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A horizontal curve on a road provides
  • a)
    Change in the direction
  • b)
    Change in the gradient of road
  • c)
    Both 1 and 2
  • d)
    None of the above
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A horizontal curve on a road providesa)Change in the directionb)Change...
A horizontal curve provides change in the direction of the center line of a road while a vertical curve on a road provides change in gradient. The circular and transition curves are used as horizontal curves and the parabolic curves are used as vertical curves.
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Most Upvoted Answer
A horizontal curve on a road providesa)Change in the directionb)Change...
Explanation:

A horizontal curve on a road is a curved section of the roadway where the alignment changes to the left or right. The curve is constant and smooth, and it provides a change in the direction of the road. This change in direction is necessary to help drivers navigate the road safely and efficiently.

Importance of horizontal curves:

Horizontal curves are important because they allow drivers to adjust their speed and direction to match the road's alignment. Without horizontal curves, roads would be straight, making it difficult for drivers to navigate them. The curve provides a visual cue to drivers that they need to slow down and adjust their steering to match the road's alignment.

Types of horizontal curves:

There are two types of horizontal curves: simple curves and compound curves. A simple curve is a single curve where the road alignment changes in one direction. A compound curve is a combination of two or more simple curves in opposite directions. Compound curves are used to provide a smooth transition between two different alignments.

Design of horizontal curves:

The design of horizontal curves is based on several factors, including the speed limit, the radius of the curve, and the sight distance. The radius of the curve is the distance from the center of the curve to the edge of the pavement. The sight distance is the distance a driver can see ahead while traveling at a given speed.

Conclusion:

In conclusion, a horizontal curve on a road provides a change in the direction of the road. It is an important element of road design that helps drivers navigate the road safely and efficiently. Proper design and maintenance of horizontal curves are essential for ensuring the safety of drivers and passengers on the road.
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A horizontal curve on a road providesa)Change in the directionb)Change in the gradient of roadc)Both 1 and 2d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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