利用导线网进行二级公路定线方法

Research of the Length of Acceleration Lane of Interchange

提出在二级公路定线时，可利用导线网中的导线点位置进行线位控制．导线点的布设一方面作为测设路线中桩的坐标参考点，另一方面作为路线定线的线位控制点．用导线图代替地形图进行纸上定线，实地放线．利用此法既节省了测设地形图的时间，又提高了道路定线质量．

According to this paper the lenth of acceleration lane of interchange is made up of two elements. The first is the acceleration length. The second is the length consumed while the driver finds out the acceptable gap of passing through traffic.