Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/61249
Title: A simulation study of the effects of alcohol on driving performance in a Chinese population
Authors: Li, YC
Sze, NN 
Wong, SC
Yan, W
Tsui, KL
So, FL
Keywords: Chinese population
Drink driving
Driving performance
Driving simulator
Traffic safety
Issue Date: 2016
Publisher: Pergamon Press
Source: Accident analysis and prevention, 2016, v. 95, p. 334-342 How to cite?
Journal: Accident analysis and prevention 
Abstract: Driving under the influence of alcohol (DUIA) is a significant factor contributing to road traffic crashes, injuries, and fatalities. Although the effects of alcohol on driving performance are widely acknowledged, studies of the effects of alcohol impairment on driving performance and particularly on the control system of Chinese adults are rare. This study attempts to evaluate the effects of alcohol on the driving performance of Chinese adults using a driving simulator.
Method: A double-blind experimental study was conducted to evaluate the effects of alcohol impairment on the driving performance of 52 Chinese participants using a driving simulator. A series of simulated driving tests covering two driving modules, including emergency braking (EB) and following braking (FB), at 50. km/h and 80. km/h were performed. Linear mixed models were established to evaluate driving performance in terms of braking reaction time (BRT), the standard deviation of lateral position (SD-LANE), and the standard deviation of speed (SD-SPEED).
Results: Driving performance in terms of BRT and SD-LANE was highly correlated with the level of alcohol consumption, with a one-unit increase in breath alcohol concentration (BrAC) degrading BRT and SD-LANE by 0.3% and 0.2%, respectively. Frequent drinkers generally reacted faster in their BRT than less-frequent drinkers and non-drinkers by 10.2% and 30.6%, respectively. Moreover, alcohol impairment had varying effects on certain aspects of the human control system, and automatic action was less likely to be affected than voluntary action from a psychological viewpoint.
Conclusion: The findings should be useful for planning and developing effective measures to combat drink driving in Chinese communities.
URI: http://hdl.handle.net/10397/61249
ISSN: 0001-4575
DOI: 10.1016/j.aap.2016.01.010
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