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2 cards from this section. Quick, good the night before a test.
What is a summit curve?
Think about how hills transition in roads.
Define sight distance.
Consider how far ahead you need to see while driving safely.
What is a summit curve?
Think about how a road might change when going uphill.
True or False: The driver's eye height impacts sight distance calculations.
Consider how tall objects can block your view.
A road has a driver's eye height of 1.2 meters and an obstruction of 0.3 meters. Calculate the length of the summit curve if the sight distance needed is 120 meters.
Refer to the relationships established in case 'a' for calculation.
Given two gradients, n1 = +5% and n2 = -3%, derive the summit curve's length when the sight distance is 150 meters.
Focus on understanding how to apply the equations derived from the section.
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