The Effect Of Implementing Expected Approach Time On Smooth Air Traffic Flow At International Airports Syamsudin Noor Banjarmasin, Indonesia

Abstract

This study aims to analyze the effect of implementing the Expected Approach Time (EAT) on air traffic
smoothness at Syamsudin Noor International Airport, Banjarmasin. The research background stems from the
continued occurrence of airborne holding and go-arounds due to the suboptimal application of EAT by ATC.
This study employs a quantitative approach with an associative design. Data were collected through
observation, questionnaires, documentation, and literature review, involving 20 ATC personnel from the APP
unit of Perum LPPNPI Banjarmasin Branch as respondents. The research instrument was tested for validity
and reliability, and the data were analyzed using simple linear regression, t-test, Pearson correlation, and
coefficient of determination (R2). The results show a significant t-value (Sig. < 0.05), with a correlation
coefficient of 0.878, indicating a very strong relationship between EAT implementation and air traffic
smoothness. The coefficient of determination (R2) value of 0.771 indicates that 77.1% of the variation in air
traffic smoothness can be explained by EAT implementation, while the remaining 22.9% is influenced by
other factors outside this study. It is concluded that optimal EAT implementation has a positive and significant
effect on improving air traffic smoothness, reducing holding time, minimizing delays, and enhancing the
efficiency of airspace utilization.