近年蓬勃發展的網路媒合外送平台產業衍生新的運輸型態，外送員以機車在道路上從事運輸工作，其駕駛行為同樣也正在影響著交通安全。本研究探討影響外送員風險駕駛行為的相關因素，建立外送員駕駛行為量測問卷，調查蒐集1,014份有效樣本，以結構方程式探討影響因素與風險駕駛行為之關係。結果顯示，外送員的工作強度與其外送時感受的時間壓力、從事風險駕駛行為有顯著影響；外送員的時間壓力對其本身感受的疲勞程度有顯著影響；外送員工作疲勞程度也顯著影響其風險駕駛行為的傾向。另差異分析發現性別、外送期間發生事故件數、較大工作負荷等因素對於4個潛在變項呈顯著影響。最後依分析結果進行管理作為討論，期有助訂定外送管理政策的參考。

In recent years, the booming industry of online on-demand delivery platforms has given rise to a new type of transportation, and the driving behaviors of motorcycle delivery riders employed in the industry are also affecting road traffic safety when they are engaged in work. This study examines the factors that influence the risky driving behaviors of delivery riders. A driving behavior questionnaire (DBQ) for delivery riders was developed and a total of 1,014 valid samples were collected. This study utilizes structural equation modeling (SEM) to build the cause-effect framework and clarify the relationship between the significant factors and risky driving behavior.The results show that the work intensity of the delivery riders has a significant impact on the time pressure and the risky driving behavior that occurs during delivery, while the rider's time pressure results in the fatigue of delivery drivers, then overwork and
fatigue are the leading causes of reckless riding. In addition, the study employs ANOVA analysis found that the delivery riders of gender, the number of traffic accidents during delivery, and the higher workload had significant effects on these four Constructs of the study. Finally, the discussion of the management practices based on the research results is expected to be helpful to formulate relevant policy management as a reference.