高速公路相邻互通式立交应以各自独立的形式存在,通常情况下其运营性能取决于互通两点之间的距离。此时,两个互通式立交之间净距离的控制就是要控制其最小间距,这种最小间距的控制目的,是要保证路段交通流的稳定,同时也可以保证足够的设置出口预告标志,使标志之间的距离合 Freeway interchange adjacent to each other should exist in their own separate form, under normal circumstances its operational performance depends on the distance between two points. At this point, the control of the net distance between two interchanges is to control their minimum spacing. The purpose of this minimum spacing control is to ensure the stability of the traffic flow at the road sections and to ensure that adequate exit warning signs are set so that The distance between the mark