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Flexible Design of Airport System Using Real Options Analysis - MIT

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12/14/2007<br />

1.231 Planning and <strong>Design</strong> <strong>of</strong> <strong>Airport</strong> <strong>System</strong> Dai Ohama<br />

5. Conclusion<br />

There are a lot <strong>of</strong> facilities that are not designed optimally in airport systems. The<br />

master plan <strong>of</strong> those designs does not anticipate and consider future risks and uncertainties.<br />

Thus, inflexible design cannot manage risks and uncertainties, and it leads to losses. In<br />

order to solve this problem, it is essential to incorporate flexibility into design. As<br />

demonstrated in the case study in this paper, the real option analysis is the useful way to<br />

recognize uncertainty and incorporate flexibility into design. The case study demonstrated<br />

that flexibility can enhance the expected value <strong>of</strong> the project, and reduce the possible losses<br />

by using the option to expand. Also it can demonstrate that flexibility can keep the initial<br />

cost lower than that <strong>of</strong> the current design. Therefore, at the initial construction phase, only<br />

runway should be constructed and if the demand <strong>of</strong> the number <strong>of</strong> passenger exceeds the<br />

capacity after 10 years operation, a parallel taxiway and a south edge should be constructed.<br />

Furthermore, real options analysis using Monte Calro Simulation is very useful in that it just<br />

focuses on the ENPV <strong>of</strong> options and it does not require any financial skills unlike typical<br />

financial options approaches such as Black-Sholes option pricing model and binomial lattice<br />

model. Thus, those who are in charge <strong>of</strong> design can relatively easily use this method.<br />

<strong>Flexible</strong> design thus enables projects to be optimized and reduce excessiveness and losses in<br />

airport systems.<br />

Term Project: <strong>Flexible</strong> <strong>Design</strong> <strong>of</strong> <strong>Airport</strong> <strong>System</strong> Page 21 <strong>of</strong> 22

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