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菱形立交桥 特点:在主要干道与次要道路交叉时采用。直行车辆为立体交叉,右转车辆沿专用匝道转向,左转车辆在次要道路上平交,主要干道通行畅通,次要道路上有平面交叉。具有造型简单、占地少、干道通畅等特点。如北京市京开公路立交桥、大连市金三角立交桥等。 菱形立交桥的基本形式见图10.1。变化形式见图10.2、1O.3、10.4、10.5。(待续)
Diamond overpass characteristics: the main roads and secondary roads when used. The straight-ahead vehicle is a three-dimensional intersection. The right-turn vehicle turns along the special ramp. The left-turn vehicle is evenly intersected on the secondary road. The traffic flow of the main arterial road is smooth and there is a flat intersection on the minor road. Has a simple shape, small footprint, trunk and other features. Such as Beijing Jingkai Highway overpass, Dalian Golden Triangle overpass. The basic form of the overpass is shown in Figure 10.1. The changes are shown in Figure 10.2, 10.3, 10.4 and 10.5. (to be continued)