GPS導航結合全球定位系統（GPS）與電子地圖資料庫，有助於尋路指引；然而車用導航之研究多著重於汽車，機車導航研究卻付之闕如。 著眼於機車導航之潛在問題與危險，將GPS導航所釋出之導向資訊應用於安全帽上，以LED及聽訊之形式提供機車騎士尋路之指引。
研究採實驗方法，探討以LED及聽訊結合安全帽作為轉向指引之尋路績效。自變項為轉向訊號：(1) LED、(2) 聽訊、(3) LED結合聽訊。實驗依變項為尋路績效：(1) 尋路速度、(2) 尋路正確率、(3) 接受轉向訊號之反應時間、(4) PDT偵測率、(5) 聽覺干擾反應時間。實驗後進行主觀評量問卷(Likert-type)，用以瞭解受測者對LED及聽訊之主觀偏好。
研究結果顯示，轉向訊號為LED時，尋路速度顯著快於聽訊與LED結合聽訊；接受轉向訊號之反應時間方面，受測者對LED之反應時間顯著短於聽訊與LED結合聽訊；得以推論，轉向訊號為LED時，在轉向時較有效率。以LED結合聽訊作為轉向訊號時，PDT偵測率較高，對聽覺干擾之反應時間亦較短，顯示接受此訊號所需之注意力負荷較低。主觀評量結果以LED結合聽訊有較高之整體滿意度。

GPS (Global Positioning System) navigation system which combines GPS and digital map database is now recognized as a promising tool for wayfinding and can navigate users to the destination. Researches about vehicle using GPS navigation system are plenty for motors but few for motorcycles. There are problems using navigation aids while riding and these may sometimes increase the harzard of riding. The approach is to augment GPS route guidance with LED and auditory display into motorcycle helmet.
The experimental study is designed to evaluate the efficiency of LED and auditory display in route guidance. Variables in this experiment are route guidance signals (1) LED, (2) Auditory display, (3) Both LED and auditory display. Dependent variables are (1) Riding speed in wayfinding, (2) Accuracy of following the route, (3) Consumed time in reaction to signal, (4) Percentage of interference detected, (5) Consumed time in reaction to auditory interference. After the wayfiding task, participants are asked to fill out a questionnaire which consists of Likert-type questions about subjective preference for LED and auditory display.
Results show that when route guidance signal is LED, participants show significantly quicker riding speed in wayfinding than the other two signals. And participants show significantly quicker response to LED than the other two route guidance signals. It can be concluded that LED is more efficient as a route guidance signal than the other two signals. As to the percentage of interference detected, participants show higher detecting rate of interference and quicker response to auditory interference with both LED and auditory display. This means that when route guidance signal is both LED and auditory display, users need lower attention load. Results from subjective questionnaire show that participants have a preference for both LED and auditory display.

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