Cockpit Display of Traffic Information Using GPS

This paper describes the need for, and the development of, an avionics device to provide cockpit display of proximate traffic. The device is targeted at general aviation (GA), and is designed to address the needs of this unique market; namely pilot utility and low cost. Traffic Alert and Collision Avoidance Systems (TCAS) are currently in use by the commercial airlines and are being installed by the commuter airlines, but high cost has virtually excluded their use by GA. This paper describes the requirements for surveillance and collision avoidance equipment in the national airspace system, the current avionics equipage by the U.S. aircraft fleet, and the GA avionics market. The operational and functional requirements for the new general aviation traffic alert system are presented accompanied by design, development, and schedule information. The paper also presents the issues and challenges of designing a system that will satisfy the needs of GA and the TCAS community. This paper contains only the understanding and views of the authors and is not intended to reflect the official position or view of the U.S. Government or Federal Aviation Administration (FAA).