A new spiral trumpetinterchange has such advantages as dealing with the large elevation difference, increasing the ramp length, reducing the longitudinal, saving land and so on.
一种新型螺旋式喇叭形互通立交具有克服大高差、增大匝道长度、减少纵坡、节约用地等特点。
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Taking the primary design of Haioudao interchange in Guangdong province Humen 2ed Bridge project for example, this paper introduces several design techniques about this new spiral trumpetinterchange.
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.