title: Perceptions of tilt angles of an agricultural tractor.
abstract: A tractor stability simulator has been developed to help study tractor operators' perceptions of angles when the simulator is tilted to the side. The simulator is a trailer-mounted tractor cab equipped with hydraulic lift that can tilt the tractor cabin up to 30 degrees. This paper summarizes data from 82 participants who sat in the simulator while it was tilted. Demographic variables, estimates of tilt angles, and measured tilt angles were collected. The effects of age, gender, tractor driving experience, and frequency of operation on the estimated and measured tilt angles were analyzed. The results showed that about 50% of the participants reported estimations of side tilt angles within ±5 degrees of the actual angles, and nearly the same percentage overestimated the actual side tilt angles. Only a small percentage underestimated the angles. Older, more experienced, and male participants set higher limits on the actual angle at which they felt uncomfortable and would not drive.
authors.affiliation: a Department of Biosystems Engineering , Mustafa Kemal University , Hatay , Turkey.
authors.forename: Serap
authors.initials: S
authors.lastname: Görücü
authors.forename: Eugenio
authors.initials: E
authors.lastname: Cavallo
authors.forename: Dennis
authors.initials: D
authors.lastname: Murphy
mesh_terms: D000062:Accidents, Occupational; D000293:Adolescent; D000328:Adult; D000383:Agriculture; D002648:Child; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018986:Motor Vehicles; D033281:Nontherapeutic Human Experimentation; D013028:Space Perception; D013997:Time Factors; D055815:Young Adult