GATE CE 2018 Set 2 — Question 64
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Transportation Engineering → Horizontal & Vertical Alignment → Superelevation
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Question
A 7.5 m wide two-lane road on a plain terrain is to be laid along a horizontal curve of radius 510 m. For a design speed of 100 kmph, super-elevation is provided as per IRC: 73-1980. Consider acceleration due to gravity as . The level difference between the inner and outer edges of the road (in m, up to three decimal places) is ______.
Correct answer
0.52 to 0.53
Solution
Given:
- Width of road () = 7.5 m
- Radius of curve () = 510 m
- Design speed () = 100 kmph
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