A simple horizontal curve has a radius of 500 ft and central angle of 70o. Compute the middle ordinate. a. 328.99 ft b. 90.42 ft c. 103.32 ft d. 370.59 ft
Question
Solution 1
The middle ordinate (M) of a simple curve can be calculated using the formula:
M = R(1 - cos(Δ/2))
where: R is the radius of the curve, and Δ is the central angle of the curve.
Given that R = 500 ft and Δ = 70°, we can substitute these values into the formula:
M = 500(1 - cos(70/2))
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