ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA
ARI obtained human factors data with the exception of noise-level data and training implications data by administering two questionnaires to drivers of three types of high mobility vehicles the Lockheed Twister Dragon Wagon DW, the M813 5-ton truck, and the M520 GOER truck. Noise-level data for these trucks and for the M656 cargo truck were obtained by the Field Instrumentation Division of the MASSTER Engineering and Instrumentation Directorate. The principle findings were The Dragon Wagon was ranked significantly superior to the 5-ton and GOER on 16 of 26 human factors items The Dragon Wagon was markedly superior to the 5-ton, GOER, and M656 on noise- level tests Driver training provided on the Dragon Wagon was judged sufficient in 9 out of 14 areas by four or more of six drivers especially trained on that vehicle. In 5 acreas three or more of the drivers felt that additional training would be useful and The Dragon Wagon, GOER, and 5-ton each have selected characteristics that require special training.