Wide Area Augmentation System - Benefits
The WAAS will allow GPS to be used as a primary means of navigation from takeoff through Category I precision approach. Other modes of transportation also benefit from the increased accuracy, availability, and integrity that WAAS delivers. The WAAS broadcast message improves GPS signal accuracy from 100 meters to approximately 7 meters.
The benefits of WAAS to civil aviation will be substantial. WAAS improves the efficiency of aviation operations due to: