a6_cee4674_2009_sol

# A6_cee4674_2009_sol - CEE 4674 Airport Planning and Design Spring 2009 Assignment 6 Solution Date Due April/3/2007 Instructor Trani Problem 1 Use

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CEE 4674 A6 Trani Page 1 of 9 CEE 4674: Airport Planning and Design Spring 2009 Assignment 6: Solution Date Due: April/3/2007 Instructor: Trani Problem 1 Use the FAA Terminal Area Forecast (http://aspm.faa.gov/main/taf.asp) to explain the growth of passenger enplanements and flight operations at the following airports: 1) ATL, 2) IAD and 3) ROA. a) Plot the historical number of total operations as a function of time. b) Calculate the growth of flight operations at every airport for the past 30 years (since 1976). Figure 1. Atlanta International Airport Enplanements. Second Order Trend Line Shown. Table 1. Average Growth in Flight Operations for Three Airports. Airport Operations (1976) Operations (2006) Growth Rate (%) [Average (%)] Atlanta 473876 928963 96% [3.2%] Dulles 183516 445095 142% [4.7%] Roanoke 119770 86317 -28% -0.9% Problem 2 Use the FAA Terminal Area Forecast (http://aspm.faa.gov/main/taf.asp) to find the best Logistic curve regression for the number of enplanements at IAD airport. This analysis requires use of Excel Solver.

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CEE 4674 A6 Trani Page 2 of 9 a. Plot the historical number of total operations as a function of time. b. Calculate the values of coefficients a and b in the logistic model. The airport is expanding and building better passenger terminal infrastructure. The airport authority predicts that after all the Aero Train and terminal improvements the airport should be able to handle up to 45 million enplanements per year in the future. Two model solutions are shown below. In Figures 2 and 3 we show a solution with a limiting capacity (value of k in the logistic model) of 35 million enplanements. Figures 4 and 5 illustrate the solution with k = 45 million enplanements. Figure 2. IAD Logistic Model with Limited Capacity at 35 Million Enplanements. Figure 3. IAD Logistic Model Parameters. 35 Million Passengers Limiting Capacity.
CEE 4674 A6 Trani Page 3 of 9 Figure 4. IAD Logistic Model with Limited Capacity at 45 Million Enplanements.

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## This note was uploaded on 01/07/2012 for the course CEE 4674 taught by Professor Staff during the Fall '11 term at Virginia Tech.

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A6_cee4674_2009_sol - CEE 4674 Airport Planning and Design Spring 2009 Assignment 6 Solution Date Due April/3/2007 Instructor Trani Problem 1 Use

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