Analysis of contributory factors for driving under the influence of alcohol: A stated choice approach

This study adopts the stated choice modeling approach to explore the contributory factors and circumstances for driving after drinking. A total of 308 drivers who participated in the Traffic Safety Reeducation Program during the period between October 17 and November 5, 2010 in Taiwan were selected to answer the questionnaire. The survey results indicate that a relatively large proportion of respondents lack of full knowledge of drunk driving regulations and the effects of impaired levels on driving ability. The results of stated choice analysis further indicate that level of impairment, police enforcement, driver’s drinking habits and knowledge of drunk driving regulations can significantly affect drivers’ choice of driving after they drink.

► This study adopts stated choice modeling approach to explore the contributory factors for driving after drinking.
► 308 drivers who participated in Traffic Safety Reeducation Program in Taiwan were selected to answer the questionnaire.
► The survey results indicate that most of the respondents lack of full knowledge of drunk driving regulations.
► Impaired level, police enforcement and driver’s drinking habits are the significant factors for driving after drinking.