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Causal Effects of Landing Parameters on Runway Occupancy Time using Causal Machine Learning Models
- Source :
- SSCI
- Publication Year :
- 2020
- Publisher :
- IEEE, 2020.
-
Abstract
- Limited runway capacity is a common problem faced by most airports worldwide. The two important factors that affect runway throughput are the wake-vortex separation and Runway Occupancy Time (ROT). Therefore, to improve runway throughput, Wake Turbulence Re-categorisation program (RECAT) was introduced to reduce the minimum separation distance required between successive aircraft on final approach. As a result, the constraining impact of ROT on runway throughput has now become significant. The objective of this paper is to identify data-driven intervention to reduce the ROT of landing aircraft. Specifically, we propose a data-driven approach to estimate the causal effect of landing parameters on ROT. We propose categorisation of each landing parameter into groups using Gaussian process models and employ Generalised Random Forest (GRF) to estimate the average treatment effect and the standard deviation of each landing parameters. Experimental results show that a few procedural changes to current landing procedure may reduce ROT. The results establish that slowing down the aircraft speed in the final approach phase leads to shorter ROT. In the final approach phase, ROTs of aircraft which are at least 10 knots slower than the average aircraft speed are on an average 2.63 seconds shorter. Furthermore, aircraft that are at least 10 knots faster than the average aircraft have on average 4 seconds longer ROTs. The second finding of this work is that flexible glide-slope angles should be introduced for the different aircraft types to achieve better ROT performance. Therefore, our findings also validate the industry need for Ground-Based Augmented System landing system which provides landing guidance with flexible glide-slopes. Civil Aviation Authority of Singapore (CAAS) Nanyang Technological University Accepted version This research has been supported by the Civil Aviation Authority of Singapore (CAAS) and the Air Traffic Management Research Institute (ATMRI), Singapore.
- Subjects :
- Runway Occupancy Time
020301 aerospace & aeronautics
Computer science
Average treatment effect
Computer science and engineering::Computing methodologies::Artificial intelligence [Engineering]
Separation (aeronautics)
Work (physics)
02 engineering and technology
01 natural sciences
Standard deviation
010104 statistics & probability
symbols.namesake
0203 mechanical engineering
Control theory
symbols
Runway
Aeronautical engineering::Aviation [Engineering]
0101 mathematics
Wake turbulence
Throughput (business)
Gaussian process
Causal Machine Learning
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2020 IEEE Symposium Series on Computational Intelligence (SSCI)
- Accession number :
- edsair.doi.dedup.....f0df357b56676907ac6c992e88ce4a21