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OSM Postcode Mapping for L3 4 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 %
L3 4 75 74 11 14.9%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
L3 4AA 10 0
L3 4AB 10 2 0
L3 4AD 10 0
L3 4AE 10 Salthouse Quay 1
L3 4AF 10 0
L3 4AG 10 2 0
L3 4AJ 10 0
L3 4AN 10 Hartley's Quay 1
L3 4AQ 10 0
L3 4AS 10 0
L3 4AX 10 0
L3 4AY 10 0
L3 4AZ 10 Riverside Drive 1
L3 4BB 10 Albert Dock 1
L3 4BE 10 Atlantic Way 1
L3 4BF 10 Chaloner Street 1
L3 4BG 10 0
L3 4BH 10 0
L3 4BJ 10 0
L3 4BL 10 0
L3 4BN 10 Brunswick Way 1
L3 4BP 10 0
L3 4BQ 10 0
L3 4BT 10 0
L3 4BU 10 0
L3 4BW 10 0
L3 4BX 10 Monarch Quay 1
L3 4DA 10 0
L3 4DB 10 0
L3 4DE 10 0
L3 4DF 10 0
L3 4DG 10 0
L3 4DH 10 2 0
L3 4DJ 50 2 0
L3 4DN 10 0
L3 4DP 10 0
L3 4DQ 10 2013‑07 0
L3 4DR 10 0
L3 4DT 10 0
L3 4DU 10 0
L3 4DX 10 0
L3 4DY 10 0
L3 4DZ 10 0
L3 4EB 10 0
L3 4ED 10 0
L3 4EE 10 0
L3 4EF 10 0
L3 4EG 10 0
L3 4EH 10 0
L3 4EJ 10 0
L3 4EL 10 0
L3 4EN 10 0
L3 4EP 10 0
L3 4EQ 10 0
L3 4ER 10 0
L3 4ES 10 0
L3 4ET 10 0
L3 4EU 10 0
L3 4EW 10 0
L3 4EX 10 0
L3 4EY 10 0
L3 4FA 10 0
L3 4FB 10 0
L3 4FD 10 0
L3 4FE 10 0
L3 4FF 10 0
L3 4FG 10 0
L3 4FH 10 0
L3 4FL 50 2015‑10 0
L3 4FN 10 Keel Wharf 2
L3 4FP 10 Kings Dock 1
L3 4FT 10 2020‑07 0
L3 4FW 10 2020‑07 0
L3 4FX 10 0
L3 4GA 50 2019‑01 0
L3 4GB 10 0
L3 4GE 10 3 0
L3 4GF 10 3 1
L3 4GG 10 3 0
L3 4SL 10 2013‑07 0
L3 4UU 10 0
L3 4XX 10 174 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
L3 4GF 1 r79697
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.