Question: A freeway exit ramp has a single 1 2 foot lane and consists entirely of a curve with an interior angle of 9 0 degrees

A freeway exit ramp has a single 12 foot lane and consists entirely of a curve with an interior angle of 90 degrees and L=628 feet. If the distance cleared of obstacles is 19.4 feet from the centerline of the lane, what design speed was used? (round to the nearest 5 MPH)

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