山区公路的地形条件复杂,是重特大交通事故的常发地点,本文从交通安全设施的功能分析和设置原则等方面来探讨山区公路安全行车保障问题,并将安全行车保障措施的设置新理念应用于公路的交通工程设计中。 Mountainous terrain conditions are complex and are frequent places of major traffic accidents. This paper explores the safe driving guarantee of mountainous highway from the aspects of functional analysis and setting principles of traffic safety facilities, and applies the new concept of setting safe driving safeguards In the highway traffic engineering design.