为保证汽车在弯道上行驶时具有一定的视距,在弯道半径较小的情况下,就要求把弯道内侧阴挡驾驶员视线的障碍物予以清除。这个需要清除的范围就要用横净距确定。以往确定横净距一般都采用作图法。但是,这种方法工作量大,精度也差。本文将提出用公式计算横净距的方法。这个方法适用于设置缓和曲线的弯道,也适用于不设缓和曲线的弯道。 In order to ensure that the vehicle has a certain line of sight when driving on a curve, it is required to clear the obstruction of the sight of the driver on the inside of the curve when the curve radius is small. This need to clear the scope of the use of horizontal spacing to determine. In the past to determine the horizontal distance generally use the drawing method. However, this method is heavy workload and poor accuracy. This article will propose ways to calculate the horizontal distance using the formula. This method is suitable for setting the curve of the easing curve, but also for the curve without the easing curve.