摘要
为实现旧路改造时旧路平面及纵断面线形的拟合,在完成旧路路面分中点、一元线性回归穿线交点以及曲线参数初步配置的基础上,计算路面分中点至初步拟合平面线形的法线偏差,并依据法线偏差分布特征与圆曲线半径偏差及缓和曲线长度偏差的相关关系,调整旧路路面各段平曲线的圆曲线半径及缓和曲线长度,从而提高拟合精确度。
To realize the computer assisted fitting of the plane and vertical sections linear of the old-highway in the reconstruction, on the basis of having fixed the point of dividing equally road surface, threading and intersection by linear regression with one unknown quantity, the initial parameters of curve and the normal errors from the point of dividing equally road surface to initial fitting plane linear are calculated. Judging by correlation of normal error＇s distribution characteristics with the deviation of radius of circular curve and transition curve length, the radius of circular curve and transition curve length were corrected, by which the fitting accuracy of plane Linear can be improved.
出处
《山东交通学院学报》
CAS
2011年第2期65-69,共5页
Journal of Shandong Jiaotong University
关键词
旧路平面线形
计算机辅助拟合
法线偏差
拟合精确度
fitting plane linear in old-highway
fitting assisted by computer
normal error
fitting accuracy.
