Civil Engineering - Highway Engineering - Discussion

Discussion Forum : Highway Engineering - Section 1 (Q.No. 8)
8.
If the ruling gradient on any highway is 3%, the gradient provided on the curve of 300 metre radius, is
2.00%
2.25%
2.50%
2.75%
3.00%
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
63 comments Page 7 of 7.

Jebessa F said:   8 years ago
Why the value 75/300 is taken?

Lone Khursheed said:   8 years ago
According to IRC, the grade compensation is not necessary for gradients flatter than 4% and therefore when applying grade competition correction, the gradients need not be eased beyond 4%.

Jitendra Singh said:   8 years ago
Grade compensation = 75/r = 75/300 = 3 - 0.25 = 2.75%.


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