Civil Engineering - Highway Engineering - Discussion

Discussion Forum : Highway Engineering - Section 1 (Q.No. 1)
1.
A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation is
1 in 40
1 in 50
1 in 60
1 in 70
none of these.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
95 comments Page 10 of 10.

Jay mishra said:   1 decade ago
I think superelevation = v^2/127r.

Surya said:   1 decade ago
e = V^2/gR.
V = 75% of design speed.
V = 0.75*75.
v = V/3.2.

Muleta Totoba said:   1 decade ago
Right it is not declared but the term curve seems something to be the given figure 1000 is the radius.

Arnab Chanda said:   1 decade ago
But it is not declared that 1000 m is the radius of the curve.

Yugananth P said:   1 decade ago
e = V^2/225R.

= 75 * 75/(225*1000).

= 1/40 (or).

= 1 in 40.


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