V2EX horizontal curve

Horizontal Curve

释义 Definition

水平曲线:道路、铁路等线路在平面(俯视图)上为改变行进方向而设置的曲线段,常用于连接两段直线或不同方向的路线,以保证行驶/运行的平顺与安全。(在工程语境中最常见;另在数学里也可泛指“水平方向的曲线”,但较少这样用。)

发音 Pronunciation (IPA)

/hrzn.tl kv/(美式常见)
/hrzn.tl kv/(英式常见)

例句 Examples

The road has a sharp horizontal curve near the bridge.
这条路在桥附近有一个急的水平曲线。

Engineers adjusted the horizontal curve radius to improve sight distance and reduce the risk of skidding in wet weather.
工程师调整了水平曲线的半径,以改善视距,并降低雨天打滑的风险。

词源 Etymology

horizontal 来自拉丁语 horizon(地平线、界限),引申为“水平的”;curve 来自拉丁语 curvus(弯曲的)。合起来在交通工程中固定指“平面上的转弯曲线”,用来与 vertical curve(竖曲线) 区分。

相关词 Related Words

文献与著作 Literary / Notable Works

  • A Policy on Geometric Design of Highways and Streets(AASHTO,“Green Book”)
  • Highway Engineering(常见教材书名,涵盖水平曲线设计)
  • Railway Engineering(常见教材书名,涉及线路平面曲线/水平曲线)
  • 各国/地区道路几何设计规范(如公路路线设计规范类文件,常以“水平曲线/平面曲线”章节出现)
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