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You have designed a vertical crest curve which joins a +3% grade and a -4% grade. The design speed is 60 mph and you have determined the curve to be 1100 ft long. Now, you need to determine the layout of the curve when the BVC is located at station 12+50 ft and has an elevation of 825 ft.

You have designed a vertical crest curve which joins a +3% grade and a -4% grade. The design speed is 60 mph and you have determined the curve to be 1100 ft long. Now, you need to determine the layout of the curve when the BVC is located at station 12+50 ft and has an elevation of 825 ft.

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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You have designed a vertical crest curve which joins a +3% grade and a -4% grade. The design speed is 60 mph and you have determined the curve to be 1100 ft long. Now, you need to determine the layout of the curve when the BVC is located at station 12+50 ft and has an elevation of 825 ft. 17. What is the stationing (ft) of the PVI? 18. What is the elevation (ft) of the PVI? 19. What is the stationing (ft) of the EVC? 20. What is the elevation (ft) of the EVC? 21. What is the vertical distance (ft) between the PVI and the road surface? 22. What is the elevation (ft) of the road surface at the same stationing as the PVI? 23. What is the elevation (ft) of the road surface at station 14+00? 24. What is the stationing (ft) of the high point of the road? 25. What is the elevation (ft) of the high point of the road?
Transcribed Image Text:You have designed a vertical crest curve which joins a +3% grade and a -4% grade. The design speed is 60 mph and you have determined the curve to be 1100 ft long. Now, you need to determine the layout of the curve when the BVC is located at station 12+50 ft and has an elevation of 825 ft. 17. What is the stationing (ft) of the PVI? 18. What is the elevation (ft) of the PVI? 19. What is the stationing (ft) of the EVC? 20. What is the elevation (ft) of the EVC? 21. What is the vertical distance (ft) between the PVI and the road surface? 22. What is the elevation (ft) of the road surface at the same stationing as the PVI? 23. What is the elevation (ft) of the road surface at station 14+00? 24. What is the stationing (ft) of the high point of the road? 25. What is the elevation (ft) of the high point of the road?
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