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What is the superelevation for a horizontal highway curve of radius 500 m and speed 100 km/h in mixed traffic condition?
- a)8.9%
- b)6.2%
- c)0%
- d)7%
Correct answer is option 'D'. Can you explain this answer?
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Superelevation Calculation for a Highway Curve
Superelevation (e) is the banking of the roadway on a curve to counteract the centrifugal force acting on the vehicle. The superelevation of a highway curve can be determined by the following formula:
e = v² / (127R + 3.5)
where e = superelevation in decimal form, v = design speed in km/h, and R = radius of the curve in meters.
Given:
Radius of the curve (R) = 500 m
Design speed (v) = 100 km/h
Mixed traffic condition
Calculation:
e = v² / (127R + 3.5)
e = (100)² / (127 × 500 + 3.5)
e = 0.07 or 7%
Therefore, the superelevation for a horizontal highway curve of radius 500 m and speed 100 km/h in mixed traffic condition is 7%.
Answer: Option D (7%)
Superelevation (e) is the banking of the roadway on a curve to counteract the centrifugal force acting on the vehicle. The superelevation of a highway curve can be determined by the following formula:
e = v² / (127R + 3.5)
where e = superelevation in decimal form, v = design speed in km/h, and R = radius of the curve in meters.
Given:
Radius of the curve (R) = 500 m
Design speed (v) = 100 km/h
Mixed traffic condition
Calculation:
e = v² / (127R + 3.5)
e = (100)² / (127 × 500 + 3.5)
e = 0.07 or 7%
Therefore, the superelevation for a horizontal highway curve of radius 500 m and speed 100 km/h in mixed traffic condition is 7%.
Answer: Option D (7%)
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What is the superelevation for a horizontal highway curve of radius 500 m and speed 100 km/h in mixed traffic condition?a)8.9%b)6.2%c)0%d)7%Correct answer is option 'D'. Can you explain this answer?
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