Types of curves

This presentation will fully make you understand the types of curves which are used in the highways engineering.

1. CURVES

2. Curve A line which is not straight with no sharp edges is called a curve. It is a smoothly flowing line.

3. Types of Curves Horizontal Curve Vertical Curve

4. Horizontal Curve A horizontal curve provides a transition between two tangent strips of roadway, allowing a vehicle to negotiate a turn at a gradual rate rather than a sharp cut.

5. Types of Horizontal Curves Simple Curve Compound Curve Reverse Curve Transition Curve

6. SIMPLE CURVE A simple arc provided in the road to impose a curve between the two straight lines.

7. COMPOUND CURVE Combination of two simple curves combined together to curve in the same direction.

8. REVERSE CURVE Combination of two simple curves combined together to curve in the opposite direction.

9. TRANSITION CURVE A curve of constantly changing radius, used to connect a circular arc to a straight line.

10. Vertical Curve A vertical curve provides a transition between two sloped roadways, allowing a vehicle to negotiate the elevation rate change at a gradual rate rather than a sharp cut.

11. Types of Vertical Curve Sag Curve Crest Curve

12. SAG CURVE Sag Curves are those which change the alignment of the road from uphill to downhill.

13. CREST CURVE Crest Curves are those which change the alignment of the road from downhill to uphill.

14. THE END

15. THANK YOU