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Mining Topic: Interface and Job Design
Keywords: Equipment design Equipment operation Proper work techniques
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All interface and job design content
What is the health and safety problem?
Equipment design refers not only to overall design specifications but also to design of the components and interfaces used by mine workers to do their jobs and to maintain the equipment. For workers to perform in an effective, efficient manner without injury, it is critical that the cognitive and physical requirements be carefully considered and within human capabilities, limitations, and capacities. Careful consideration must be given to the workload and psychosocial aspects of the work.
The types of injuries related to equipment design run the full range from acute such as falls and crushing accidents to repetitive strain such as whole body vibration and overexertion. Some injuries are fatigue related but have not been well-documented or as easy to assess, detect, or predict. The root causes of injuries can often be brought back to the design of both jobs and equipment.
What is the extent of the problem?
Both underground and surface mining operations as well as preparation plants use a variety of production and maintenance equipment, conveyors, and monitoring equipment. The interface between the operator and the equipment is critical to safe and effective operation. Mine workers are sometimes remotely located to their equipment, the equipment is large, and the visibility of other workers is reduced. Larger equipment may also increase the physical demands during maintenance.
How is the NIOSH Mining Program addressing this problem?
Much work has been accomplished in the area of seating and whole body vibration effects on health and safety. The NIOSH Mining Program is developing and conducting testing in the areas of proximity warning systems to provide operators with the knowledge of how close they are to hazards in and around equipment so they can make better decisions for their own health and safety. On a broader level, an audit program is currently underway which will help mines to evaluate their equipment and jobs to reduce musculoskeletal injuries.
NIOSH is also conducting tests in the area of controls design to help limit acute injuries caused by operators inadvertently activating the incorrect control or the correct control in the wrong direction. Current research is focused on roof bolting equipment for underground mining but the principles and concepts will be applicable to the design of all equipment.
What are the significant findings?
Our research led to the NIOSH-developed shuttle car seat which was shown to have reduced major jarring and jolting better than any other commercially available seat. The leading manufacturer of shuttle car equipment in the U.S. provides the NIOSH seat as an option in its equipment list.
Training and assessment programs have resulted in interventions in the mining industry when researchers followed up with the mines that implemented the programs. These interventions were based on the principles and guidelines given in the NIOSH-developed training and demonstrations products.
A controls design study showed the importance of standardized controls when shape coding and location coding are used. Also, a precursor for controls that have been known to be involved in severe injury and death can be effectively coded with a feedback mechanism to alert the operator of the pending motion.
What are the next steps?
Research into the presentation of data from these new technology devices is critical to their use, interpretation, and acceptability. The final evaluation of the controls research will be conducted in the field to determine its usefulness and practicality. Providing guidelines and principles to the mining industry to evaluate the industry’s technology needs and the best design criteria for purchases is needed.
See Also
The Consequences of 'Leaky' Enclosures
Continuous Mining: A Pilot Study of the Role of Visual Attention Locations and Work Position in Underground Coal Mines
Development and Demonstration of a Robotic Support Vehicle for Underground Mine Rescue Efforts
Development of both a Dockable and Hybrid Person-Wearable Self-Contained Self-Rescuer
Ergonomic and Existing Seat Designs Compared on Underground Mine Haulage Vehicles
Ergonomics and Risk Factor Awareness Training for Miners - 1.0
Ergonomics: Beyond Compliance
Evaluation of Systems to Monitor Blind Areas Behind Trucks Used in Road Construction and Maintenance: Phase 1
Experiments on Personal Equipment for Low Seam Coal Miners: IV. Incorporating Coiled Cord Into Cap Lamp Battery Cords
Inexpensive, Easy to Construct Materials-handling Devices for Underground Mines
Job Design: An Effective Strategy for Reducing Back Injuries
Laboratory Investigation of Seat Suspension Design Performance during Vibration Testing
A Method for Evaluating System Interactions in a Dynamic Work Environment
Practical Demonstrations of Ergonomic Principles
Predicting System Interactions in the Design Process
Preventing Equipment Related Injuries in Underground U.S. Coal Mines
Programmable Electronic Mining Systems: Best Practice Recommendations (In Nine Parts): Part 2: 2.1 System Safety
Programmable Electronic Mining Systems: Best Practice Recommendations (In Nine Parts): Part 8: 6.0 Safety File Guidance
Self-Reported Musculoskeletal Symptoms Among Operators of Heavy Construction Equipment
Task Analysis
Page last reviewed: October 25, 2016
Page last updated: October 25, 2016
Content source: National Institute for Occupational Safety and Health, Mining Program
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