆市教委科学技术研究项目（KJ130425）;重庆交通大学校内科学基金项目（2012KJCⅡ-015）

Abstract

Abstract: In order to analyze the influence of driving experience on drivers' visual characteristics and mental load , appropr: iate drivers were selected in the test , and driving behavior extraction experiments in urban road environment were designed. The interest areas were rationally divided , and the concept of fixation entropy rate was also introduced. The inf1uence of proficiency level and different pass modes at the intersections on drivers' visual characteristics was analyzed , and the impact of driving experience on drivers' mental load was then discussed. Results show that: the experienced drivers' visual search frequency is higher than the unskilled dri vers; during different passing modes at the intersections , visual search frequencies of left tum modes are remarkably higher than those of straight-going and right tum; in similar driving environment, the experienced drivers' mentalload is lower than unskilled counterparts. Research conclusions provide theoretical guidance to drivers' proficiency evaluation and dr:iving suitability test and it is practical and useful.

Key words: traffic engineering, entropy rates, drivers, visual characteristics, mental load

摘要： 为明确驾驶经验对视觉特性与心理负荷的影响机理，选择合适的被试驾驶人，设计了城市道路环境下的驾驶行为提取试验。划分兴趣区域，引入注视熵率值的概念，分析了熟练程度及交叉口不同通行方式对驾驶人视觉特性的影响，并探析了驾驶经验对驾驶人心理负荷的影响特性。研究表明：熟练驾驶人的视觉搜索频率高于非熟练驾驶人；交叉口的不同通过方式中，左转时的搜索频率显著高于右转及直行；相似环境下，熟练驾驶人的心理负荷低于非熟练驾驶人。研究结论对驾驶人熟练程度评价及驾驶适宜性检测等具有重要的理论指导意义及实际应用价值。

关键词: 交通工程, 熵率值, 驾驶人, 视觉特性, 心理负荷

CLC Number:

U491

Peng Jinshuan，Gao Cuicui，Guo Yingshi. Drivers' Visual Characteristics and Mental Load Based on Entropy Rates[J]. Journal of Chongqing Jiaotong University(Natural Science), 2014, 33(2): 118-121.

彭金栓，高翠翠，郭应时. 基于熵率值的驾驶人视觉与心理负荷特性分析[J]. 重庆交通大学学报（自然科学版）, 2014, 33(2): 118-121.

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Drivers' Visual Characteristics and Mental Load Based on Entropy Rates

基于熵率值的驾驶人视觉与心理负荷特性分析

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