Drinking alcohol behavior (volume and frequency of drinking) and driving behavior (driving after drinking and driving without drinking) lead to the difference in level of opinion toward drinking and driving at 0.05 level . The result was supported by the study of Parichart Sathapitanon et al . (2006), “Perception, value and support toward measures in decreasing traffic accidents related driving after drinking” which found that there was significant relationship between person who had ever driven after drinking with perception of campaign concerning traffic accident in Thailand.