_For design, that length of transition curve should be taken which is$

1.	_For design, that length of transition curve should be taken which is$?
A.	based on allowable rate of change of centrifugal acceleration
B.	based on rate of change of super elevation
C.	higher of (A) and (B)
D.	smaller of (A) and (B)
Answer» D. smaller of (A) and (B)

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