|Table of Contents|

Correlation between drivers visual behavior and workload inurban road environments(PDF)

长安大学学报（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

Issue:
2020年5期
Page:
97-104
Research Field:
交通工程
Publishing date:

Info

Title:
Correlation between drivers visual behavior and workload inurban road environments
Author(s):
GUO Yuxi;  YUAN Wei;  CHEN Yunxing
(1. Mental Health Education and Counseling Center, Changan University, Xian 710064, Shaanxi, China;2. Key Laboratory for Automotive Transportation Safety Technology of the Ministry ofTransport, Changan University, Xian 710064, Shaanxi, China)
Keywords:
traffic engineering;  urban road;  drivers visual behavior;  workload;  heart rate;  heart rate variability;  correlation
PACS:
-
DOI:
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Abstract:
To carry out the workload evaluation test of drivers in urban road environments, the correlation between drivers visual behavior and workload was studied. A typical urban road was selected in Xian, including ordinary urban roads and urban expressways, and 25 participants were recruited to carry out a real road driving test. The KF2 physiological instrument and Eyelink Ⅱ eye tracker were used to collect the electrocardiogram (ECG) indicators (heart rate, heart rate variability) and visual behavior data of each driver during the test. Statistical methods were used to analyze the correlation between drivers visual behavior parameters and ECG (heart rate growth rate, low frequency, and root mean square of successive heartbeat differences) indicators. The results show that there is a positive correlation between drivers saccade behavior parameters (saccade amplitude, peak saccade speed, average saccade speed, and saccade duration) and the heart rate growth rate (correlation coefficient r≥0.5), but there is a negative correlation with the heart rate variability (r≤-0.5) in the urban road environment, among them, the correlation between saccade amplitude, peak saccade speed and drivers workload is stronger, while the correlation between average saccade speed, saccade duration and drivers workload is weaker. The saccade behavior parameters in urban road environments can be used to evaluate drivers workload. These findings not only enrich the evaluation indicators of the drivers workload, but also provide a theoretical reference for the monitoring of the drivers condition during driving, and help to improve the driving safety in urban road environments. 2 tabs, 14 figs, 26 refs.

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Last Update: 2020-10-12