In: Civil Engineering
The following data is given for a horizontal highway
curve having 2 lanes with Lane width of 3.65 m each: Ruling design
speed is 110kmph, Allowable rate of change of circular acceleration
= 0.5 to 0.8. Allowable rate of introduction of super-elevation = 1
in 144, Take maximum allowable superelevation and lateral
frictional co-efficient is 0.15.
Calculate the length of a transition curve for following cases.
Rate of change of centrifugal acceleration
(C).
Rate of introduction of super-elevation.
Using empirical equations for plain and mountainous
terrain.