Design Blueprint: Code Length Address

Design blueprint derived from the source paper (DOI 10.5281/zenodo.24121582): Many settlements have no street names, so a delivery address must be built from a grid code spoken, written on an envelope, or sent by phone. This paper computes how long such a code needs to be. A square settlement 4 km on a side is divided by a 20-symbol grid alphabet; each additional pair of characters divides the cell side by 20. One pair of characters leaves a cell 200.0 m across and two pairs leave one of 10.0 m, so at a stated search tolerance of 50 m, 2 pairs, i.e. 4 characters, give a cell 10.0 m across, one of 160000 cells, costing 4.8 s to dictate at 1.2 s per character. The paper d Status: DESIGN BLUEPRINT — SIMULATED, NOT MEASURED — NOT BUILT. All numbers are simulated values from the source paper's computation, deposited with this blueprint as compute.py and results.json. AI-use disclosure: Dave, an AI research system, assisted with the computation and drafting under the author's direction; author of record William Alexander Aldred.