本研究以相關分析及迴歸分析研究高速公路酒駕肇事與酒駕執法、社經因素之關聯性；研究結果，在執法部分，每週(月)整體酒駕執法與當週(月)、隔週(月)之整體酒駕肇事呈顯著負相關，以年為時間單位分析，年酒駕執法率與當年或隔年之A1類酒駕肇事發生率均呈顯著負相關，足見警察酒駕執法對酒駕肇事，確實產生相當的防制效果，且現時之執法對民眾之未來守法態度具有影響力；在社經因素方面，與國民年所得、汽車持有率呈顯著負相關；因此建議，除賡續加強落實酒駕執法外，並應配合教育宣導、修訂法規等其他防制措施，俾更有效遏止酒駕肇事的發生。

This study is to investigate the relation of freeway drunk driving accidents to law enforcement for driving while intoxicated, social and economic factors by using analysis of correlation and regression analysis. As shown in the results of the study, law enforcement for driving while intoxicated, the overall law enforcement per week / month is significantly negatively correlated with the overall drunk driving accidents for the same week / month and the next week / month. In terms of a whole year, law enforcement for driving while intoxicated per year is significantly negatively correlated with the incidence rate of Class A1 drunk driving accidents for the same year and the next year. Therefore, the police’s operation of law enforcement has considerable control and preventive effect upon the incidence rate of drunk driving accidents but also a great influence upon people’s future attitudes towards law abidance. As for social and economic factors, national annual incomes and vehicle ownership rates are significantly negatively correlated with the incidence of drunk driving accidents, it is suggested that law enforcement for driving while intoxicated should continue to implement, and other preventive and control measures such as education, propaganda, and legislation should be taken to effectively curb drunk driving accidents.