2.3.1. Various parts of a curve

Try these first

1. 1.

   Define tangent points in the context of curves.

   Hint

   Think about the connection points of straight lines and curves.

2. 2.

   What is the significance of the intersection point?

   Hint

   Recall where tangents meet in the design.

3. 3.

   What is the intersection point in the context of curves?

   • The curve's highest point
   • Where tangents meet
   • The distance along the curve

   Hint

   Remember the role of two tangent lines.

4. 4.

   True or False: A left-handed curve deflects to the left side of the progress of a survey.

   • True
   • False

   Hint

   Think of travel direction.

5. 5.

   A curve has a radius of 200 meters. Calculate the tangent length if the angle of intersection is 30 degrees.

   Hint

   Remember to calculate the tangent length using an angle halved.

6. 6.

   If two curves with radii 100m and 150m are connected through a common tangent, what impacts would this have on vehicle speed?

   Hint

   Consider how vehicles navigate curves under speed limits.