Accession Number : AD0760401

Title :   Human Factors Experiments for Data Link.

Descriptive Note : Interim rept. no. 2, Aug 72-Jan 73,

Corporate Author : TRANSPORTATION SYSTEMS CENTER CAMBRIDGE MASS

Personal Author(s) : Hilborn,Edwin H. ; Devanna,Leonard R.

Report Date : APR 1973

Pagination or Media Count : 46

Abstract : Two experiments involving the coding of Air Traffic Control messages for digital data link transmission are reported. Reaction times and error rates to slide presentations were recorded for both experiments as a means for assessing the relative meaningfulness of messages. Experiment I studied the differences between long and short abbreviations with and without spaces. The need for the use of spaces was demonstrated. Experiment 2 provided a procedural variation using the same stimulus material as that reported in Section III of Report FAA-RD-72-150, with generally comparable results. It was again determined that for short ATC messages differences in type font were not significant, that arrows were generally better than words for altitude and heading commands, that a format of three short lines was better than one extended line, and that 'L' and 'R' as heading commands were extremely difficult to comprehend. (Modified author abstract)

Descriptors :   (*AIR TRAFFIC CONTROL SYSTEMS, *DATA TRANSMISSION SYSTEMS), CATHODE RAY TUBE SCREENS, AIR TRAFFIC CONTROLLERS, REACTION KINETICS, HUMAN FACTORS ENGINEERING, SPEECH TRANSMISSION, ANALYSIS OF VARIANCE, DIGITAL SYSTEMS

Subject Categories : Air Navigation and Guidance
      Voice Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE