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2 cards from this section. Quick, good the night before a test.
What is a summit curve?
Think about how roads connect different slopes.
Name one type of curve used in summit curves.
It's a curve shape that resembles a parabola.
What is a summit curve?
Recall the definition of summit curves.
True or False: Parabolic curves are less comfortable to drive on than circular curves.
Consider which curve shape offers a smoother transition.
Given a road design requiring a summit curve with an SSD of 150m, calculate the necessary length if the upward gradient is +2% and the downward gradient is -2%.
Focus on using the parabola formula for SSD calculations.
Critique a poorly designed summit curve encountered in your community. Discuss safety risks and potential improvements.
Think about the visibility and comfort issues during drives.
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