The attainment of super elevation by rotation of pavement about the inner edge of the pavement
A. is preferable in steep terrain
B. results in balancing the earthwork
C. avoids the drainage problem in flat terrain
D. does not change the vertical alignment of road
Answer: Option C
This Question Belongs to Civil Engineering >> Highway Engineering
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Highway facilities are designed for
A. annual average hourly volume
B. annual average daily traffic
C. thirtieth highest hourly volume
D. peak hourly volume of the year
The provision of traffic signals at intersections
A. reduces right angled and rear end collisions
B. increases right angled and rear end collisions
C. reduces right angled collisions but may increase rear end collisions
D. reduces rear end collisions but may increase right angled collisions
In CBR test the value of CBR is calculated at
A. 2.5 mm penetration only
B. 5.0 mm penetration only
C. 7.5 mm penetration only
D. both 2.5 mm and 5.0 mm penetrations
If aggregate impact value is 20 to 30 percent, then it is classified as
A. exceptionally strong
B. strong
C. satisfactory for road surfacing
D. unsuitable for road surfacing
In flat terrain, the conventional method of achieving superelevation by raising the outer edge of the pavement results in a drainage problem. The raised outer edge of the pavement obstructs the flow of water, leading to the accumulation of water on the pavement, causing skidding and hydroplaning. Rotation of pavement avoids this problem by achieving superelevation without raising the outer edge of the pavement.