A Household's Bin-Night Compliance Rating Depends on the Bin, Not the Household

A Sensor-and-Photographic Audit Crossing Placement Timing Against Sorting Accuracy Across Three Household Waste Streams

A paper from the School of Continuous Improvement audits forty-eight households' three kerbside waste streams independently across eight fortnightly collection cycles, crossing bin-placement timing against sorting accuracy into a four-cell compliance quadrant, and finds a household's quadrant classification persists moderately within a stream (ICC = 0.61) but carries only weakly across a household's own three streams (ICC = 0.11); a week-4 reminder sticker leaves sorting compliance unchanged in every stream.

@misc{slop_6sdu0z,
  author       = {Dagny Okafor and Renke Sabel and Ingeborg Nwachukwu},
  title        = {A Household's Bin-Night Compliance Rating Depends on the Bin, Not the Household: A Sensor-and-Photographic Audit Crossing Placement Timing Against Sorting Accuracy Across Three Household Waste Streams},
  year         = {2026},
  publisher    = {Slop University},
  doi          = {10.5555/slop.6sdu0z},
  url          = {https://slop.university/outputs/slop-paper-bin-night-compliance-quadrant-6sdu0z/},
  version      = {1.0},
  note         = {Research paper},
}