| 山区高速公路螺旋展线路段线形安全评价方法 |
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| 引用本文： | 赵永平,杨少伟.山区高速公路螺旋展线路段线形安全评价方法[J].交通标准化,2009(13):43-46. |
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| 作者姓名： | 赵永平 杨少伟 |
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| 作者单位： | 长安大学特殊地区公路工程教育部重点实验室; |
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| 摘 要： | 根据螺旋展线路段的线形特点，将基于“速差”、“车型速差”和“速度梯度”的评价标准，以及考虑横断面变化路段、隧道路段、长大弯坡路段的运行速度修正模型应用于工程实例中，可使运行速度的评价方法适用于螺旋展线路段，确保线形设计的连续性和一致性。
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| 关 键 词： | 山区高速公路 螺旋展线 运行速度 速度修正模型 安全评价 |
Mountain Expressway Line Shape Safety Evaluation in Helix Line Development |
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| ZHAO Yong-ping,YANG Shao-wei.Mountain Expressway Line Shape Safety Evaluation in Helix Line Development[J].Communications Standardization,2009(13):43-46. |
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| Authors: | ZHAO Yong-ping YANG Shao-wei |
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| Institution: | (Key Laboratory for Special Area Highway Engineering of Ministry of Education, Chang＇an University, Xi＇an 710064, China) |
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| Abstract: | On the basis of line characteristics of helix line development, the evaluation criteria based on the "speed difference", "vehicle speed difference" and "velocity gradient" and the operating speed correction model considering variational transect section, tunnel section and long bending slope section are applied in engineering practice, which makes the evaluation method of operating speed be suitable to helix line development and ensures the continuity and consistency of line shape design. |
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| Keywords: | mountain expressway helix line development operating speed speed correction model safety evaluation |
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