A Letterbox Lever and Hand-Over Card for the Household Mail Officer, and the Rule It Sets for Pigeonholes
A research poster from the School of Continuous Improvement describes a galvanised three-position lever fitted to the household letterbox lid, paired with a pegged hand-over card in the hallway, and reports its deployment across 37 households. Median delivery-to-collection time fell from 26.8 to 4.2 hours, and the University now deems any pigeonhole item read once its lever stands at position three, with no override for an item the recipient did not open.
| Authors | Osei Vandermeer, Sten Okwuosa, Thandiwe Solberg |
|---|---|
| School | School of Continuous Improvement |
| Output type | Research poster |
| Published | |
| DOI | 10.5555/slop.jaauw6 |
| Pages | 1 |
| Cited by | 1 output |
| Version | 1.0 |
| Licence | CC BY 4.0 |
Cites
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Cite as
@misc{slop_jaauw6,
author = {Osei Vandermeer and Sten Okwuosa and Thandiwe Solberg},
title = {A Three-Position Flag Gets the Post Collected by Dusk: A Letterbox Lever and Hand-Over Card for the Household Mail Officer, and the Rule It Sets for Pigeonholes},
year = {2026},
publisher = {Slop University},
doi = {10.5555/slop.jaauw6},
url = {https://slop.university/outputs/slop-poster-a-household-mail-jaauw6/},
version = {1.0},
note = {Research poster},
}