List of top Highway Engineering Questions on Highway Geometric Design asked in GATE CE

Given \( G_1 \) and \( G_2 \) are the slopes of the approach and departure grades of a vertical curve, respectively.
Given \( |G_1| < |G_2| \) and \( |G_1| \neq |G_2| \neq 0 \), Statement 1: \( +G_1 \) followed by \( +G_2 \) results in a sag vertical curve.
Statement 2: \( -G_1 \) followed by \( -G_2 \) results in a sag vertical curve.
Statement 3: \( +G_1 \) followed by \( -G_2 \) results in a crest vertical curve.
Which option amongst the following is true?

For a horizontal curve, the radius of a circular curve is 300 m with the design speed 15 m/s. If the allowable jerk is 0.75 m/s$^3$, what is the minimum length (in m, integer) of the transition curve?

As per the Indian Roads Congress guidelines (IRC 86: 2018), extra widening depends on which of the following parameters?

For a horizontal curve, the radius of a circular curve is 300 m with the design speed 15 m/s. If the allowable jerk is 0.75 m/s$^3$, what is the minimum length (in m, integer) of the transition curve?