Question

In: Economics

A life-cycle cost analysis (LCCA) is being performed for a project. Two competing surface types are...

A life-cycle cost analysis (LCCA) is being performed for a project. Two competing surface types are being evaluated. For surfacing type 1, the initial construction will cost $1 million and have an associated user cost of $220,000. Three additional rehabilitation strategies, at a cost of $250,000 each, will be incurred in years 10, 20 and 30. Associated user cost in years 10, 20 and 30 will be $220,000, $330,000 and $440,000, respectively. For surfacing type 2, the initial construction will cost $1.2 million and have an associated user cost of $240,000. Two additional rehabilitation strategies, at a cost of $300,000 each, will be incurred in years 15 and 30. Associated user cost in years 15 and 30 will be $220,000 and $330,000, respectively. Assume a salvage value equal to the 10% of the initial construction cost. If LCCA results are the only factors that influence the ultimate selection of this pavement surfacing type, which type would you like to select for a 3% discount rate and over a 35-year analysis period?

Solutions

Expert Solution

Well, let us first tablulize the entire data we have as below (all figures, except years, in $):

Surfacing Type 1
Year Initial cost Associated user cost Additional rehabilitation Salvage Value
0 1000000 220000
10 220000 250000
20 330000 250000
30 440000 250000
35 100000


And

Surfacing Type 2
Year Initial cost Associated user cost Additional rehabilitation Salvage Value
0 1200000 240000
15 220000 300000
30 330000 300000
35 120000


Now, let us calculate the Net Cash Outflow (mentioned at E column below) and also compute the present value of the future net cash outflow. For this we have used the following formula:

Present value = Net cash outflow * (1/(1.03)t)
(here t stands for number of years)

When we carry out the above, we get the following tables:

Surfacing Type 1
Year Initial cost
A
Associated user cost
B
Additional rehabilitation
C
Salvage Value
D
Net Cash outflow
E=A+B+C-D
Present Value @ 3% p.a.
0 1000000 220000 1220000 1220000
10 220000 250000 470000 349724
20 330000 250000 580000 321132
30 440000 250000 690000 284271
35 100000 (100000) (35538)
Net Present value of the cost to be incurred at the initial stage and later across 35 years 2139589


Surfacing Type 2
Year Initial cost
A
Associated user cost
B
Additional rehabilitation
C
Salvage Value
D
Net Cash outflow
E=A+B+C-D
Present Value @ 3% p.a.
0 1200000 240000 1440000 1440000
15 220000 300000 520000 333768
30 330000 300000 630000 259552
35 120000 (120000) (42646)
Net Present value of the cost to be incurred at the initial stage and later across 35 years 1990674


Conclusion: The discounted cost of Surfacing Type 2 is less than that of Surfacing Type 1. Type 2 is cost efficient by a whopping worth of $148915, hence we must go for Type 2.


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