| 基于路段平均速度的坡道变速车道长度修正研究 |
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| 引用本文： | 裴玉龙,邢恩辉.基于路段平均速度的坡道变速车道长度修正研究[J].公路交通科技,2004,21(8):99-102. |
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| 作者姓名： | 裴玉龙 邢恩辉 |
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| 作者单位： | 哈尔滨工业大学交通科学与工程学院,黑龙江,哈尔滨,150090 |
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| 摘 要： | 通过对7条国道交通量数据的统计分析,选出我国高等级公路上行驶的有代表性的车型作为研究对象,以道路上车辆行驶的路段平均速度为基础,利用汽车行驶理论推导出坡道上变速车道长度修正系数的计算公式。讨论道路坡度对车辆加速性能的影响,进而推导出道路坡度与变速车道长度的关系,同时计算出不同道路坡道时的变速车道长度的修正系数,并与现行道路路线设计规范进行对比分析,给出坡道上变速车道长度的修正系数参考值,供公路设计人员设计山区或丘陵区高等级公路时参考。
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| 关 键 词： | 路段平均速度 变速车道 汽车理论 修正系数 |
| 文章编号： | 1002-0268(2004)08-0099-04 |
Research on Slopeway Amendment of Speed-change Lane Lengths Based on Road Average-speeds |
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| PEI Yu-long,XING En-hui.Research on Slopeway Amendment of Speed-change Lane Lengths Based on Road Average-speeds[J].Journal of Highway and Transportation Research and Development,2004,21(8):99-102. |
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| Authors: | PEI Yu-long XING En-hui |
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| Abstract: | Taking the typical vehicle as the research objections through the data analysis of traffic volume of 7 highways,based on road average-speeds,the research described in this paper calculation formula of speed-change lane lengths correction factor on slopeway,utilized the theories of vehicle dynamics.The effects of road slope gradient on vehicle accelerating performance were discussed and the co-relation between the slope gradient and the speed-change lane length was derived,together with correction factors for different slopes and speed-change lanes,compared with the currently effective specifications.The results could be used as design references for expressway design in mountain areas. |
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| Keywords: | Road average-speed Speed-change lanes Vehicle dynamics Correction factor |
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