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2 cards from this section. Quick, good the night before a test.
What is a valley curve?
Think about how gradients come together.
Why is headlight sight distance important?
What do we rely on at night while driving?
What is the main purpose of designing valley curves?
Think about vehicle comfort and safety.
True or False: Adequate headlight sight distance is only important during the day.
When do we use headlights the most?
A valley curve needs designing for a road with a steep descent. Calculate the potential safety risks if the headlight sight distance is not adequate.
Evaluate the dynamics of the vehicle as it encounters the curve.
Design a valley curve ensuring minimal discomfort for passengers. What parameters will you consider?
Think about how changes in slope affect vehicle dynamics.
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