A roadway has a design speed of 50 mi/h, and at station 105 + 00 a +3.0% grade roadway ection ends and at station 125 + 00 a +2.0% grade roadway section begins. The +3.0% grade section of highway (at station 105 + 00) is at a higher elevation than the +2.0% grade section of highway (at station 125 + 00). If a -4%constant-grade section is used to connect the crest and sag vertical curves that are needed to link the +3.0 and+2.0% grade sections, what is the elevation difference between stations 105 + 00 and 125 + 00? (The entire alignment, crest and sag curves, and constant-grade section must fit between stations 105 + 00 and 125 +00.)

A roadway has a design speed of 50 mi/h, and at station 105 + 00 a +3.0% grade roadway ection ends and at station 125 + 00 a +2.0% grade roadway section begins. The +3.0% grade section of highway (at station 105 + 00) is at a higher elevation than the +2.0% grade section of highway (at station 125 + 00). If a -4%constant-grade section is used to connect the crest and sag vertical curves that are needed to link the +3.0 and+2.0% grade sections, what is the elevation difference between stations 105 + 00 and 125 + 00? (The entire alignment, crest and sag curves, and constant-grade section must fit between stations 105 + 00 and 125 +00.)

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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Concept explainers

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 roadway has a design speed of 50 mi/h, and at station 105 + 00 a +3.0% grade roadway
ection ends and at station 125 + 00 a+2.0% grade roadway section begins. The +3.0% grade
section of highway (at station 105 + 00) is at a higher elevation than the +2.0% grade section
of highway (at station 125 + 00). If a -4%constant-grade section is used to connect the crest
and sag vertical curves that are needed to link the +3.0 and+2.0% grade sections, what is
the elevation difference between stations 105 + 00 and 125 + 00? (The entire alignment, crest
and sag curves, and constant-grade section must fit between stations 105 + 00 and 125 +00.)

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