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OSM Postcode Mapping for CH41 9 Postal Sector

The circles on the map above are the postcode unit 'centriods' from Code-Point Open, under the Open Government Licence. The 'centriod' is calculated by taking the average of the coordinates of all the delivery points with that postcode, and then snapping that location to the nearest delivery point in that postcode. The data may be freely used in OpenStreetMap, but please make sure you understand it first. Also please only add postcodes to objects representing addressable entities; do not add the postcode centroids as themslves. Suggested source tag code-point_open

The circles are coloured by whether or not there is at least one OSM object with that value in its addr:postcode tag. Click on a point to see the postcode. The numbers in brackets are the number of OSM objects with that postcode.

The centroids are the location of the nearest 'delivery point' to the arithmetic mean of the coordinates of all the delivery points within that unit. Those points with a codepoint PQI greater than 40 are excluded from the map above. (Higher values are typically not geographically accurate. In particular, PQI=50 is used for new postcodes before the location has been determined. The location given for such postcodes seems to be derived from other existing postcodes with similar units letters, which may not be close to the new postcode.)

The pale blue lines from the circles join each Code-Point Open centroid to the mean coordiantes of all the OSM objects with that postcode. (For ways an relations, the centre of the rectangular bounding box is used at the coordinates for the OSM object.) Long lines may indicate missing or incorrect OSM objects for that postcode. In particular, if all the postcodes in a givne unit are correctly mapped, the circle should be located on the nearest delivery point within that postcode to the other end of the blue line.

The OSM data for the number of objects with each unit is usually updated once a day at about 10:15 UTC, with data from about 20:30 UTC the previous day. The data used to compute the OSM mean position is updated less frequently, usually about once a week.

District Sector Units Geo. Units Mapped %
CH41 9 81 81 4 4.9%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
CH41 9AA 10 2021‑12 0
CH41 9AB 10 2021‑12 0
CH41 9AD 10 2021‑12 0
CH41 9AE 10 2021‑12 0
CH41 9AF 10 2021‑12 0
CH41 9AG 10 2021‑12 0
CH41 9AH 10 2021‑12 0
CH41 9AJ 10 2021‑12 0
CH41 9AL 10 2021‑12 0
CH41 9AN 10 2021‑12 0
CH41 9AP 10 2021‑12 0
CH41 9AQ 10 2021‑12 0
CH41 9AR 10 2021‑12 0
CH41 9AS 10 2021‑12 0
CH41 9AT 10 2021‑12 0
CH41 9AU 10 2021‑12 0
CH41 9AW 10 2021‑12 0
CH41 9AX 10 2021‑12 0
CH41 9AY 10 2021‑12 0
CH41 9AZ 10 2021‑12 0
CH41 9BA 10 2021‑12 0
CH41 9BG 10 2021‑12 0
CH41 9BJ 10 2021‑12 0
CH41 9BN 10 2021‑12 0
CH41 9BP 10 2021‑12 0
CH41 9BQ 10 2021‑12 0
CH41 9BU 10 2021‑12 Birkenhead Central Station 2 1
CH41 9BW 10 2021‑12 New Chester Road 2
CH41 9BX 10 2021‑12 0
CH41 9BY 10 2021‑12 0
CH41 9BZ 10 2021‑12 0
CH41 9DA 10 2021‑12 0
CH41 9DB 10 2021‑12 2 0
CH41 9DD 10 2021‑12 0
CH41 9DE 10 2021‑12 0
CH41 9DF 10 2021‑12 Mollington Link 6
CH41 9DG 10 2021‑12 0
CH41 9DH 10 2021‑12 0
CH41 9DJ 10 2021‑12 0
CH41 9DL 10 2021‑12 0
CH41 9DN 10 2021‑12 0
CH41 9DP 10 2021‑12 0
CH41 9DQ 10 2021‑12 0
CH41 9DR 10 2021‑12 0
CH41 9DS 10 2021‑12 0
CH41 9DT 10 2021‑12 0
CH41 9DU 10 2021‑12 0
CH41 9DW 10 2021‑12 0
CH41 9DX 10 2021‑12 0
CH41 9DY 10 2021‑12 0
CH41 9DZ 10 2021‑12 0
CH41 9EA 10 2021‑12 0
CH41 9EB 10 2021‑12 0
CH41 9ED 10 2021‑12 0
CH41 9EG 10 2021‑12 0
CH41 9EH 10 2021‑12 0
CH41 9EJ 10 2021‑12 0
CH41 9EL 10 2021‑12 0
CH41 9EN 10 2021‑12 0
CH41 9EP 10 2021‑12 0
CH41 9EQ 10 2021‑12 0
CH41 9ER 10 2021‑12 0
CH41 9ES 10 2021‑12 0
CH41 9ET 10 2021‑12 0
CH41 9EU 10 2021‑12 0
CH41 9EW 10 2021‑12 0
CH41 9EY 10 2021‑12 0
CH41 9EZ 10 2021‑12 0
CH41 9FD 10 2021‑12 0
CH41 9HA 10 2021‑12 0
CH41 9HB 10 2021‑12 0
CH41 9HD 10 2021‑12 0
CH41 9HE 10 2021‑12 0
CH41 9HH 10 2021‑12 0
CH41 9HJ 10 2021‑12 0
CH41 9HP 10 2021‑12 Campbeltown Road 1
CH41 9HQ 10 2021‑12 0
CH41 9HS 10 2021‑12 0
CH41 9HT 10 2021‑12 0
CH41 9HU 10 2021‑12 0
CH41 9HX 10 2021‑12 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
CH41 9DF 6 Mollington␣Link w55389584 The␣Rock␣Retail␣Park,␣New␣Chester␣Road
Data derived from OpenStreetMap data, © OpenStreetMap Contributors, licensed under Open Data Commons Open Database License (ODbL). Data derived in part using Code-Point Open under the Open Government Licence v3; Contains OS data © Crown copyright and database right 2020; Contains Royal Mail data © Royal Mail copyright and Database right 2016; Contains National Statistics data © Crown copyright and database right 2020.