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Evaluation of a cab design in earthmoving construction equipment.

Authors
Viswanathan-M; Jorgensen-M; Kittusamy-N
Source
American Industrial Hygiene Conference and Exposition, May 21-26, 2005, Anaheim, California. Fairfax, VA: American Industrial Hygiene Association, 2005 May; :48
NIOSHTIC No.
20027315
Abstract
Awkward postures while operating construction equipment are due to improper cab design and work procedures. If not addressed, awkward posture of any body part can result in increased risk of fatigue, pain or injury. The objective of this study was to use a checklist for evaluating cab design of construction equipment. This checklist has 31 questions that can be used to evaluate different characteristics of cab design. Eighteen pieces of earthmoving construction equipment were analyzed, including excavators, dozers and dump trucks. An overall score for each cab was calculated by assigning equal weight to all questions. Results showed that the overall total cab design scores for all equipment ranged from 77 to 97 percent, the higher the score the better the design. Some design concerns were: 1) the seat did not swivel in the majority of the equipment (94%), 2) the controls in most of the dump trucks were not adjustable, 3) among the various dump trucks, some of the operators felt vibration through the floor, seat and/or controls of the cab, and 4) noise was a common problem among the dozers. This checklist was useful in identifying several design characteristics of the cab that may need further improvement, which in turn can be useful in reducing awkward postures and improving the working environment.
Keywords
Construction-industry; Construction-equipment; Posture; Risk-analysis; Risk-factors; Fatigue; Injuries; Workplace-studies; Work-environment; Noise-exposure; Vibration-exposure; Equipment-operators
Publication Date
20050521
Document Type
Abstract
Fiscal Year
2005
NTIS Accession No.
NTIS Price
NIOSH Division
SRL
Source Name
American Industrial Hygiene Conference and Exposition, May 21-26, 2005, Anaheim, California
State
WA; KS
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