高速公路互通立交加减速车道长度设计

高速公路互通立交加减速车道是高速公路事故多发地点,其长度是影响安全性的因素之一.在总结国内外加减速车道长度计算方法的基础上,提出不同主线设计速度对应不同匝道设计速度下的合理加减速车道长度,可为高速公路互通立交加减速车道安全设计、管理提供技术支持.

Length Design of Acceleration and Deceleration Lane at Expressway Interchange

Acceleration and deceleration lane at expressway interchange is the location where expressway ac- cident frequently happens; it is one of the factors which affect safety. This paper summarizes the calculation method of length of acceleration and deceleration lane at home and abroad. Meanwhile, according to different de- sign speed of cardinal line matching along with different design speed of ramp, the paper proposes rational length of acceleration and deceleration lane. The research achievement could provide technical support for safety design and management of acceleration and deceleration lane in expressway interchange.