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#postcodes

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Ghostsigns (Sam Roberts)

In 2018, I was part of a little project to document surviving streetname plates for London's defunct N.E. postal district.

ghostsigns.co.uk/projects/nesi

My partner in crime for that initiative was Nick Perry, who passed away suddenly last month. I have updated the above page on my website to formally dedicate the whole intiative to Nick in light of his incredible contribution.

RIP Nick

N.E. Signs| Ghostsigns | The following is an account of the work done in 2018 (and since) to record the surviving remnants of London's lost N.E. postal district. A more detailed paper documenting the history of the N.E. postal district and its surviving street signs can be found in Volume 21 of Hackney History. This is available for £5+P&P · N.E. Signs | Ghostsigns
#RIP#NESigns#London
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OpenCage 👉🌍

9. Ireland 🇮🇪 was the last country in Europe to introduce a national postal code system. Called "Eircodes", national postcodes were introduced only in 2014, and are still not widely used.

Sadly Eircodes are not open data, which means using them at scale (for example for geocoding) requires a license and paying a licensing fee 😬

finder.eircode.ie

en.wikipedia.org/wiki/Postal_a

Screenshot of the official Eircode site
#geoweirdness#postcodes
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SK53

Looking at ONS UPRN assignment to postcodes in inner city Coventry (postcode sector CV2 4) and noticing a few errors anomalies:

1. a few UPRNs well outside the basic area of the sector (all appear to be historical)
2. misplaced UPRNs, such as this one for 44 Roman Road (UPRN 100070694394)

Unique property nodes for Roman Road Coventry, green ones are in postcode CV2 4LD and are evens, orange ones in CV2 4LE and are odds). One green postcode is on the wrong side of the road.
#UPRN#OfficeofNationalStatistics#PostCodes
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SK53

Browsing rjw62's Mathmos QA site (osm.mathmos.net/addresses/pc-s) I noticed an OSM postcode centroid for Machrihanish village was oddly displaced. Turns out this is because of a golf course tagged with an address.

This is a classic example of a mismatch between physical & postal addresses (the postal address is in the village as one might expect), and the actual clubhouse on the course has a different postcode.

A map of the village of Machrihanish on the coast of the Mull of Kintyre. Green and Blue dots show mapped & unmapped postcode centroids respectively A blue line indicates the difference between these & centroids derived from OpenStreetMap data. In this case the centroid has moved onto a golf course
Another map of Machrihanish (from Overpass-Turbo) showing all the objects tagged with addr:postcode=P28 6PT highlighted with a blue outline. The Dunes golf couse is distant from the village and much closer to another one "Sound of Kintyre". The road distance is considerable as the airfield is in the way.
#OpenStreetMap#addresses#postcodes
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