The length of the transition curve on the basis of the allowable rate of introduction of superelevation using the given data will be approximately ______.
Design speed = 80 kmph
The radius of the circular curve = 450 m
Pavement width including extra widening = 7.5 m
Allowable rate of introduction of superelevation
(Pavement rotated about centre line) = 1 in 125
1
25 m
2
30 m
3
35 m
4
40 m