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基于驾驶行为需求的长大纵坡界定

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基于驾驶行为需求的长大纵坡界定
The Definition of Long Steep Downgrade Based on Driver Behavior
投稿时间：2016-04-14
DOI：10.15918/j.tbit1001-0645.2017.06.008
中文关键词:安全评价高速公路长大纵坡驾驶行为运行速度平均纵坡
English Keywords:safety evaluationexpressway long steep downgrade sections in mountainous areadriving behaviorrunning speedaverage longitudinal slope
基金项目:国家自然科学基金资助项目（61531005）；云南省交通运输厅科技项目（2014-221-02）
作者单位
胡江碧北京工业大学 城市交通学院, 北京 100024
李晓宇北京工业大学 城市交通学院, 北京 100024
罗绍建云南省公路开发投资有限责任公司, 云南, 昆明 650200
王荣华北京工业大学 城市交通学院, 北京 100024
高小娟北京工业大学 城市交通学院, 北京 100024
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中文摘要:
考虑到山区高速公路的设计中长大纵坡路段的设计，且现行路线设计规范中没有针对长大纵坡路段给出界定标准的问题.本文从驾驶需求出发，将车辆运行速度作为驾驶行为的宏观表现，对长大纵坡路段驾驶行为特性进行分析.采集20名大货车驾驶员在长大纵坡路段实车试验数据，分析得到驾驶员在长大纵坡路段运行速度与平均纵坡坡度和坡长之间的互动关系，建立了大货车运行速度预测模型.分析得到设计速度为60 km/h的山区高速公路在不同平均纵坡条件下最大坡长.
English Summary:
It is often meet in the process of designing the expressway in the mountainous area to design long steep downgrade section. But the current route design specification doesn't have the definition criterion of long steep downgrade sections. Starting from the driver's driving behavior and driving needs, the running speed was taken as the macro performance of driving behavior to analyze the performance of driving behavior in this article. Some experimental data were collected from the real vehicle test on 20 truck drivers in the mountainous expressway long steep downgrade section. By analyzing the data, the correlation between the speed with the average longitudinal slope and the longitudinal slope length was found, and a prediction model was established for the truck operating speed. And then the maximum longitudinal slope length under the condition of different longitudinal slope was got at 60 km/h design speed. The conclusion can provide a reference for the designing and operation management of expressway long steep downgrade in mountainous area.
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