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Geometrias dos correios de Uruguai não satisfazem noção de jurisdição

Aparentemente os polígonos fornecidos representam "áreas de roteirização postal", e não necessariamente jurisdições.

Alguns exemplos representativos:

  • https://osm.codes/UY-AR-Artigas
    image
    Fica evidente que foi priorizada a "mancha urbana", deixando de fora o aeroporto, que certamente é também parte do território do município.

  • https://osm.codes/UY-CA-BarrosBlancos
    image
    A adição da "ilha" parece decorrência de traçado de "roteamento postal", muito mais do que delimitação de uma jurisdição consistente.

  • http://osm.codes/UY-TT-ArroceraQuerencia

    image
    Mais uma vez, aparência de "roteamento postal". O polígono tem a área de uma chácara (inferior a 1 km2), não de um município ou jurisdição.

Outra evidência é o tamanho dos polígonos. Abaixo a listagem dos 20 maiores depois dos 20 menores.

isolabel_ext max. grid side size (km)
UY-AR-Franquia 6
UY-CA-SantaLucia 6
UY-CO-ColoniaSacramento 5
UY-DU-Durazno 5
UY-FD-Florida 6
UY-MA-Maldonado 6
UY-MA-PuntaBallena 5
UY-MA-PuntaEste 5
UY-MO-Montevideo 15
UY-PA-ChacrasPaysandu 12
UY-PA-NuevoPaysandu 5
UY-PA-Paysandu 5
UY-RO-Rocha 5
UY-RV-Rivera 6
UY-SA-Salto 6
UY-SJ-CiudadPlata 5
UY-SO-ChacrasDolores 5
UY-SO-LaLoma 5
UY-SO-Mercedes 5
UY-TA-Tacuarembo 6
isolabel_ext max. grid side size (km)
UY-AR-LaBolsa 0.16
UY-CA-CuchillaSierra 0.20
UY-CA-QuintasBosque 0.16
UY-CL-Quebracho 0.18
UY-CO-ElQuinton 0.20
UY-CO-SanPedro 0.20
UY-PA-CuchillaBuricayupi 0.13
UY-PA-PuebloAlonzo 0.21
UY-PA-Soto 0.16
UY-RO-ElCaracol 0.22
UY-RO-PuenteValizas 0.20
UY-RO-PuertoBotes 0.20
UY-SA-Cayetano 0.19
UY-SA-PasoParqueDayman 0.20
UY-SO-CuchillaPerdido 0.14
UY-TA-CerroPastoreo 0.16
UY-TA-MontevideoChico 0.22
UY-TA-RinconPereira 0.20
UY-TT-ArroceraQuerencia 0.14
UY-TT-ArroceraSantaFe 0.18
select * from (
  select concat('[',isolabel_ext,'](https://osm.codes/',isolabel_ext,')') as isolabel_ext,
           round(  sqrt((st_area(geom,true)))/1000.0 , 2  ) km
  from optim.jurisdiction_geom 
  where isolabel_ext like 'UY-%-%'
  order by 2
  limit 20
) t order by 1;

L0 cover decision

Oriented to postal code base16

Initial choice, with no "ghost cell"
image

Optimized choice, using 3 "ghost cells": small fragment of 1J, 4J and 5K (design on base16h).
image

Oriented to postal code base32

(perhaps non-valid for scientific codes - need squares on hexadecimals).
Design on base16h... Using 3 "ghost cells": small fragment of 3Z, 5R and 4P.
image

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