Accession Number : ADA019299

Title :   Human Factors Experiments for Data Link.

Descriptive Note : Final rept. Jan 72-Jun 75,

Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s) : Hilborn,Edwin H.

Report Date : NOV 1975

Pagination or Media Count : 145

Abstract : This report describes the results of a series of experiments to evaluate cockpit Input/Output devices for Data Link as Phase I of a larger project to explore all facets of the digital transmission of air traffic control information. Following preliminary laboratory experiments to investigate optimum means of formatting and presenting information, prototype hardware was fabricated and evaluated on GAT-1 and GAT-2 simulators. Deficiencies in the prototypes were noted, and new improved hardware was fabricated for further evaluation on the GAT-2 and airline simulators (B-727 and DC-9). Data Link as a concept was found to be generally acceptable, and there was widespread agreement that it would reduce crew workload. Airline pilots were concerned by the loss of information resulting from the selective address capabilities of Data Link, so that they did not hear messages intended for other aircraft. Pilots also questioned the acceptability of Data Link for ground and local control. Visual displays were preferred for all but emergency messages; for these, the use of synthetic speech (Vosyn) is a likely candidate. In-cockpit printout of clearances, weather and ATIS information was favorably received, and the use of keyboard input for downlink message generation was found to be acceptable. (Author)

Descriptors :   *Human factors engineering, *Air traffic control systems, *Input output devices, Flight crews, Data displays, Coding, Flight simulators, Cockpits, Data links, Formats, Data transmission systems, Visual aids, Printing, Voice communications, Reaction(Psychology), Performance(Human), Downlink, Laboratory tests

Subject Categories : Air Navigation and Guidance
      Human Factors Engineering & Man Machine System

Distribution Statement : APPROVED FOR PUBLIC RELEASE