本研究從「使用與滿足」理論，以警察廣播電臺為探討的對象，研究聽眾願意主動提供路況資訊的使用動機與滿足程度。 警察廣播電臺為公營廣播媒體，節目內容以治安交通等公共服務為主。警廣自1971年設立第一座交通專業電臺臺北臺，以電話接收聽眾提供路況；於1996年率先啟用智慧型電話系統，將全省免付費路況提供專線統一為0800000123，受理來自全省各地聽眾提供即時路況。近年來，路況報導為廣播閱聽眾收聽廣播的重要因素之一，且從幾次重大的意外災害發生後，警廣很快的從聽眾提供的資訊掌握災情，聽眾主動提供的資訊發揮了功能。 本研究以量化研究方式，採用問卷調查法。研究結果發現，聽眾願意主動提供路況的動機，分別為「分享參與」、「資訊守望」、「人際連絡」、「尋求解決困難的方法」以及「個人化需求」等五個構面。並且想知道即時的路況是聽眾收聽警廣最主要的動機。 關鍵詞：使用與滿足、主動的閱聽人、廣播、路況報導 / Radio Listener’s Media Use and Gratification－ Example of the Police Broadcasting Service Abstract This study employs 「uses and gratifications」theory to investigate motivations for actively providing road condition information and resulting gratification among listeners of Police Broadcasting Service. Police Broadcasting Service is a public radio station with program content chiefly comprising public service matters connected with law and order and transportation. Since it established Taiwan's first specialized traffic station—Taipei Station—in 1971, Police Broadcasting Service has received telephone reports of road conditions from listeners. The station launched the 0800000123 smart phone system—Taiwan's first—in 1996, to provide a Taiwan-wide toll-free road condition hotline to accept real-time road condition reports from listeners throughout Taiwan. In recent years, the station's road reports have become one of the most important factors causing the public to listen to the station. Furthermore, after several major accidents that occurred in the past, Police Broadcasting Service quickly gained a picture of the situation from information provided by listeners, showing that the voluntary provision of information by listeners is very effective. This study employed a quantitative research approach and used the questionnaire survey method. The study's findings indicated that listeners' motivations for actively providing road information included the five aspects of 「shared participation」, 「information watchman」, 「interpersonal contact」,「looking for means of solving problems」, and 「individual needs」. Furthermore, wishing to hear real-time road conditions constitutes listeners' chief motivation for listening to Police Broadcasting Service. Keywords: uses and gratifications、active audience、listeners、radio station、road condition report