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2 cards from this section. Quick, good the night before a test.
What is centrifugal force?
Think about the direction of forces when a vehicle is turning.
Define super-elevation.
What happens to the outer edge of the road on a curve?
What does centrifugal force depend on?
Consider the forces acting on the vehicle when going through a curve.
True or False: Super-elevation increases the risk of skidding.
Think about the purpose of super-elevation on curves.
A highway curve has a radius of 80 meters. What is the maximum speed a vehicle can safely travel without skidding if the coefficient of friction is 0.15?
Use the friction and gravity to calculate the maximum allowable speed.
Design a road curve for a speed of 60 km/h with a radius of 50 m. Calculate the required super-elevation.
Ensure to convert units properly and remember to account for the friction.
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