Workstation Design

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Workstation Design

• IENG 321
• Ergonomics and Human Factors Engineering
• Spring 2009

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Industrial Ergonomics
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Anthropometry

• Size of workstation and employees
• Location of controls
• Type of work

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Sitting and standing

• We are meant to move, but relieving pressure in
  legs helps with fatigue
• Industrial seating more robust
• Do not stand on one leg for too long, alternate

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Manipulating, Reaching, Grasping

• Consider forces with reach distances and grasping
• Fine manipulations should require less force and
  workstation height is a factor as well

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Manual Material Handling

• Minimize risks associated with
• Posture, force, frequency, duration, etc

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Displays and controls

• Coding of controls
• Identification
• Operation
• Status
• Arrangement
• Frequency
• Importance

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Displays and controls
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Display design

• Moving pointer, fixed scale
• Conveys magnitude and direction of change
• Fixed marker, moving scale
• Cover large range, useful section in viewing
  window
• Digital readout
• For exact reading

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Error and Display Design
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Simple Displays

• When exact feedback not necessary
• Conditions of monitored processes
• Color usage with considerations for cultural
  differences

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Office Ergonomics

• Office work has led to more sedentary work and
  static postures, but we are designed for movement
• Get up and move around
• Micro-breaks and Stretching
• Software reminders
• Design climate, furniture and input devices to
  minimize ergonomic hazards

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Climate

• Warm or cold temperatures
• Energy exchange with surrounding environment
• Effects physical and psychological response

Does this sound familiar to other material?!?
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Lighting

• Sufficient to read text at normal viewing
  distances
• Printed material or monitor
• Illuminance
• Depends on task, objects to be seen, acuity
• 500 1000 lx
• Task lighting if more light needed
• Minimize glare
• Direct and indirect

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Seating

• Adjustable
• Supportive without pressure points
• Back (lumbar support)
• Arms (shoulder)
• Waterfall design

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Monitors

• Height and location
• Below horizontal line of sight
• Viewing distance
• Average 30 in.
• In front of user
• Document holders

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Input Devices

• Keyboard
• Location, wrist support
• Types
• Split, DVORAC
• Mouse
• Location, size, wrist support
• Controls and functions