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OSM Postcode Mapping for TW1 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 %
TW1 4 170 168 20 11.9%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
TW1 4AA 10 0
TW1 4AD 10 0
TW1 4AE 10 0
TW1 4AF 10 Heath Road 1
TW1 4AG 10 0
TW1 4AJ 10 0
TW1 4AL 10 0
TW1 4AP 10 2020‑12 56 0
TW1 4AQ 10 0
TW1 4AS 10 0
TW1 4AT 10 0
TW1 4AW 10 Heath Road 5
TW1 4AX 10 0
TW1 4AZ 10 Heath Road 1
TW1 4BB 10 0
TW1 4BF 10 0
TW1 4BH 10 0
TW1 4BN 10 Heath Road 19
TW1 4BP 10 0
TW1 4BQ 10 0
TW1 4BW 10 Heath Road 25
TW1 4BX 10 Heath Road 7
TW1 4BY 10 0
TW1 4BZ 10 Heath Road 7
TW1 4DB 10 Heath Road 1
TW1 4DG 10 0
TW1 4DH 10 0
TW1 4DN 10 0
TW1 4DP 10 0
TW1 4DQ 10 0
TW1 4DR 10 0
TW1 4DS 10 0
TW1 4EA 10 Holly Road 1
TW1 4EG 10 0
TW1 4EN 10 0
TW1 4EQ 10 0
TW1 4ES 10 0
TW1 4ET 10 0
TW1 4EU 10 Queen's Road 1
TW1 4EX 10 0
TW1 4EY 10 0
TW1 4EZ 10 Station Road 1
TW1 4FD 10 2019‑01 56 0
TW1 4FF 10 0
TW1 4HB 10 0
TW1 4HD 10 0
TW1 4HE 10 0
TW1 4HF 10 0
TW1 4HG 10 0
TW1 4HH 10 0
TW1 4HJ 10 0
TW1 4HQ 10 0
TW1 4HR 10 0
TW1 4HS 10 0
TW1 4HT 10 0
TW1 4HU 10 0
TW1 4HW 10 0
TW1 4HX 10 0
TW1 4HY 10 0
TW1 4HZ 10 0
TW1 4JA 10 0
TW1 4JB 10 0
TW1 4JF 10 0
TW1 4JG 10 0
TW1 4JH 10 0
TW1 4JJ 10 2 0
TW1 4JP 10 Colne Road 1
TW1 4JQ 10 0
TW1 4JR 10 Colne Road 2 1
TW1 4JT 10 0
TW1 4JU 10 0
TW1 4JW 10 0
TW1 4JX 10 0
TW1 4JY 10 0
TW1 4JZ 10 0
TW1 4LA 10 0
TW1 4LE 10 0
TW1 4LG 10 0
TW1 4LJ 10 0
TW1 4LL 10 0
TW1 4LR 10 0
TW1 4LS 10 0
TW1 4LT 10 Clifden Road 1
TW1 4LU 10 0
TW1 4LX 10 0
TW1 4LY 10 0
TW1 4LZ 10 0
TW1 4NA 10 0
TW1 4NB 10 0
TW1 4ND 10 0
TW1 4NE 10 0
TW1 4NF 10 0
TW1 4NG 10 0
TW1 4NH 10 0
TW1 4NJ 10 0
TW1 4NL 10 0
TW1 4NQ 10 0
TW1 4PA 10 0
TW1 4PB 10 0
TW1 4PD 10 0
TW1 4PE 10 Tower Road 1
TW1 4PG 10 0
TW1 4PH 10 0
TW1 4PJ 10 0
TW1 4PL 10 0
TW1 4PP 10 0
TW1 4PQ 10 0
TW1 4PR 10 0
TW1 4PS 10 0
TW1 4PT 10 0
TW1 4PU 10 0
TW1 4PW 10 0
TW1 4PX 10 0
TW1 4PY 10 0
TW1 4PZ 10 0
TW1 4QA 10 0
TW1 4QB 10 0
TW1 4QD 10 0
TW1 4QG 10 Cross Deep 1
TW1 4QH 10 0
TW1 4QJ 10 Cross Deep 1
TW1 4QL 10 0
TW1 4QN 10 0
TW1 4QP 10 Cross Deep 1
TW1 4QQ 10 2020‑07 56 0
TW1 4QR 10 0
TW1 4QS 10 0
TW1 4QT 10 0
TW1 4QU 10 0
TW1 4QW 10 0
TW1 4QX 10 0
TW1 4QY 10 0
TW1 4QZ 10 0
TW1 4RA 10 0
TW1 4RB 10 Cross Deep 0
TW1 4RE 10 0
TW1 4RF 10 0
TW1 4RG 10 0
TW1 4RL 10 0
TW1 4RP 10 0
TW1 4RQ 10 0
TW1 4RT 10 0
TW1 4RU 10 0
TW1 4RX 10 0
TW1 4RY 10 0
TW1 4SB 10 0
TW1 4SD 10 0
TW1 4SE 10 0
TW1 4SF 10 0
TW1 4SG 10 0
TW1 4SH 10 0
TW1 4SJ 10 0
TW1 4SL 10 0
TW1 4SQ 10 0
TW1 4SR 10 0
TW1 4ST 10 0
TW1 4SU 10 0
TW1 4SW 10 0
TW1 4SX 10 Waldegrave Road 1
TW1 4SY 10 0
TW1 4SZ 10 0
TW1 4TA 10 0
TW1 4TB 10 0
TW1 4TD 10 0
TW1 4TE 10 0
TW1 4TF 10 0
TW1 4TG 10 0
TW1 4TH 10 0
TW1 4TJ 10 0
TW1 4TL 10 0
TW1 4TN 10 0
TW1 4TP 10 0
TW1 4TQ 10 Waldegrave Park 2
TW1 4TR 10 0
TW1 4TT 10 0
TW1 4UA 10 0
TW1 4WB 10 2019‑01 56 0
TW1 4WF 10 56 0
TW1 4XP 10 0
TW1 4XQ 10 2020‑12 56 0
TW1 4XY 10 2019‑01 56 0
TW1 4XZ 10 56 0
TW1 4YT 10 2019‑01 56 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
TW1 4AW 5 Heath␣Road w401767547 Twickenham
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.