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OSM Postcode Mapping for CH1 2 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 %
CH1 2 89 89 36 40.4%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
CH1 2AA 10 2013‑07 0
CH1 2AB 10 0
CH1 2AD 10 0
CH1 2AE 10 0
CH1 2AF 10 0
CH1 2AH 10 King Street 1
CH1 2AJ 10 0
CH1 2AN 10 0
CH1 2AQ 10 0
CH1 2AR 10 Hunter Street 4
CH1 2AS 10 0
CH1 2AU 10 0
CH1 2AW 10 0
CH1 2AX 10 0
CH1 2AY 10 0
CH1 2BA 10 0
CH1 2BD 10 Trinity Street 1
CH1 2BE 10 Crook Street 1
CH1 2BF 10 0
CH1 2BG 10 0
CH1 2BH 10 Hamilton Place 1
CH1 2BJ 10 Commonhall Street 1
CH1 2BN 10 Cuppin Street 1
CH1 2BQ 10 0
CH1 2BX 10 0
CH1 2BY 10 The Forum 1
CH1 2DD 10 Grosvenor Street 2
CH1 2DE 10 0
CH1 2DF 10 0
CH1 2DH 10 0
CH1 2DJ 10 Grosvenor Road 2
CH1 2DL 10 0
CH1 2DN 10 0
CH1 2DP 10 0
CH1 2DQ 10 0
CH1 2DR 10 2022‑07 0
CH1 2DS 10 Castle Street 1
CH1 2DW 10 St Mary's Hill 1
CH1 2DY 10 St Werburgh Street 5
CH1 2EA 10 2019‑01 0
CH1 2EF 10 2020‑12 0
CH1 2EJ 10 0
CH1 2ES 10 0
CH1 2ET 10 0
CH1 2EU 10 Music Hall Passage 1
CH1 2HA 10 Northgate Street 8
CH1 2HF 10 2013‑07 31 0
CH1 2HG 10 Saint Peter's Churchyard 1
CH1 2HH 10 Princess Street 1
CH1 2HJ 10 0
CH1 2HN 10 2013‑07 31 0
CH1 2HP 10 2019‑07 St Anne Street 1
CH1 2HQ 10 Northgate Street 11
CH1 2HR 10 2013‑07 0
CH1 2HS 10 2013‑07 31 0
CH1 2HT 10 Northgate Street 21
CH1 2HU 10 Abbey Square 1
CH1 2HX 10 0
CH1 2HY 10 2018‑10 112 0
CH1 2HZ 10 2013‑07 31 0
CH1 2JA 10 0
CH1 2JB 10 0
CH1 2JD 10 0
CH1 2JF 10 0
CH1 2JG 10 City Walls 1
CH1 2JH 10 Abbey Green 1
CH1 2JT 10 0
CH1 2JW 10 Rufus Court 3
CH1 2LA 10 Watergate Street 14
CH1 2LB 10 Watergate Street 12
CH1 2LD 10 Watergate Row North 5
CH1 2LE 10 Watergate Street South Row 7
CH1 2LF 10 Watergate Street 3
CH1 2LH 10 0
CH1 2LJ 10 Nuns Road 1
CH1 2LN 10 0
CH1 2LP 10 0
CH1 2LQ 10 0
CH1 2LR 10 Stanley Street 1
CH1 2LS 10 0
CH1 2LU 10 0
CH1 2LY 10 New Crane Street 5
CH1 2LZ 10 0
CH1 2NA 10 0
CH1 2ND 10 2013‑07 0
CH1 2NE 10 0
CH1 2NF 10 0
CH1 2NH 10 0
CH1 2NN 10 City Walls Road 1
CH1 2NP 10 0
CH1 2NR 10 0
CH1 2NS 10 0
CH1 2NT 10 0
CH1 2NU 10 Black Friars 1
CH1 2NW 10 Grey Friars 1
CH1 2NX 10 Nicholas Street 1
CH1 2NY 10 0
CH1 2NZ 10 0
CH1 2PQ 10 0
CH1 2PY 10 0
CH1 2QS 10 0
CH1 2RB 10 2015‑10 0
CH1 2SA 10 Northgate Street Rows 2
CH1 2WH 10 2013‑07 0
CH1 2WP 10 2013‑07 0
CH1 2WY 10 2013‑07 0
CH1 2WZ 10 0
CH1 2XA 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
CH1 2AR 4 Hunter␣Street w166805720 Empire␣Square
CH1 2AR 4 Hunter␣Street w973350844 Empire␣Square
CH1 2DJ 2 Grosvenor␣Road w306370142 Nuns␣Road
CH1 2DY 5 St␣Werburgh␣Street n6873844514 St.␣Werburgh␣Street
CH1 2HQ 11 Northgate␣Street n151214511
CH1 2LA 14 Watergate␣Street n6427526555 Watergate␣Row␣North
CH1 2LD 5 Watergate␣Row␣North n6432479444 Watergate␣Street␣North␣Row
CH1 2LD 5 Watergate␣Row␣North n4337327383 Watergate␣Street␣North␣Row
CH1 2LY 5 New␣Crane␣Street n6432734308 Nuns␣Road
CH1 2LY 5 New␣Crane␣Street w251213860 Watergate␣Square
CH1 2LY 5 New␣Crane␣Street n6432734309 Watergate␣Square
CH1 2LY 5 New␣Crane␣Street w507383600
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.