【摘要】 本文为寻求曲线超高顺坡缓和曲线的最佳线形,按缓和曲线所具备的五个条件设计了一族反余弦高指数正弦型缓和曲线。当这类曲线的指数在一定数值之内时,能得到比较理想的缓和曲线线型。由此,推荐曲线超高顺坡缓和曲线的最佳线形为:更多还原

【Abstract】 In order to determine the optimum form of a transition curve with curved superelevation slope, a group of arc-coslne high-exponential sine type transition curves is designed in this paper according to the five conditions they must satisfy. When the exponents of this kind of sine curves are limited within a certain value, a fairly ideal type of transition curves may be obtained. Therefrom, the optimum form of transition curves with curved superelevation slope is recommended by:max.K′=（1.2～1.35）/（Rl₀）,max.K″=（6～8）/（Rl₀²）.更多还原