Evaluation of Triple Simultaneous Parallel ILS Approaches Spaced 4300 Feet Apart. Phase IV.A
Abstract
This study was part of an ongoing effort to evaluate plans for increasing air traffic capacity and to evaluate the feasibility of using multiple simultaneous parallel Instrument Landing System (ILS) approaches. The objective was to evaluate the ability of experienced controllers to handle approach traffic during Instrument Meteorological Conditions (IMC). The proposed configuration consisted of triple parallel runways 10,000 feet (ft) long, spaced 4300 ft apart with even thresholds. The controllers were able to satisfactorily resolve more than 90 percent of the blunders in this simulation. Of the 244 blunders simulated, only 23 blunders resulted in aircraft violating the criterion miss distance of 500 ft. The controllers stated that they were able to maintain the 500-ft miss distance with the exception of a few 30 deg blunders (appendix A). The controllers indicated that a departure monitor position would be unnecessary because all of the functions of the departure monitor controller could be provided by local and departure control positions. finally, the controllers reported that higher update rate radar sensors and improved displays would enhance their performance. The Multiple Parallel Technical Work Group (TWG), based on their observations during the simulations and their understanding of the contingencies that must be accounted for in such an operation, determined that triple simultaneous parallel approach operations spaced at 4300 ft would not be acceptable if controllers were required to use ASR-9 radar and the ARTS IIIA displays.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1991
- Accession Number
- ADA243860
Entities
People
- G. Yastrop
- I. Hitchcock
- L. W. Bensel
- R. Jason Jones
- T. Fischer