GATE CE 2024 Set 2 — Question 62
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Transportation Engineering → Railway Track Design → Cant Deficiency
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Question
A horizontal curve of radius (with transition curves on either side) in a Broad Gauge railway track is designed and constructed for an equilibrium speed of . However, a few years after construction, the Railway Authorities decided to run express trains on this track. The maximum allowable cant deficiency is .The maximum restricted speed (in ) of the express trains running on this track is _______________ (rounded off to the nearest integer).
Correct answer
113 to 116
Solution
1.Equilibrium Cant ():
For a Broad Gauge (), the equilibrium cant is given by:Given and :
2.Maximum Permissible Cant ():
The maximum cant for the express train is the sum of the equilibrium cant and the maximum allowable cant deficiency ():Given :
3.Maximum Restricted Speed ():
Using the cant formula for :Rounding to the nearest integer, we get .
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