基于宽容理念的高速公路设施优化设计研究

Optimization Design of Highway Facilities Based on Tolerance Conception

为了优化高速公路设施设计,减少交通事故发生,基于宽容性设计理念对高速公路设施进行优化。首先,采用平面几何法确定线形诱导标设置数量及位置,加强对驾驶员主动引导;其次,基于宽容理念对路侧净区的宽度、边沟形式进行优化设计,为冲出路外车辆提供"缓冲区";第三,在长大下坡路段合理设置避险车道及附属设施,减轻冲出路外车辆所受的伤害。

In order to optimize the design of highway facilities, and then reduce traffic accidents, this paper optimizes highway facilities based on tolerance conception. Firstly, this paper uses plane geometry method to determine the number and location of linear inducing signs, which could strengthen active guidance for the driver. Secondly, to optimize the design of the width of the roadside and ditch form based on tolerance conception to offers 'buffer zone' for out off-road vehicle. Thirdly, site reasonable hedge lanes and ancillary facilities in long steep downhill, reducing the harm of driver and vehicle out of the road suffered.