Illustration for Right Colour, Wrong Reason: Testing Whether a Kerbside Recycling Contamination Sticker Tells Residents What the Crew Actually Logged

Right Colour, Wrong Reason

Testing Whether a Kerbside Recycling Contamination Sticker Tells Residents What the Crew Actually Logged

A research poster from the School of Continuous Improvement audits whether residents can decode a kerbside recycling bin's coded contamination sticker, comparing 248 doorstep guesses against the collection crew's own logged reason across nine streets. Guesses match the crew's code in 31% of pairs, with soft-plastics and food-soiled-paper codes confused most often.

AuthorsSten Okwuosa, Thandiwe Solberg
SchoolSchool of Continuous Improvement
Output typeResearch poster
Published
DOI10.5555/slop.73lumm
Pages1
Version1.0
LicenceCC BY 4.0

Cite as

@misc{slop_73lumm,
  author       = {Sten Okwuosa and Thandiwe Solberg},
  title        = {Right Colour, Wrong Reason: Testing Whether a Kerbside Recycling Contamination Sticker Tells Residents What the Crew Actually Logged},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.73lumm},
  url          = {https://slop.university/outputs/slop-poster-auditing-whether-residents-73lumm/},
  version      = {1.0},
  note         = {Research poster},
}