Based on survey data,the regression model between operation speed of car and plane curve radius of freeway was established and the calculation example was presented.
以现场实测数据为依据,建立了高速公路平曲线起终点小型车运行车速与平曲线半径的回归模型,并给出了计算实例。
参考来源 - 高速公路直线段最大长度合理取值研究·2,447,543篇论文数据，部分数据来源于NoteExpress
The results indicate that the axle load and curve radius are two key factors in the wear of rail.
结果表明：轴重与曲线半径是影响钢轨磨损的主要因素。
The wear volume increases accordantly with the vertical load increasing or the curve radius decreasing.
试样磨损量随着载荷的增加而增加，也随着曲线半径的减小而增加；
Theoretical analysis proved that the curve radius critical value of free way should be adopted by the limit of minimum radius .
理论分析证明，高速公路曲线半径临界值应采用极限最小半径。
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