吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (2): 408-413.doi: 10.13229/j.cnki.jdxbgxb201702009

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Analysis of vehicle braking performance and drivers' screen gaze characteristics under effect of small amount alcohol

LI Xian-sheng, LI Ming-ming, ZHENG Xue-lian, REN Yuan-yuan   

  1. College of Transportation, Jilin University, Changchun 130022, China
  • Received:2015-12-17 Online:2017-03-20 Published:2017-03-20

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Abstract: Based on the vehicle braking performance and application of Analytic Hierarchy Process (AHP) to screen gaze characteristic index, a vehicle distance calculation method and gaze point heat-map generation method were proposed to analyze the vehicle braking performance and gaze variation under normal state or a small amount of alcohol. The braking distance and the whole braking traveled distance under normal state and small amount of alcohol state were calculated to analyze the influence of small amount of alcohol on the braking performance. The gaze point heat-map and the percentage of fixation counts in the Area of Interesting (AOI) to the total fixation counts were compared between drivers of normal state and under effect of small amount of alcohol. Results show that, under the effect of small amount of alcohol, the braking distance is shortened, the response time is increased, the focus on the AOI is reduced and number of fixations is relatively divergent.

Key words: engineering of communications and transportation system, little alcohol effect, driver, braking distance, fixation characteristics

CLC Number: 

  • U491
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