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 2 of 10.

Manoj kumawat said:   1 decade ago
According IRC : The super-elevation is calculated for 75% of design speed.

So e = V^2/225R.

27-27 said:   1 decade ago
Design speed is given use: e = (0.75v)^2/gR.

In a question if they are given only speed then use: e = v^2/gR.

Aditya said:   1 decade ago
Guys can you please tell me the density of GSB, WMM, DBM and also BC?

BANOTH RAMESH said:   1 decade ago
ANS (A).

e = V^2/225R.
e = 0.025 = 1 in 40.

Ram kumar said:   10 years ago
e = v^2/(127R) this formulas use.

And get the super elevation.

Pratik said:   10 years ago
Radius is not mentioned.

Mohamed Yaagob said:   10 years ago
F = 0 V = 0.75 V design speed.

E = (0.75 V)^2/(127 R).

Prashant said:   10 years ago
1000 m is length of curve here, not radius.

IES AKP said:   10 years ago
1000 m is radius, it can't be length because there is no relation to provide length.

Osi said:   9 years ago
But we have studied it in the formula = v^2/126R. I am confusing which one is correct.


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