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路面平整度和行车速度单独或联合作用都会对行车舒适安全性产生重要影响。通过设计正弦波路面,开发室内模拟舱正弦波路面场景,开展室内驾驶模拟实验,研究了路面平整度对驾驶员选择驾驶速度的影响,拟合出了国际平整度指数IRI与车速间的关系曲线,并对比了世界银行技术文件推荐的IRI数值下的速度值。研究表明,文中得出的不同平整度下的舒适驾驶速度与世界银行推荐值基本吻合,不同平整度时驾驶员会以不同的驾驶速度进行驾驶,波浪路面具有较好的限速效果。
Pavement smoothness and driving speed alone or in combination will have a significant impact on the comfort and safety of driving. By designing the sine wave pavement and developing the sine wave pavement scene of indoor simulation cabin, the indoor driving simulation experiment was carried out. The influence of pavement roughness on driver’s choice of driving speed was studied, and the relationship curve between international roughness index IRI and vehicle speed was fitted , And compares the speed values at IRI values recommended by World Bank technical papers. The research shows that the comfortable driving speed under different flatness is basically consistent with the World Bank recommendation. The driver with different flatness will drive at different driving speeds and the wavy road surface has good speed limiting effect.