Bus Operator Workstation Design for Improving Occupational Health and Safety (2016) / Chapter Skim
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Pages 8-15
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From page 8... ...
8Problem Statement In 1997, TRB published TCRP Report 25: Bus Operator Workstation Evaluation and Design Guidelines. The report served as a reference for transit agencies seeking to evaluate and procure buses based on ergonomic considerations affecting musculoskeletal demands and human factors considerations for bus operators.
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Project Overview 9 operator turnover, illness, absenteeism, and injury costs; and (c) public liability and property damage costs; 5.
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10 Bus Operator Workstation Design for Improving Occupational Health and Safety manipulating the steering wheel in repeated 90° turn maneuvers, moving the legs and feet forcefully or awkwardly operating foot controls, repeatedly adjusting the torso to ensure safe visibility, and absorbing vibration through the seat, floor, or steering wheel. Vehicle architecture may amplify biomechanical strains; for example, there is a trade-off between the comfort of the operator workstation compartment and optimization of the design of other areas, such as the passenger walkway, passenger seating and storage, and access to the fare box.
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From page 11... ...
Project Overview 11 Comfort, in addition to safety, was an area of concern to transit agency staff, industry experts, and bus operator union officers participating in the current research. They agreed that bus operators should play a central role with their transit agencies in defining how the bus operator workstations should be designed.
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12 Bus Operator Workstation Design for Improving Occupational Health and Safety model to carry out assessment and testing more efficiently than if the process were done solely by engineers and designers. • Participatory ergonomics is especially important when the initial concern of the vehicle purchaser may not be the most important issue.
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Project Overview 13 authors of TCRP Report 25 also decided not to pursue adjustable pedals due to concerns about reliability. Without either adjustable floors or adjustable pedals, the assumptions of a fixed NSRP and optimized visibility were not supported for bus operators of various sizes.
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14 Bus Operator Workstation Design for Improving Occupational Health and Safety solid-modeling CAD. Gaps in the CAD data were filled by reverse engineering components from physical measurements of transit buses.
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Project Overview 15 • Appendix B: Bus Operator Workstation Engineering CAD Model Specifications demonstrate the steps and specifications that were applied to the creation of the Bus Operator Workstation Engineering CAD Model and Bus Operator Workstation 3-D PDF Model tools. • Appendix C: Construction of Multivariate Manikins in Human Modeling Software demonstrates the steps and body dimensions applied to develop a group of simulation manikins representative of a recent U.S.
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