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3 cards from this section. Quick, good the night before a test.
What is super-elevation?
Think of how roads are tilted at curves.
Define transition curve.
Consider why smooth transitions are needed.
What is super-elevation primarily used for?
Reflect on the physical forces acting on a vehicle in motion.
A transition curve is defined as:
Think about why curves are designed to connect smoothly.
A transition curve has a radius of 80 m. Compute the required length for a vehicle to transition safely at a speed of 15 m/sec. Assume a super-elevation rate of 1 in 150.
Plug in your values for n, b, v, g, and R to find L.
Discuss how inadequate super-elevation could affect different types of vehicles differently (e.g., cars vs. trucks).
Use examples from vehicle dynamics to illustrate your points.
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