Three transportation improvement plans have been
proposed for heavily populated and congested city.
Alternative I – upgrading of congested signalised
intersections into full grade separated intersections at an initial
construction cost of $180 million and a salvage value of $22
million. Annual operation and maintenance costs will be $230,000
per year. Major maintenance in year 20 at $5 million and in year 40
at $8 million.
Alternative II - upgrading of bus service to BRT
system at an initial cost of $155 million and a salvage value of $5
million. Annual operation and maintenance costs will be $850,000
per year. Major maintenance in year 15 at $10 million, year 30 at
$15 million, and year 45 at $22 million will be needed.
Alternative III - introduction of new LRT system with
initial cost of $162 million and a salvage value of $20 million.
Annual operation and maintenance costs will be $680,000 per year,
and in year 25 a rehabilitation is required which will cost $30
million.
Draw the Cash Flow Diagram for all alternatives.
Determine which alternative is preferred based on economic criteria
if the analysis period is 50 years and the annual interest rate is
4%.
Evaluate the alternatives using the present worth of
cost (PWC), equivalent annual cost (EUAC), and benefit-cost ratio
(BCR) methods.
In: Civil Engineering
Please read and react to the current event article in the "Health and Wellness of Workers in Industry" Below. Your response should be at least 6 sentences. and address the key points of this article.
OSHA again cites Tip Top Roofing for failing to provide workers fall protection
Date investigation initiated and what prompted inspection:On Nov. 4, 2014, the U.S. Department of Labor’s Occupational Safety and Health Administration’s Aurora Area Office initiated an inspection of roofing contractor Tip Top Roofing & Construction Inc. after receiving a complaint alleging workers were exposed to fall hazards at a residential jobsite in DeKalb.
Investigation findings:
OSHA issued two willful and four serious violations for exposing workers to falls and other hazards while re-roofing an existing residence
Two willful violations cite the company for:
Exposing workers to fall hazards of about 22 feet because the company failed to provide fall protection
Failing to extend a ladder at least three feet above the landing to provide safe roof access Four serious violations involve allowing employees to perform roofing work in close proximity to energized power lines, lack of personal protective equipment and allowing employees to carry loads of plywood and other roofing materials while climbing ladders.
The company has been cited multiple times since 2008 for fall safety violations. The most recent citations were issued in 2013.
Quote:
“A roofer can fall to his death in mere seconds. By refusing to provide fall protection to its workers, Tip Top Roofing and Construction is gambling with workers’ lives and livelihood —and that is unacceptable,” said Jacob Scott, OSHA’s Area Director in Aurora. “With everything we know about how to work safely, it’s troubling to see how many workers are still injured every year in the construction trades, and particularly from falls.”
Each year 38,000 construction injuries are reported. Fatal falls, slips, or trips took the lives of 699 workers in 2013. Falls to a lower level accounted for 574 of those fatalities. About half of the 1.6 million Americans employed in the construction industry, work in residential construction.
In: Operations Management
In: Biology
A basketball player, standing near the basket to grab a rebound, jumps 74.5cm vertically, how much time does the player spend in the top 15.3cm of his jump? How much time does he spend in the bottom 15.3cm of his jump?
In: Physics
Can someone explain using physics how the twin towers collapse from the bottom from planes that hit near top of tower? There are many conspiracy theories saying it collapsed from a demolition. Is it true? What is your physics point of view?
In: Physics
Based on your textbook material and the discussions/work online, give us your assessment of how the economy is doing today and what are the expectations for the near future. Use data and add links to articles you have used.
Limit = 300 words
In: Economics
Why is it difficult to determine reference prices? Consider a new pizza restaurant opening near your campus. What challenges would the restaurant’s marketers encounter as they attempt to determine their customer’s reference prices? How could they find this information?
It is a marketing question
In: Operations Management
If you were conducting the wire and compass experiment (Part A) near the equator instead of Oregon, would it be necessary to use more or less wire current to cause the compass needle to deflect? Hint: Consider both components of Bnet. Explain your reasoning.
In: Physics
A ball is thrown upward with initial velocity v0 = 15.0 m/s at an angle of 30° with the horizontal. The thrower stands near the top of a Jong hill which slopes downward at an angle of 20°. Determine how far down the slope the ball strikes.
In: Physics
is it cheaper to pay $2000 per month for campus housing or to purchase a house near campus for $100000 assuming that you are eligible for a 4% APR 30 year fixed rate HUD mortgage loan with 3 % down payment? Show your work.
In: Finance