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Effects of different blood alcohol concentrations and post-alcohol impairment on driving behavior and task performance.
Traffic Inj Prev. 2010 Aug; 11(4):334-41.TI

Abstract

OBJECTIVE

A study using simulator methodology was conducted to investigate the effects of (1) different blood alcohol concentrations (BAC) of 0, 0.05, 0.08, and 0.10 percent and (2) post-alcohol impairment (where BAC approximately 0%) on driving behavior and subsidiary cognitive task performance.

METHODS

Two driving sessions were investigated, that is, drunk driving and post-alcohol driving, with each requiring approximately 20 min of driving. In addition to driving safely, participants were instructed to perform the critical flicker fusion (CFF) test and completed the NASA-TLX mental workload questionnaire. Eight licensed drivers (6 males, 2 females) participated in this 2 (road complexities) x 2 (simulated driving sessions) x 4 (levels of BAC) within-subjects experiment.

RESULTS

The study revealed that higher BAC levels were associated with lower performing driving behavior. The driver's mental workload reached the highest values in the post-alcohol session. In terms of tasks involving divided attention, the traffic sign distance estimation showed significant deterioration with increased BAC levels.

CONCLUSIONS

The relationship between drunk-driving behavior and alcohol dosage was supported in this study. Noticeably, no significant difference was found between drunk driving and post-alcohol driving, indicating that even in the post-alcohol situation, the impairment still remained significant enough to jeopardize traffic safety as much as it does in the case of drunk driving. In real-life situations, adopting a rest-time strategy to avoid post-alcohol impairment effects may not be the most appropriate solution by drivers; rather, drivers should be given some tests to verify the probability of post-alcohol effects on driving.

Authors+Show Affiliations

Department of Industrial Engineering and Management, National Yunlin University of Science and Technology, Douliu, Taiwan. liuyc@yuntech.edu.twNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20730680

Citation

Liu, Yung-Ching, and Chin Heng Ho. "Effects of Different Blood Alcohol Concentrations and Post-alcohol Impairment On Driving Behavior and Task Performance." Traffic Injury Prevention, vol. 11, no. 4, 2010, pp. 334-41.
Liu YC, Ho CH. Effects of different blood alcohol concentrations and post-alcohol impairment on driving behavior and task performance. Traffic Inj Prev. 2010;11(4):334-41.
Liu, Y. C., & Ho, C. H. (2010). Effects of different blood alcohol concentrations and post-alcohol impairment on driving behavior and task performance. Traffic Injury Prevention, 11(4), 334-41. https://doi.org/10.1080/15389581003747522
Liu YC, Ho CH. Effects of Different Blood Alcohol Concentrations and Post-alcohol Impairment On Driving Behavior and Task Performance. Traffic Inj Prev. 2010;11(4):334-41. PubMed PMID: 20730680.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of different blood alcohol concentrations and post-alcohol impairment on driving behavior and task performance. AU - Liu,Yung-Ching, AU - Ho,Chin Heng, PY - 2010/8/24/entrez PY - 2010/8/24/pubmed PY - 2010/10/21/medline SP - 334 EP - 41 JF - Traffic injury prevention JO - Traffic Inj Prev VL - 11 IS - 4 N2 - OBJECTIVE: A study using simulator methodology was conducted to investigate the effects of (1) different blood alcohol concentrations (BAC) of 0, 0.05, 0.08, and 0.10 percent and (2) post-alcohol impairment (where BAC approximately 0%) on driving behavior and subsidiary cognitive task performance. METHODS: Two driving sessions were investigated, that is, drunk driving and post-alcohol driving, with each requiring approximately 20 min of driving. In addition to driving safely, participants were instructed to perform the critical flicker fusion (CFF) test and completed the NASA-TLX mental workload questionnaire. Eight licensed drivers (6 males, 2 females) participated in this 2 (road complexities) x 2 (simulated driving sessions) x 4 (levels of BAC) within-subjects experiment. RESULTS: The study revealed that higher BAC levels were associated with lower performing driving behavior. The driver's mental workload reached the highest values in the post-alcohol session. In terms of tasks involving divided attention, the traffic sign distance estimation showed significant deterioration with increased BAC levels. CONCLUSIONS: The relationship between drunk-driving behavior and alcohol dosage was supported in this study. Noticeably, no significant difference was found between drunk driving and post-alcohol driving, indicating that even in the post-alcohol situation, the impairment still remained significant enough to jeopardize traffic safety as much as it does in the case of drunk driving. In real-life situations, adopting a rest-time strategy to avoid post-alcohol impairment effects may not be the most appropriate solution by drivers; rather, drivers should be given some tests to verify the probability of post-alcohol effects on driving. SN - 1538-957X UR - https://www.unboundmedicine.com/medline/citation/20730680/Effects_of_different_blood_alcohol_concentrations_and_post_alcohol_impairment_on_driving_behavior_and_task_performance_ L2 - http://www.tandfonline.com/doi/full/10.1080/15389581003747522 DB - PRIME DP - Unbound Medicine ER -