隨著臺灣經濟蓬勃發展，交通科技之發達，汽機車數量急速成長且道路交通狀況日益複雜，道路交通安全更彰顯其重要性。本研究使用警政署民國九十三年道路交通事故之統計資料，除了了解A1類道路交通事故（造成人員當場或24小時內死亡的交通事故）之道路環境與當事者狀態概況外，並進而使用卡方獨立性檢定、卡方自動互動檢視法、比例勝算模型或邏輯斯迴歸模型，與多元對應分析，以了解影響肇事當事者死傷程度與造成重大交通事故的重要因素，提供國人及相關單位參考。 Due to the development of economy, as well as improvement of technology of transportation, the number of motor vehicles has increased rapidly, and traffic on the road becomes more complicated. The importance of road traffic safety cannot be emphasized more. This research uses the statistical data of the Road Traffic Accident from National Police Administration Ministry of the Interior in 2004. The article investigates the road environment and the party's state in the Fatal Traffic Accidents (the traffic accidents lead to the fact that people die on the spot or in 24 hours). On the other hand, it further utilizes several methods containing Chi-squared Test of Independence, Chi-Square Automatic Interaction Detection（CHAID）, Proportional Odds Model or Logistic Regression Model, and Multiple Correspondence Analysis, in order to understand the important factors that cause the injury degree of the trouble-making driver and the Heavy Severity Traffic Accident.
