2.2.2. Compound curves

Try these first

1. 1.

   Define a compound curve.

   Hint

   Think about curves that combine and bend together.

2. 2.

   What is a tangent in relation to a curve?

   Hint

   Visualize how a straight line can interact with a curve.

3. 3.

   What defines a compound curve?

   • One simple curve
   • Two or more simple curves
   • A straight line

   Hint

   Think of how curves connect and relate to each other.

4. 4.

   True or False: Compound curves can have curves bending in opposite directions.

   • True
   • False

   Hint

   Consider the meaning of ‘compound’.

5. 5.

   You are tasked with designing a road that requires a compound curve with radii of 20 m and 30 m. Determine the necessary tangents and the design approach.

   Hint

   Consider how vehicles interact with the curve.

6. 6.

   Analyze a scenario where no room is available for a straight road segment between two compound curves. What challenges might arise, and how would you address them?

   Hint

   'Transition Curves' can ease changes from straight to curved paths.