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2 cards from this section. Quick, good the night before a test.
Define chainage in your own words.
Think about how distances are measured in road construction.
What is the formula for calculating the length of a circular curve?
Consider what each of the letters represents.
What is the primary purpose of calculating chainage?
Think about how this helps in construction.
True or False: The deflection angle is not important in reverse curves.
Consider the implications of a poorly defined curve.
How would you calculate the radius required for a reverse curve if given the distance between two tangents is 60m and a vertical separation of 12m?
Use tangent relationships to establish the correct formula.
Calculate the offsets for different chords along a reverse curve with a radius of 700m over an angle of 90°.
Consider the lengths of chords effectively during calculations.
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