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平曲线视距最大横净距(不设缓和曲线)的计算公式,在《公路路线设计规范》第5.9.6条表5.9.6中已有规定。但这两条公式都有局限性,即只能计算出曲线中间点的最大横净距b值,而曲线起(讫)点和曲线上任意点的h值,数十年来基本上依靠图解法解决。有些经验因误差大或计算过繁均未推广。根据过去曾用图解法编过横净距表的一点体会,结合当前带函数计算器普遍应用的条件,改进出一种适合养护部门改善公路视距时,能在现场求出各桩号横净距h值的
The formula for calculating the maximum horizontal clearance (without mitigation curve) of the line of sight of a flat curve is specified in Table 5.9.6 of Section 5.9.6 of the Code for Design of a Highway Route. However, these two formulas have the limitation that only the maximum horizontal distance b at the middle point of the curve can be calculated, while the value of h at any point on the curve and the curve basically relies on graphic method solve. Some experience due to large error or calculated are not promoted. Based on the past experience of using the graphical method of cross-spacing table, combined with the current prevalence of function calculators to improve the conditions for a conservation department to improve road line of sight, the station can be found in the net horizontal post The value of h from