阐述了决定缓和曲线的主要因素，指出了缓和曲线（参数、长度）的选取和实际应用。

The paper discussed the main factors of influencing transition curve, introduced the choice and application of transition curve parameter and length.

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本文结合施工实践，推导给出了缓和曲线段钢箱梁肋板、边线长度和坐标的计算公式，用于缓和曲线钢箱梁和其它结构梁的放样计算。

The paper gives the calculation formula of the steel box beam rib plate, side line length and coordinate of transition curve sections combined with construction practice.

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此外，通过传统的质点方法和行驶动力学，以缓和曲线长度为例对线路设计参数进行了计算。

In addition, calculations through traditional method such as particle means and driving dynamics for line design parameters are also done.

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