Runway Capacity Analysis of Yogyakarta International Airport Using the Doratask Method

Abstract

Runway capacity is a critical factor in maintaining the safety and efficiency of airport operations, particularly in response to changes in aircraft traffic demand. This study aimed to analyze the runway capacity of Yogyakarta International Airport (YIA) using the DORATASK method. A quantitative approach was employed using primary data obtained through direct observation of aircraft movements at the air traffic control tower and secondary data on runway utilization. The analysis incorporated aircraft mix, runway occupancy time, approach speed, aircraft separation, and runway utilization percentage. The results showed that the Mean Runway Occupancy Time (MROT) was 100.371 seconds for runway 11 and 98.709 seconds for runway 29. The Physical Capacity Runway (PCR) values were 35.866 and 36.470 movements per hour, respectively. The calculated Theoretical Runway Capacity (TRC) was 29.681 movements per hour for runway 11 and 31.926 movements per hour for runway 29. The Declared Capacity of the Runway (DCR), based on runway utilization percentages of 63.97% and 36.03%, was 30.490 movements per hour, equivalent to approximately 30 movements per hour when expressed as a whole number. At 80% and 90% capacity levels, the corresponding values were 24.392 and 27.441 movements per hour, respectively. These findings indicate that runway 29 has a higher calculated physical and theoretical capacity than runway 11. The results provide a quantitative basis for runway capacity evaluation and airport operational planning, subject to applicable aviation safety and operational requirements.

Keywords: DORATASK, Runway Capacity, Runway Occupancy Time, Aircraft Separation, Yogyakarta International Airport.