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OSM Postcode Mapping for LL55 3 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 %
LL55 3 123 123 16 13.0%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
LL55 3AA 10 0
LL55 3AB 10 0
LL55 3AD 10 3
LL55 3AE 10 0
LL55 3AF 10 Seion Terrace 6
LL55 3AG 10 0
LL55 3AH 10 0
LL55 3AL 10 0
LL55 3AN 10 0
LL55 3AP 10 0
LL55 3AR 10 1
LL55 3AS 10 0
LL55 3AW 10 0
LL55 3AX 50 0
LL55 3AY 10 0
LL55 3BA 10 0
LL55 3BB 10 0
LL55 3BD 10 0
LL55 3BE 10 0
LL55 3BL 10 0
LL55 3BN 10 0
LL55 3BP 10 0
LL55 3BS 10 0
LL55 3BT 10 0
LL55 3BU 10 0
LL55 3BW 10 1
LL55 3BY 10 0
LL55 3DA 10 Penisarwaun 1
LL55 3DB 10 0
LL55 3DD 10 0
LL55 3DE 10 0
LL55 3DF 10 0
LL55 3DG 10 0
LL55 3DH 10 0
LL55 3DL 10 0
LL55 3DN 10 0
LL55 3DP 10 0
LL55 3DR 10 0
LL55 3DS 10 0
LL55 3DT 10 0
LL55 3DU 10 0
LL55 3DW 10 0
LL55 3DY 10 0
LL55 3EA 10 0
LL55 3EB 10 0
LL55 3ED 10 0
LL55 3EE 10 0
LL55 3EF 10 0
LL55 3EG 10 Deiniolen, Llanberis 1
LL55 3EH 10 0
LL55 3EJ 10 0
LL55 3EL 10 0
LL55 3EN 10 0
LL55 3EP 10 2
LL55 3EQ 10 0
LL55 3ER 10 0
LL55 3ES 10 0
LL55 3ET 10 0
LL55 3EU 10 0
LL55 3EW 10 4
LL55 3EY 10 1
LL55 3EZ 10 0
LL55 3HA 10 0
LL55 3HB 10 0
LL55 3HD 10 0
LL55 3HE 10 0
LL55 3HG 10 0
LL55 3HH 10 0
LL55 3HL 10 0
LL55 3HN 10 0
LL55 3HP 10 0
LL55 3HR 10 0
LL55 3HS 10 Tai Caradog 15
LL55 3HT 10 Rhes Marian 32
LL55 3HU 10 0
LL55 3HW 10 0
LL55 3HX 10 0
LL55 3HY 10 0
LL55 3LA 10 0
LL55 3LB 10 0
LL55 3LD 10 0
LL55 3LE 10 0
LL55 3LF 10 0
LL55 3LG 10 0
LL55 3LH 10 0
LL55 3LJ 10 0
LL55 3LL 10 0
LL55 3LN 10 0
LL55 3LP 10 0
LL55 3LR 10 0
LL55 3LS 10 0
LL55 3LT 10 1
LL55 3LU 10 0
LL55 3LW 10 0
LL55 3LY 10 0
LL55 3NA 10 0
LL55 3NB 10 1
LL55 3ND 10 0
LL55 3NE 10 0
LL55 3NF 10 0
LL55 3NG 10 0
LL55 3NH 10 Penisarwaun 1
LL55 3NP 10 0
LL55 3NR 10 2
LL55 3NS 10 0
LL55 3NT 10 0
LL55 3NY 10 0
LL55 3PA 10 0
LL55 3PB 10 0
LL55 3PD 10 0
LL55 3PE 10 0
LL55 3PF 10 0
LL55 3PG 10 0
LL55 3PH 10 0
LL55 3PJ 10 0
LL55 3PL 10 0
LL55 3PN 10 0
LL55 3PP 10 0
LL55 3PR 10 0
LL55 3PS 10 Tyddyn Berth, Bethel 1
LL55 3PT 10 0
LL55 3PW 10 0
LL55 3UA 10 0
LL55 3XW 10 2018‑10 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
LL55 3AD 3 w314269789
LL55 3AD 3 w314269780
LL55 3AD 3 w314269781
LL55 3AR 1 w314269782
LL55 3BW 1 w398362796
LL55 3EP 2 w305245052
LL55 3EP 2 w305054143
LL55 3EW 4 w269604024
LL55 3EW 4 w267293664
LL55 3EW 4 w269604543
LL55 3EW 4 w267293686
LL55 3EY 1 n5075159637
LL55 3LT 1 w398364070
LL55 3NB 1 w268674613
LL55 3NR 2 w262398341
LL55 3NR 2 n930835948
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.