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Engineering
Civil Engineering
A project consists of replacing the track on an existing railroad line, involving 3,000 feet oftrack. The old track can be removed at a rate of 70 feet per hour. The old railroad ties can beremoved at a rate of 200 feet (measured along the track) per hour. The new ties can be installedat a rate of 25 feet per hour and the replacement track can be installed at a rate of 40 feet perhour. Show this operation on a linear schedule. Assume that the minimum float for an activity atany location is one day

A project consists of replacing the track on an existing railroad line, involving 3,000 feet oftrack. The old track can be removed at a rate of 70 feet per hour. The old railroad ties can beremoved at a rate of 200 feet (measured along the track) per hour. The new ties can be installedat a rate of 25 feet per hour and the replacement track can be installed at a rate of 40 feet perhour. Show this operation on a linear schedule. Assume that the minimum float for an activity atany location is one day

Fundamentals Of Construction Estimating
Fundamentals Of Construction Estimating
4th Edition
ISBN:9781337399395
Author:Pratt, David J.
Publisher:Pratt, David J.
Chapter10: Pricing Excavation And Backfill
Section: Chapter Questions
Problem 7RQ
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A project consists of replacing the track on an existing railroad line, involving 3,000 feet of
track. The old track can be removed at a rate of 70 feet per hour. The old railroad ties can be
removed at a rate of 200 feet (measured along the track) per hour. The new ties can be installed
at a rate of 25 feet per hour and the replacement track can be installed at a rate of 40 feet per
hour. Show this operation on a linear schedule. Assume that the minimum float for an activity at
any location is one day 

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