A crest and sag curve connect a 0% west highway segment (left) with a +1.80% east highway segment (right). The 0% west highway segment is at a higher elevation than the start of the +1.80% east highway segment. The two vertical curves connect with each other (PVT = PVCg) and share a 2.26 (use -2.2% for calculation) common grade. If the design speed of the curves is 60 mi/h. What is the elevation difference (ft, use format 0.00, range is +/-0.02) between the two road segments?

A crest and sag curve connect a 0% west highway segment (left) with a +1.80% east highway segment (right). The 0% west highway segment is at a higher elevation than the start of the +1.80% east highway segment. The two vertical curves connect with each other (PVT = PVCg) and share a 2.26 (use -2.2% for calculation) common grade. If the design speed of the curves is 60 mi/h. What is the elevation difference (ft, use format 0.00, range is +/-0.02) between the two road segments?

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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Question

A crest and sag curve connect a 0% west highway segment (left) with a +1.80% east highway segment (right). The 0% west highway segment is at a higher elevation
than the start of the +1.80% east highway segment. The two vertical curves connect with each other (PVŤ = PVCG) and share a 2.2% (use -2.2% for calculation)
common grade. If the design speed of the curves is 60 mi/h. What
the elevation difference (ft, use format 0.00, range is +/-0.02) between the two road segments?

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