A Study of Optimization of Aircraft Separation using the Time Based Separation at Tribhuvan International Airport

Nishan Khadka¹ , Sulav Parajuli² , Aayush Bhattarai³ , Sanjaya Neupane⁴

Section:Research Paper, Product Type: Journal-Paper
Vol.7 , Issue.2 , pp.1-7, Jun-2020

Online published on Jun 30, 2020

Copyright © Nishan Khadka, Sulav Parajuli, Aayush Bhattarai, Sanjaya Neupane . This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
 

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Abstract :
The Tribhuvan International Airport (TIA) uses the conventional distance-based separation minima for separation of two consecutive aircraft in approach and a basic Time-based separation (TBS) for aircraft in open airspace. The possibility of saving time by switching from the Distanced Based Separation (DBS) system to a fully Enhanced Time Based Separation (ETBS) can improve TIA?s approach procedure. This paper focuses on a study of the comparative analysis between the DBS and the ETBS system for TIA, using Monte-Carlo simulation-based upon various parameters that affect separation between the aircraft. The preliminary setup includes random number mapping for weight class of the plane, wind speed, approach speed, and wind direction in MS Excel. However, few limitations and exceptions are considered for the research. An average daily time lag of 79 minutes was observed between DBS and TBS. Hence, implementation of the ETBS system can save TIA almost 20 days of operation annually

Key-Words / Index Term :
DBS, TBS, ETBS, Wake Vortices, Aircraft, Seperation, Approach, TIA

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