Capacity_example_time_space

Capacity_example_time_space - Virginia Tech - Air...

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Unformatted text preview: Virginia Tech - Air Transportation Systems Laboratory Runway Capacity Example CEE 5614 Analysis of Air Transportation Systems Dr. Antonio A. Trani Professor Virginia Tech - Air Transportation Systems Laboratory Problem Description • The airport to be studied in this problem is shown in Figure 1 • The airport has two 9,000 foot runways with a configuration shown in the Figure 1 • The airport has an airport surveillance radar (ASR) which tracks aircraft up to 60 miles form the airport site • Tables 1 and 2 show the typical ATC separations at the airport under IMC conditions • Tables 3 and 4 show the separations under VMC conditions • The airport has the following technical parameters: a) in-trail delivery error of 16 seconds, b) departure-arrival separation for both VMC and IMC conditions is 2 nautical miles, c) probability of violation is 5% • Arriving aircraft are “vectored” by ATC to the final approach fix (see Figure) located 7 miles from the runway threshold 2 Virginia Tech - Air Transportation Systems Laboratory Problem Description • The airport has an aircraft fleet mix made up of 10% small, 65% large and 25% heavy wake class aircraft • The characteristics of the aircraft are given in Table 5 • Observed runway occupancy times in the field are: 48, 55, and 62 seconds for small, large and heavy aircraft, respectively • Assume the 3-point runway deceleration calculation method applies to this problem to estimate the time to cross the intersection 3 Virginia Tech - Air Transportation Systems Laboratory • In your analysis assume departing aircraft accelerate on the runway at a constant rate of 2.2 m/s 2 • Assume that ATC controllers release departures on runway 18-36, around 10 seconds after an arriving aircraft crosses the intersection between runways 09L-27R and 18-36 • Arrivals and departures are not airborne at the intersection • For departures on runway 18-36 to occur, it is desired that when the departing aircraft is released from the takeoff position, the next arrival to runway 09L be no less than 2.0 nm from the arrival threshold • This rule is used by ATC controllers to schedule departures on runway 36 4 Problem Description Virginia Tech - Air Transportation Systems Laboratory Problem Description 5 Virginia Tech - Air Transportation Systems Laboratory Problem Description (IFR Separations) 6 Table 1. Minimum arrival-arrival separations under IMC conditions. Values in are nautical miles. Table 2. Minimum departure-departure separations under IMC conditions. Values in are in seconds. Virginia Tech - Air Transportation Systems Laboratory Problem Description (VFR Separations) 7 Table 3. Minimum arrival-arrival separations under VMC conditions. Values in are nautical miles....
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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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Capacity_example_time_space - Virginia Tech - Air...

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