草原公路平面线形对驾驶员视觉舒适性的影响

发布时间：2018-03-25 17:18

本文选题：草原公路　切入点：眼动指标　出处：《内蒙古农业大学》2014年硕士论文

【摘要】：在公路交通系统中,人、车、路三个要素必须协同运作才能够构成一个完整的系统。而公路线形是公路主要结构的一个重要因素,因此,道路线形是否合理将影响到整个道路交通系统的安全、经济、舒适功能的发挥。我国目前已有的公路线形设计理论主要是以汽车行驶理论为依据,从安全的角度对线形进行分析,没有深入考虑驾驶员行车舒适性需求。本研究思想是在前人已有的研究基础上,以内蒙古地区典型的草原公路平面线形为研究对象,通过驾驶员动态视觉变化研究公路平面线形是否适应驾驶员实际驾驶行为的需求,从大量的实驾行车实验数据中,寻找公路平面线形与驾驶员眼动指标的变化关系,建立模型,并在模型中分析讨论适合驾驶员视觉舒适性的平面线形指标。研究表明：直线长度过长会对驾驶员视觉造成明显的影响,驾驶员视觉舒适性降低,易引发交通事故,建议草原公路的直线长度最短应大于1600m,最长要限制在4200m范围内,保证驾驶员的行车视觉舒适性；平曲线半径大小对行驶舒适性有着明显的影响,平曲线半径并非越大越好,当曲线半径在2300～2800m范围内视觉较为舒适,有利于驾驶员舒适行车；在草原公路平面线形组合路段中,驾驶员在长直线路段与小半径曲线组合的这种平面线形组合路段行驶时,视觉舒适性较差,非常不利于驾驶员行车舒适,在4000m长直线与半径为1500m的曲线半径行驶时,驾驶员的视觉舒适性较好。说明在现有的草原公路平面线形组合路段中,驾驶员在此类型平面线形组合内行驶时,视觉舒适性最优,此组合路段较为符合驾驶员视觉舒适性需求。
[Abstract]:In the highway traffic system, the three elements, people, cars and roads, must work together to form a complete system, and the highway alignment is an important factor in the main structure of the highway. Whether the road alignment is reasonable or not will affect the safety, economy and comfort function of the whole road traffic system. From the point of view of safety, the line shape is analyzed, and the driver's driving comfort is not considered in depth. This research idea is based on the previous research, taking the typical grassland highway plane alignment in Inner Mongolia as the research object. Based on the dynamic visual changes of the driver, this paper studies whether the highway plane alignment can meet the needs of the driver's actual driving behavior. From a large number of driving experimental data, the relationship between the highway plane alignment and the driver's eye movement index is found, and the model is established. The plane linear index suitable for driver's visual comfort is analyzed and discussed in the model. The study shows that the long line length will obviously affect the driver's vision, and the driver's visual comfort will be reduced, which will easily lead to traffic accidents. It is suggested that the shortest line length of the grassland highway should be more than 1600m, and the longest length should be limited within the range of 4200m. The size of horizontal curve radius has obvious influence on driving comfort. The bigger the curve radius is, the better. When the curve radius is in the range of 2300 ~ 2800m, it is more comfortable for driver to drive comfortably. In the steppe highway plane linear combination section, the driver in the long line section and the small radius curve combination of this kind of plane line combination section driving, the visual comfort is poor, is very unfavorable to the driver driving comfortable, When the curve radius of 4000m long line and radius is 1500m, the driver's visual comfort is better. It shows that in the existing steppe highway plane line combination section, the driver's visual comfort is the best when driving in this type of planar linear combination. The combined road section meets the needs of driver's visual comfort.
【学位授予单位】：内蒙古农业大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：U491.25

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