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OSM Postcode Mapping for L1 1 Postal Sector

The circles on the map above are the postcode unit 'centriods' from Code-Point Open, 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 data may be freely used in OpenStreetMap, with the suggested source tag code-point_open

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. Only those points with a codepoint PQI less than or equal to 40 are show in 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 %
L1 1 75 75 12 16.0%

All units within this sector:

Unit Street Name PQI ML Mapped
L1 1AH 10 3 0
L1 1DA 10 0
L1 1DE 10 0
L1 1DF 10 0
L1 1DG 10 0
L1 1DJ 10 0
L1 1DN 10 0
L1 1DP Clayton Square 10 1
L1 1DQ 10 0
L1 1DS Tarleton Street 10 1
L1 1EB Williamson Street 10 1
L1 1ED 10 0
L1 1EE 10 0
L1 1EF 10 0
L1 1EJ 10 2 0
L1 1EL 10 0
L1 1EP 10 0
L1 1EQ Williamson Square 10 1
L1 1FS 10 0
L1 1HF St Johns Lane 10 2
L1 1HL 10 0
L1 1HQ 10 0
L1 1HU 10 0
L1 1HW 10 0
L1 1JA Pudsey Street 10 1
L1 1JD Lime Street 10 3
L1 1JE Lime Street 10 1
L1 1JF 10 3 0
L1 1JJ 10 0
L1 1JN 10 0
L1 1JP 10 0
L1 1JQ 10 0
L1 1JR Ranelagh House 10 2
L1 1JT 10 0
L1 1JW 10 0
L1 1LD 10 0
L1 1LE 10 0
L1 1LG 10 0
L1 1LH 10 2 0
L1 1LJ 10 2 0
L1 1LL 10 2 0
L1 1LN 10 0
L1 1LP 10 0
L1 1LQ 10 0
L1 1LR 10 0
L1 1LS 10 0
L1 1LT 10 0
L1 1LU 10 0
L1 1LW 10 0
L1 1LX 10 0
L1 1LY 10 0
L1 1LZ 10 0
L1 1NA 10 0
L1 1NB 10 0
L1 1ND 10 0
L1 1NE 10 0
L1 1NG 10 0
L1 1NH 10 0
L1 1NN 10 2 0
L1 1NP 10 2 0
L1 1NQ 10 0
L1 1NT 10 0
L1 1NU 10 0
L1 1NW 10 0
L1 1NY 10 0
L1 1PW 10 2 0
L1 1QE 10 0
L1 1QR 10 0
L1 1QY 10 0
L1 1RD 10 0
L1 1RG 10 0
L1 1RH Queen's Square 10 1
L1 1RJ Lime Street 10 1
L1 1RL 10 2 2
L1 1RQ 10 3 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
L1 1HF 2 St␣Johns␣Lane n1241183538 Saint␣John's␣Lane
L1 1JD 3 Lime␣Street n6120201604
L1 1JD 3 Lime␣Street n681268201 Liverpool␣Lime␣Street
L1 1JR 2 Ranelagh␣House n5613088572 Ranelagh␣Street
L1 1RL 2 w263976418
L1 1RL 2 w204479301
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.