2.67. A circular curve of 610 m radius deflects through an angle of 40°30'...

Try these first

1. 1.

   What is the deflection angle of the circular curve described?

   Hint

   Look at the main description.

2. 2.

   How long are the transition curves being used?

   Hint

   Identify the length from the initial passage.

3. 3.

   What is the revised radius after adjustments?

   • 610 m
   • 590 m
   • 550 m

   Hint

   Reflect on the adjustments made in the calculations.

4. 4.

   True or False: The deflection angle of the curve is 40°30'.

   • True
   • False

   Hint

   Check the detail in the description for confirmation.

5. 5.

   If the initial angle of deflection were doubled, what would be the impact on the radius adjustments you calculated? Provide a scenario-based answer.

   Hint

   Consider how curvature relates to radius and transitions.

6. 6.

   Analyze a situation where the deviation shifts to 0.8 m instead of 0.46 m. Discuss the implications on the radius and track length.

   Hint

   Reflect on how changes in deviation impact road design.