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Tabulate station elevations for an equal- tangent parabolic curve for the data given and check the table by second differences when working in English units. 25.4* A -2.50% grade meets a +1.75% grade at station 44+25 and elevation 3386.96 ft, 400-ft curve, stakeout at half stations. 1.75 +2.50 r = = 1.0625 4 BVC Station = 42+25.00 BVC Elevation = 3391.96

Tabulate station elevations for an equal- tangent parabolic curve for the data given and check the table by second differences when working in English units. 25.4* A -2.50% grade meets a +1.75% grade at station 44+25 and elevation 3386.96 ft, 400-ft curve, stakeout at half stations. 1.75 +2.50 r = = 1.0625 4 BVC Station = 42+25.00 BVC Elevation = 3391.96

Traffic and Highway Engineering
Traffic and Highway Engineering
5th Edition
ISBN:9781305156241
Author:Garber, Nicholas J.
Publisher:Garber, Nicholas J.
Chapter15: Geometric Design Of Highway Facilities
Section: Chapter Questions
Problem 7P
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Tabulate station elevations for an equal- tangent parabolic curve for the data given and check the table by second differences when working in English units. 25.4* A -2.50% grade meets a +1.75% grade at station 44+25 and elevation 3386.96 ft, 400-ft curve, stakeout at half stations. 1.75 +2.50 r = = 1.0625 4 BVC Station = 42+25.00 BVC Elevation = 3391.96
Transcribed Image Text:Tabulate station elevations for an equal- tangent parabolic curve for the data given and check the table by second differences when working in English units. 25.4* A -2.50% grade meets a +1.75% grade at station 44+25 and elevation 3386.96 ft, 400-ft curve, stakeout at half stations. 1.75 +2.50 r = = 1.0625 4 BVC Station = 42+25.00 BVC Elevation = 3391.96
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