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OSM Postcode Mapping for M1 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 %
M1 4 58 58 53 91.4%

All units within this sector:

Unit Street Name PQI ML Mapped
M1 4AB George Street 10 2
M1 4AD New York Street 10 2 1
M1 4AH Piccadilly Plaza 10 6
M1 4AJ Portland Street 10 1
M1 4AL Piccadilly Plaza 10 1
M1 4BE 10 2 0
M1 4BH Oxford Street 10 2
M1 4BP St James Street 10 1
M1 4BT 10 2 0
M1 4DA Princess Street 10 1
M1 4DY Faulkner Street 10 1
M1 4DZ Charlotte Street 10 1
M1 4EE Faulkner Street 10 11
M1 4EH Faulkner Street 10 2
M1 4EJ Nicholas Street 10 2 7
M1 4EN Nicholas Street 10 1
M1 4ET Faulkner Street 10 1
M1 4EX Charlotte Street 10 2 1
M1 4FD Charlotte Street 10 2 3
M1 4FE Nicholas Street 10 2 2
M1 4FF Faulkner Street 10 6
M1 4FH Faulkner Street 10 12
M1 4FL Charlotte Street 10 3
M1 4GS Portland Street 10 4
M1 4GU Portland Street 10 6
M1 4GX Portland Street 10 9
M1 4HA George Street 10 1
M1 4HB Charlotte Street 10 1
M1 4HD New York Street 10 2 1
M1 4HE George Street 10 3
M1 4HF George Street 10 13
M1 4HH Princess Street 10 2
M1 4HJ New York Street 10 1
M1 4HL Nicholas Street 10 1
M1 4HN New York Street 10 3
M1 4HQ George Street 10 2
M1 4HR Princess Street 10 1
M1 4HT Princess Street 10 11
M1 4JB New York Street 10 3
M1 4JD New York Street 10 1
M1 4JY Princess Street 10 2
M1 4LB Princess Street 10 3
M1 4LF 10 0
M1 4LG Princess Street 10 2
M1 4LX Dickinson Street 10 3
M1 4LY Princess Street 10 0
M1 4NB Princess Street 10 2
M1 4PB 10 0
M1 4PH Portland Street 10 1
M1 4PY Portland Street 10 2
M1 4PZ Portland Street 10 1
M1 4QD Portland Street 10 1
M1 4QT Portland Street 10 1
M1 4QU Portland Street 10 7
M1 4QX Portland Street 10 4
M1 4RJ Portland Street 10 1
M1 4RL Portland Street 10 3
M1 4RS 50 0
M1 4TD 10 0
M1 4WB Portland Street 10 1

Units with street mismatches in this sector:

No mismatches found in this sector.

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.