GATE CE 2026 Set 2 — Question 34
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Transportation Engineering → Horizontal & Vertical Alignment → Valley Curves
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Question
A downgrade of in meets an upgrade of in on a road. If the rate of change of grade is per , the length (in m) of the vertical curve between the two grades is ______ (rounded off to the nearest integer).
Correct answer
540 to 540
Solution
The initial grade is .
The final grade is .
The total change in grade is .
The rate of change of grade is per .
The length of the vertical curve is given by:Thus, the length of the vertical curve is .
The final grade is .
The total change in grade is .
The rate of change of grade is per .
The length of the vertical curve is given by:Thus, the length of the vertical curve is .
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