本研究以乘客長期的公車使用行為，評估公車動態資訊服務是否有助於延長乘客將公車當成主要交通工具的年期，並對公車動態資訊使用者特性進行分析。本研究以高雄市公車動態資訊系統啟用後7年間乘客的公車使用行為資料，利用存活分析檢驗公車動態資訊系統是否有助於延長乘客將公車當成主要交通工具的年期，並以邏輯斯迴歸分析使用資訊服務乘客的特性。研究結果顯示，有使用公車動態資訊乘客將公車當成主要交通工具的平均年期，相對於未使用乘客多0.19年；另女性、高學歷以及年紀較輕乘客是資訊服務的主要使用族群。本研究成果不僅可以為公車動態資訊系統提供更具學術基礎的效益分析，也可協助主管機關後續推動公車動態資訊服務時做更有效的策略規劃。

This study attempts to evaluate whether bus information service could help extend the duration for which passengers use bus as their major transportation mode by observing passengers’ bus usage, and by analyzing the characteristics of passengers using bus information service. The 7-year data were collected since the complete deployment of the Kaohsiung City bus information service. The survival analysis technique was adopted to evaluate the influence of introducing the bus information system on extending the duration for which passengers used bus as their major transportation mode. Furthermore, this study applied logistic regression to examine passengers’ characteristics to better understand the major user groups. The results show that the average duration of using buses as the major transportation mode is 0.19 years longer for the passengers who used bus information service than those who did not use bus information service. It is therefore concluded that bus information service can extend the duration for which passengers use bus as their major transportation means. In addition, the logistic regression analysis also identifies that female, highly educated, and young passengers are the main user groups. The study can not only provide a benefit analysis with stronger academic foundation, but also help authorities to effectively refine strategic plans when promoting bus information service in the future.