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