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本文是“公路平面线形与行车速度的关系”研究课题的继续,目的是求得公路纵断面线型与行车速度的关系。在确定的路线平、纵、横断面与路面条件下,方能确定沿线的行车速度变化曲线,以评定路线设计质量的优劣;并能较好地进行路线设计方案的比较和及时发现与修改容易发生行车事故的设计路段;同时,能为旧路改造较科学地从旧路线形实际出发,而合理确定各路段的取舍。
This article is the continuation of the research topic of “the relationship between the road surface line and the driving speed”, and aims to find out the relationship between the road profile and the driving speed. Under certain conditions of flat, longitudinal, cross-section and pavement conditions, the curve of driving speed along the line can be determined to evaluate the quality of route design, and the route design scheme can be better compared with the timely detection and modification Traffic accident prone to design sections; the same time, can transform the old road more scientifically from the actual shape of the old route, and reasonable to determine the choice of the various sections.