GATE & PSUs - Civil Engineering (CE)

Highway Geometric Design (Sight Distances, Superelevation, Transition Curves) question bank (Transportation Engineering)

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Q1.
What is the equilibrium superelevation $e$ required on a horizontal highway curve of radius $R = 250\text{ m}$ for a design speed of $V = 80\text{ km/h}$ so that no lateral friction is mobilized?

(A)
$e = 0.202$ ($20.2\%$)
(B)
$e = 0.070$ ($7.0\%$)
(C)
$e = 0.125$ ($12.5\%$)
(D)
$e = 0.045$ ($4.5\%$)
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Q2.
[Highway Geometric Design (Sight Distances, Superelevation, Transition Curves) Concept 5] What is the equilibrium superelevation $e$ required on a horizontal highway curve of radius $R = 250\text{ m}$ for a design speed of $V = 80\text{ km/h}$ so that no lateral friction is mobilized?

(A)
$e = 0.202$ ($20.2\%$)
(B)
$e = 0.070$ ($7.0\%$)
(C)
$e = 0.125$ ($12.5\%$)
(D)
$e = 0.045$ ($4.5\%$)
Show answer & solution
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