三角警示牌

三角警示牌又稱三角牌，是交通事故發生後用來向過往的車輛示意此處發生交通事故、注意避讓、确保交通事故现场安全的牌子，有時會与警示灯一起搭配使用。

参考文献

 進一步閱讀 
 Allen, Merrill J., Stanley D. Miller, and James L. Short. "The effect of flares and triangular distress signals on highway traffic." Optometry and Vision Science 50.4 (1973): 305–315.
 Federal Motor Carrier Safety Regulations; Technical Amendments, 59 Fed. Reg. 49,585, 49,588 (September 29, 1994) (summarizes research about warning triangles)
United Nations Regulation No. 27. Uniform provisions concerning the approval of advance-warning triangles 

Category:道路交通安全
Category:道路交通標誌
Category:安全設備
Category:机动车法律