Proposed Arrival Procedures to Seattle-Tacoma International Airport Volume 1 – Main Document 31 October 2012 Prepared by: United States Department of Transportation Federal Aviation Administration ...
Seattle Times: Quieter skies ahead: Seattle at forefront of high-tech plan to change airplane traffic
The new technology steers air traffic on autopilot along a smoothly descending, satellite-guided path, avoiding the stair-step approach and constant interplay with air traffic controllers now required to bring in planes.