Impact of ESTOL Capability on Runway Capacity - An Analytical Approach

Abstract

This paper focuses on evaluating the impact of Extreme Short Takeoff and Landing (ESTOL) related parameters on a single runway by using and adapting worldwide accepted analytical models [5][8]. The models are based on aircraft dependent parameters (approach velocity and runway occupancy time, ROT), ATC relevant input variables (separation rules, final approach path, buffer times) as well as a number of system assumptions. The maximum technical capacity values of a single runway system were calculated by taking a typical aircraft fleet mix covering existing ICAO separation classes at an international airport with an additional ESTOL aircraft class for parameter variations. A ceteris paribus approach was used to appraise to what extent the approach velocity, the glide path or the runway occupancy time would affect aircraft flow. The results of the investigations demonstrate that new aircraft technologies like ESTOL cannot tap its full potential using conventional ATC procedures in the terminal airspace and runway system. By discussing the conclusions made out of the capacity analysis the paper gives recommendations how the capacity challenge can possibly be tackled.