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公路是个综合性的东西。设计建设一条畅通舒适的公路,要考虑各个方面:路线、路面、路基、桥涵等等。比如驾驶员的“容错性”,就是要容许驾驶员出一些小的错误,或者说误差,特别是要在一些弯道放宽边坡。要增设避险车道等等。又比如路面,水泥路上为了防滑,我们要增加防滑槽,这些都是很细节的地方了。还有桥梁,考虑到行车安
Road is a comprehensive thing. Design and construction of a smooth and comfortable road, to consider all aspects: routes, pavement, subgrade, bridge and so on. Such as the driver’s “fault tolerance” is to allow the driver to make some small errors, or errors, especially in some corners to relax the slope. To create a safe haven and more. In another example, the road, cement road in order to prevent slippery, we want to increase non-slip groove, these are very details of the place. There are bridges, taking into account traffic safety