Pilot use of voice and datalink communications for Interval Management (IM)

□ Conduct exploratory research to identify Human Factors issues across Next Generation Air Transportation System (NextGen) capabilities and domains □ Examine the interactions between air traffic controllers and flight crews when using a set of defined Controller Pilot Data Link Communications (CPDLC) messages for Interval Management (IM) during Arrival and Approach operations □ Examine various levels of complexity of an IM clearance to determine acceptability under both voice communications and CPDLC □ Provide results to support technical and operational requirements development □ Reduce risk associated with NextGen implementation of CPDLC and IM.