A crest and sag curve connect a 0% road segment with a +2% road segment. The two curves connect with each other (PVI=PVC) and share a 3% common grade. If the design speed of the curves is 45 mi/h, what is the elevation difference between the two road segments?

A crest and sag curve connect a 0% road segment with a +2% road segment. The two curves connect with each other (PVI=PVC) and share a 3% common grade. If the design speed of the curves is 45 mi/h, what is the elevation difference 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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Intersection Design

An intersection is a location where two or more roads or railways meet or join. The traffic movement is controlled at the intersection that depends on its design and type. It governs the operation, efficiency, speed, capacity, and safety of the highways, airways, and railways. The movement of the pedestrian causes hazards and delays at the intersection.

Question

A crest and sag curve connect a 0% road segment with a
+2% road segment. The two curves connect with each
other (PVI=PVC) and share a 3% common grade. If the
design speed of the curves is 45 mi/h, what is the elevation
difference between the two road segments?

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