平面线形与纵断线形的组合设计,是线形设计的最后阶段。过去,我们的公路设计工作中有所考虑,有的设计人员也进行一些组合设计,但那主要是对等级较低的公路做了一些工作。关于线形调和的问题,因公路标准高低不同,其必要性也不一样。对较高等级的公路如何进行线形的组合设计,新《标准》作了规定,主要考虑,在进行平纵面组合设计时,突出的是要满足驾驶人员的视觉与心理的要求,这是因为驾驶人员以高速行车时,是通过视觉、运动感觉和时间变化的感觉来判断线形的。视觉是连接公路与 The combination of planar and longitudinal linear design is the final stage of linear design. In the past, our road design work has been taken into account, and some designers also make some combination of design, but that is mainly done on the lower grade roads to do some work. With regard to the problem of linear reconciliation, the necessity is different because of the different standards of road standards. The new “standard” provides for the linear combination design of the higher level of the road, the main consideration, in the combination of flat surface design, the outstanding is to meet the driver’s visual and psychological requirements, this is because When drivers drive at high speed, they judge the shape of the line by the sense of sight, movement and time. Vision is to connect the highway with