互通立交的型式很多，有喇叭型、菱形、环形、苜蓿叶型、半定向式、定向式及复合式等几种基本形式。

There are many types and forms of interchange, such as trumpet type, rhombus type, ring type, alfalfa leaf type, partly directional form, directional form, compound form and so on.

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以南京市新庄立交为例，运 用该方法调查，计算底层平面环形 交叉口各进口分流向的交通量。

As an example, the paper demonstrates an application of the new method to observing traffic at the ground tier circle of the interchange at Xinzhuang Rd.

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