| 中法城市快速路参考速度相关几何特性的差异比较研究 |
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| 作者单位： | ;1.中铁第一勘察设计院集团有限公司 |
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| 摘 要： | 结合近年在海外道路工程设计方面的经验,对比阐述中国与法国规范关于城市快速路参考速度相关几何特性的异同。通过对市政快速道路的定义、圆曲线半径、超高、缓和曲线、纵坡、竖曲线和行车视距的对比研究表明:法国规范限制性条文较少,多数设计指标限值不同程度有所放宽,而对于行车安全视距要求高。差异的主要原因是客观环境下参数取值以及设计理念、方法有别,相对于我国规范的面面俱到和操作性强的特点,法国规范总体要求比较灵活和宽松,设计者可有更大的发挥空间。
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| 关 键 词： | 快速路 几何设计 对比分析 技术指标 法国 中国 |
A Comparative Study on Differences of Key Technical Standards for Urban Expressway Geometric Design between China and France |
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| Institution: | ,China Railway First Survey and Design Institute Group Co.,Ltd. |
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| Abstract: | Based on the experiences in road design abroad in recent years,this paper expounds the similarities and differences in geometric characteristics associated with reference speed of expressway between China and France. The comparison and analysis of definition,circular curve radius,superelevation,easement curve,longitudinal slope,vertical curve and the driving range indicate that France has less restrictive provisions, moderate design limits, but strict line-of-sight requirement. The differences lie in the selection of parameters, design concepts and approaches under objective environments. Compared with the address of Chinese standards in comprehensiveness and practicability,French standard is more flexible to grant designers with more rules to play in design. |
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| Keywords: | Expressway Geometric design Comparison and analysis Technical standards France China |
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