Horizontal Curve Problem- A field measurement of an existing two-lane curved roadway (horizontal curve) indicates that...

Horizontal Curve Problem- A field measurement of an existing two-lane curved roadway (horizontal curve) indicates that the chord length (C) for the inside radius of the road (roadway edge line) is 312.5 ft and the distance from the middle of the chord to the roadway edge line 25 feet. The road has 28 feet of travel way, 14 feet for each lane. Respond to the next three questions about this horizontal curve.

1. Radius for the horizontal curve to the center of the road most nearly is: A. 515ft B. 494ft. C. 501ft. D. 508ft.

2. The sight distance fir the roadway is most nearly: A. 362.5ft. B.355.8ft. C. 365.0ft. D. 360.5ft.

3. Safe operating speed for this section of the Road most nearly is: A.50MPH. B.35MPH. C.40MPH. D.45MPH

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