Wayfinding Speakers for Plane

Specification: A speaker that tells the location of the current location as well as the locations of the next turning points.

Accessibility issues to address: Cognitive impairment

Recommendations:

  • Avoid having any background music or sounds that distract from the message being communicated.
  • The volume of the speakers should be at least 20 db higher than the backgrounder sound if there is any
  • Provide transcripts and captions for speech based audio content.

Photographs of the surrounding area and Airfield

Specification: The photographs will provide additional Information about the locality to the pilot

Accessibility issues to address: Visual impairment

Recommendations:

  • The body text typeset should be between 12 to 24 pt.
  • The paper on which the photos will be printed should minimise glare and enhance contrast and clarity
  • The paper-stock should be thick enough to prevent any distracting ink show-through.

A direct text to speech button on the app

Specification: The pilot could avoid reading if the details are read out to them

Accessibility issues to address: Visual and Cognitive impairment

Recommendations:

  • Implement a clear linear progression of ideas, and avoid needlessly complex sentence and paragraph structures.
  • Avoid using idioms.
  • Ensure that the context or usage of the homonym makes the intended meaning unambiguous.
  • Avoid using homonyms if they are not necessary.
  • Avoid incorporating foreign words into your language usage, unless there really is no equivalent word or expression.

Font for the app

Specification: The font will be the conveying language for the user so it should be at a perfect scale

Accessibility issues to address: Visual impairment

Recommendations:

  • Font have a Roman (upright) stance.
  • The width of an uppercase “O” should be within 75% and 105% of the height of an uppercase “I.”
  • Use Adobe Garamond.
  • The thick to thin stroke ratio should be 2.5:1.
  • The stroke weight to character height ratio should be 1:10.
  • Paragraph spacing should be 60%.