The evaluation indexes are chosen, and a new method, called critical transition section length, is put forward to determine track transition section length.
指出了在确定轨道过渡段长度时，所采用的动力学性能评价指标，提出了确定轨道过渡段长度的方法。
2
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.
The cold-bend forming process was studied using energy method and a theoretical length expression of the transition zone of delormation was thus derived.