14.5. Summary

Try these first

1. 1.

   What is the purpose of super-elevation in road design?

   Hint

   Think about the forces acting on vehicles in motion.

2. 2.

   Define design speed in the context of road design.

   Hint

   Consider what influences road geometry.

3. 3.

   What is the primary role of super-elevation in road design?

   • To increase vehicle speed
   • To reduce centrifugal force
   • To establish road aesthetics

   Hint

   Think about forces at play during cornering.

4. 4.

   True or False: Higher design speeds require greater super-elevation.

   • True
   • False

   Hint

   Recall your understanding of how speed affects road design.

5. 5.

   Design a theoretical curve for a highway with a design speed of 100 km/h. Consider all factors that need to be included to ensure safety and efficiency.

   Hint

   Use the formulas we discussed about super-elevation.

6. 6.

   Evaluate a case where a vehicle experienced an accident on a curve. Discuss factors that could have been improved in road design to prevent such incidents.

   Hint

   Consider what forces were likely at play during the accident.