2.5. Reverse Curves

Try these first

1. 1.

   What is a reverse curve?

   Hint

   Think about where you might use a road that bends back on itself.

2. 2.

   Name one advantage of using reverse curves.

   Hint

   Consider how roads can cross over when they can’t go straight.

3. 3.

   What is a reverse curve?

   • A straight line
   • A curve with an internal angle
   • Two circular arcs with a tangent

   Hint

   Think about the shape of a snake!

4. 4.

   Are reverse curves advisable for high-speed traffic?

   • True
   • False

   Hint

   Consider what happens at a sharp turn.

5. 5.

   Create a conceptual design for a road involving reverse curves in a mountainous area. What elements will factor into your calculations?

   Hint

   Reflect on how vehicle dynamics change with speed on turns.

6. 6.

   Evaluate a case where a reverse curve caused multiple accidents due to improper design. What steps would you implement to rectify this situation?

   Hint

   Think about what safety measures can help mitigate risk at the PRC.