汽車駕駛人在車輛行駛中使用行動電話對交通安全所造成的影響已引起研究人員與交通主管機關的注意。然而以往的研究較少關注通話時語意強度對駕駛績效的影 響。本研究以校園內所招募的45位不同性別與駕駛經驗者為對象，於實驗室中模擬汽車駕駛人於行車時在五種行動電話通話情境下，對駕駛績效的影響。結果顯 示，通話時之語意強度在不同的行動電話接聽情境下對駕駛績效並無顯著影響。然而，在駕駛中不論是以手持聽筒或免持聽筒進行通話都會降低影響交通安全之整體 駕駛績效。而女性受試者在安全駕駛績效上之表現較男性受試者差。此外，不同的駕駛經驗之受試者在不同的駕駛心智負荷下可能採取不同的駕駛策略，文中也一並 加以討論。The use of mobile telephones during driving has made researchers and authorities worry about the effect of mobile-telephone use on traffic safety. However, previous investigations of effects on semantic density during telephone conversation while driving are rare. The study was conducted in driving simulator cab in a lab. Forty five subjects with different gender and driving experience were recruited on campus. The effects of five different mobile-telephoning situations on driving performance were investigated. The results showed that semantic density of telephone conversation during driving may not affect driving performance. However, either hand-hold or hand-free mobile-telephoning impaired overall safety performance. The female subjects tended to perform less well than male subjects in driving performance. Finally, the driving strategies during different driving mental workload adopted by different driving experience subjects are also discussed.
