Abstract
This paper identifies the need to provide timely return-on-investment for new technology. A study conducted by the Boeing Air Traffic Control Systems Analysis group is summarized. The study analyzes requirements and evaluates potential benefits expected from the use of Automatic Dependent Surveillance (ADS) in oceanic operations. The operation of the North Atlantic Oceanic Track System (NAT OTS) was used as the basis for the study.An oceanic tracks separation requirements analysis was performed to investigate the relationship among separation standards, navigation performance, and dependent surveillance. Lateral separations were analyzed using the traditional Reich collision-risk model approach. A longitudinal separation model was developed, based on the use of ADS and with the key parameters of controller intervention rate, tactical control response, and surveillance accuracy.The separation requirements were then used to quantify potential benefits for both the current NAT OTS with reduced separations (assuming all users are ADS equipped) and a postulated hybrid NAT OTS where equipped users derive immediate benefit. Results indicate a substantial savings derived from the hybrid track operation. © 1993 John Wiley & Sons, Inc.
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