Purdue University School of Civil Engineering CE 361 Introduction to Transportation Engineering Homework 11
AIRPORT FORECASTS, CAPACITY, AND DELAY
Posted: Mon. 20 November 2006Due: Fri. 1 December 2006
CE361 HW11 Airports - 2 - Fall 2006
Dear Consultant(s):
Yvimof Airport (YVI) is becoming a popular destination for business and leisure air travel. Please demonstrate your facility with basic airport analysis methods by completing and submitting the exercises below.
Note: You must submit this HW as a member of a group of at least two and no more than four CE361 students. (This is a good HW to have at least one other student check your work or, better, solve the problems as a team.) As usual, the top sheet of the material submitted must be signed by each group member.
1. Forecasting air travel using the FAA "Share Model". A spreadsheet file “yvi06.xls” with the format of FTE Table 11.6 will be emailed to you. It will contain historical data for YVI, along with FAA and local forecasts.
A. Update the historical entries for years 2000-2005 in a copy of the file “yvi06.xls”. Go to http://www.faa.gov/ and select “Data & Statistics”.
i. (6 points) Select FAA Aerospace Forecasts FY 2006-2017. Using Table 5, update the entries for System Revenue Passenger Replacements for years 2000-2005 in your copy of the file “yvi06.xls”.
ii. (9 points) At “More » Aviation Forecasts”, find FAA Long-Range Aerospace Forecasts. In Table 2, find the latest FAA forecasts of Passenger Enplanements for Years 2010, 2020, and 2030. Explain how you decided which forecast values to enter into your copy of the file “yvi06.xls”. Hints: Check the 2005 “forecast” in Table 2 against your findings in Part i and note the second footnote for the table.
B. (20 points) Forecast the total operations and total passenger traffic at Yvimof Airport for the years 2010, 2020, and 2030. Because your updates in Part A may not be correct, use the values sent to you in file “yvi06.xls”. Attach a hardcopy of your completed spreadsheet to your HW. Notes: (1) Because Yvimof is a smaller airport, use four digits after the decimal point for YVI’s stature. (2) Your choice of Planning Factors may differ from other analysts', so you must provide a clear explanation for each of the values you chose and show the values clearly.
2. Runway configurations and capacity. For a certain future year, YVI’s operations are expected to be 30% Class A, 38% Class B, 25% Class C, and 7% Class D aircraft.
A. (10 points) Calculate the Mix Index for YVI in that year. If YVI’s runway configuration is No. 1, what will YVI’s Hourly Capacity be under VFR and IFR conditions? What will YVI’s Annual Service Volume be?
B. (10 points) If YVI were to have 90,000 operations in that year, calculate YVI’s Delay Factor for that year. Use Fig 11.24 to estimate average aircraft delay.
3. Runway length and takeoff weight. YVI Airport lies at elevation 1850 ft. Its temperature in the summer seldom exceeds 90oF. An airline has expressed an interest in serving YVI with Boeing 727-200 aircraft. The airport management wants to know if YVI’s 6500-foot runway is long enough for a 727. If not, how long must the runway be? Note that one end of the runway is 59 ft higher than the other end.
A. (5 points) What is the MATOW for a 727 at 1850 ft and 90oF? What is the Reference Factor for a 727 at 1850 ft and 90oF?
B. (10 points) How long must the runway be to permit the MATOW found in Part A? What is the MATOW for the current runway at YVI? Show how you found these values.
C. (15 points) If the 727 will be offering service to an airport 950 miles away, how many passengers can be carried, given the current runway? Show the steps in your analysis.