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Transition curve
Press F4 key in the “HZ AL Screen” and a transition curve can be defined. The inputting
of transition curve consists of transition curve parameter “Para”
，
starting radius , and ending
radius . If the input radius is ∞ you can input 0 as its value.
When Rs and Re value is positive, transition parameter A is symbolic number.
The rule of transition curve parameter A : Looking along the forward direction of the curve.
When the curve rotates to right, the radius value is positive. When the curve rotates to left, the
radius value is negative.
