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NASA STI Program . . . in Profile

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ministration 

esearch Center

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mber 2012

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Research Ce

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2

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Available from: 

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Trade names and trademarks are used in this report for identification only. Their usage does not constitute 

an official endorsement, either expressed or implied, by the National Aeronautics and Space 

Administration. 
 3

Contents 

Contents 

List of Figures  

Acronyms 

Abstract  

Introduction 7 

1.1 Experimental Phases 7 

1.2 Software Tools 8 

1.3 The Intelligent Arrival Scheduler 8 

1.4 Airport Selection 8 

2 Phase 1 – Terminal Airspace 9 

2.1 Arrival Route Configuration 9 

2.2 Mathematical Analysis of the Terminal Airspace 10 

2.2.1 Standard Descent Arrival Route Analysis 10 

2.2.2 Continuous Descent Arrival (CDA) Route Analysis 13 

2.2.3 Multi-Profile Arrival Route Analysis 15 

2.3 Phase 1 ACES Simulation Runs 16 

2.3.1 Configuration Files 16 

2.3.2 Simulation Scenarios and Data 17 

2.3.3 Standard Descent Arrival Route Analysis 17 

2.3.4 Results 17 

3 Phase 2 – En Route Airspace 18 

3.1 Mathematical Analysis of the En Route Airspace 18 


4 Phase 3 - Combined En Route and Terminal 20 

4.1 Role of the Arrival Scheduler Planning Horizon 20 

4.2 ACES Simulation Runs 20 

4.2.1 Software Description 20 

4.2.2 Arrival Routes 21 

4.2.3 Simulation Results 22 

4.3 Validation of Simulation Results 24 

4.3.1 Parameter Selection for the Validation Test 24 

4.3.2 Results 25 

4.4 Determination of the Maximum Useful Planning Horizon Radius 27 

4.4.1 Results 28 

4.4.2 Results Discussion 31 

5 Future Work 32 

6 References 33 

List of Figures 

	

				
	

	
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Figure 15: Arrival Throughput with Planning Horizon Size for Maximum Useful Size Test


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REPORT DOCUMENTATION PAGE Form Approved

OMB No. 0704-0188

2. REPORT TYPE 

Technical Memorandum

 4. TITLE AND SUBTITLE

Improvement to Airport Throughput Using Intelligent Arrival Scheduling 

and an Expanded Planning Horizon 

5a. CONTRACT NUMBER

 6. AUTHOR(S)

Glaab, Patricia C.

 7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)

NASA Langley Research Center

Hampton, VA 23681-2199

 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)

National Aeronautics and Space Administration

Washington, DC 20546-0001

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Availability: NASA CASI (443) 757-5802

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14. ABSTRACT

The first phase of this study investigated the amount of time a flight can be delayed or expedited within the Terminal Airspace using only speed changes. The 

Arrival Capacity Calculator analysis tool was used to predict the time adjustment envelope for standard descent arrivals and then for CDA arrivals. Results 

ranged from 0.77 to 5.38 minutes. STAR routes were configured for the ACES simulation, and a validation of the ACC results was conducted comparing the 

maximum predicted time adjustments to those seen in ACES. The final phase investigated full runway-to-runway trajectories using ACES. The radial distance 

used by the arrival scheduler was incrementally increased from 50 to 150 nautical miles (nmi). The increased Planning Horizon radii allowed the arrival 

scheduler to arrange, path stretch, and speed-adjust flights to more fully load the arrival stream. The average throughput for the high volume portion of the day 

increased from 30 aircraft per runway for the 50 nmi radius to 40 aircraft per runway for the 150 nmi radius for a traffic set representative of high volume 

2018. The recommended radius for the arrival scheduler’s Planning Horizon was found to be 130 nmi, which allowed more than 95% loading of the arrival 

stream. 

15. SUBJECT TERMS

Airports; Airspace; Arrivals; NextGen; Runways; Scheduling; Simulation

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