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OSM Postcode Mapping for TW18 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 %
TW18 4 189 185 30 16.2%

All units within this sector:

Unit PQI First Seen Last Seen Street Name ML Mapped
TW18 4AB 10 0
TW18 4AD 10 0
TW18 4AF 10 0
TW18 4AH 10 High Street 1
TW18 4AX 10 London Road 1
TW18 4BB 10 0
TW18 4BD 10 0
TW18 4BF 10 0
TW18 4BJ 10 Tillys Lane 2
TW18 4BL 10 Mustard Mill Road 6
TW18 4BN 10 0
TW18 4BP 10 0
TW18 4BQ 10 2013‑07 0
TW18 4BU 10 Clarence Street 1
TW18 4BW 10 0
TW18 4BY 10 0
TW18 4DA 10 0
TW18 4DE 10 0
TW18 4DF 10 0
TW18 4DJ 10 2013‑07 30 0
TW18 4DN 10 0
TW18 4DP 10 0
TW18 4DQ 10 0
TW18 4DR 10 0
TW18 4DY 10 High Street 4
TW18 4EA 10 0
TW18 4EE 10 High Street 5
TW18 4EJ 10 0
TW18 4EL 10 0
TW18 4EN 10 Church Street 1
TW18 4EP 10 Church Street 2
TW18 4EQ 10 0
TW18 4EW 10 0
TW18 4EX 10 London Road 1
TW18 4EY 10 High Street 1
TW18 4EZ 10 0
TW18 4FS 10 30 0
TW18 4GB 10 2013‑07 30 0
TW18 4GP 10 2018‑07 20 0
TW18 4GR 10 2013‑07 30 0
TW18 4HA 10 0
TW18 4HB 10 0
TW18 4HD 10 0
TW18 4HF 10 0
TW18 4HL 10 0
TW18 4HN 10 London Road 1
TW18 4HP 10 0
TW18 4HR 10 0
TW18 4HS 10 0
TW18 4HT 10 0
TW18 4HU 10 0
TW18 4HW 10 0
TW18 4HX 10 0
TW18 4HY 10 0
TW18 4HZ 10 0
TW18 4JB 10 0
TW18 4JD 10 2 0
TW18 4JG 10 Kingston Road 1
TW18 4JH 10 0
TW18 4JJ 10 0
TW18 4JL 10 0
TW18 4JN 10 0
TW18 4JQ 10 0
TW18 4JR 10 30 0
TW18 4JT 10 2 0
TW18 4JU 10 0
TW18 4JW 10 0
TW18 4JX 10 0
TW18 4JY 10 0
TW18 4JZ 10 0
TW18 4LA 10 0
TW18 4LB 10 0
TW18 4LD 10 0
TW18 4LG 10 0
TW18 4LH 10 0
TW18 4LN 10 2019‑07 0
TW18 4LP 10 0
TW18 4LQ 10 0
TW18 4LR 10 0
TW18 4LS 10 0
TW18 4LT 10 0
TW18 4LU 10 0
TW18 4LW 10 0
TW18 4LX 10 0
TW18 4LY 10 Station Approach 2
TW18 4LZ 10 0
TW18 4NA 10 0
TW18 4NB 10 0
TW18 4ND 10 0
TW18 4NE 10 0
TW18 4NF 10 0
TW18 4NG 10 0
TW18 4NH 10 0
TW18 4NJ 10 0
TW18 4NL 10 0
TW18 4NN 10 2013‑07 0
TW18 4NP 10 0
TW18 4NQ 10 0
TW18 4NR 10 0
TW18 4NS 10 0
TW18 4NT 10 0
TW18 4NU 10 0
TW18 4NW 10 0
TW18 4NX 10 Leacroft 1
TW18 4NZ 10 0
TW18 4PA 10 High Street 2
TW18 4PB 10 0
TW18 4PD 10 High Street 2
TW18 4PG 10 0
TW18 4PH 10 2020‑12 0
TW18 4PJ 10 High Street 0
TW18 4PN 10 2017‑01 0
TW18 4PP 10 0
TW18 4PQ 10 High Street 1
TW18 4PR 10 2 0
TW18 4PS 10 30 0
TW18 4PT 10 0
TW18 4PU 10 0
TW18 4PW 10 0
TW18 4QA 10 0
TW18 4QB 10 4
TW18 4QD 10 0
TW18 4QE 10 2 0
TW18 4QH 10 High Street 2
TW18 4QJ 10 0
TW18 4QL 10 0
TW18 4QN 10 0
TW18 4QP 10 2021‑09 2 0
TW18 4QR 10 0
TW18 4QS 10 2013‑07 30 0
TW18 4QU 10 0
TW18 4QW 10 0
TW18 4QX 10 Kingston Road 1
TW18 4QY 10 0
TW18 4QZ 10 2021‑09 2 0
TW18 4RH 10 0
TW18 4RJ 10 0
TW18 4RL 10 0
TW18 4RN 10 0
TW18 4RP 10 0
TW18 4RR 10 0
TW18 4RS 10 0
TW18 4RT 10 0
TW18 4RU 10 0
TW18 4RW 10 0
TW18 4RX 10 0
TW18 4RY 10 0
TW18 4RZ 10 0
TW18 4SD 10 Thames Street 1
TW18 4SG 10 0
TW18 4SH 10 0
TW18 4SJ 10 Thames Street 1
TW18 4SN 10 0
TW18 4SP 10 0
TW18 4SU 10 Clarence Street 1
TW18 4SW 10 0
TW18 4SY 10 0
TW18 4TA 10 0
TW18 4TB 10 0
TW18 4TD 10 0
TW18 4TG 10 Bridge Street 1
TW18 4TL 10 2013‑07 0
TW18 4TP 10 0
TW18 4TS 10 0
TW18 4TT 10 0
TW18 4TU 10 0
TW18 4TW 10 0
TW18 4TX 10 0
TW18 4TY 10 0
TW18 4TZ 10 0
TW18 4UA 10 0
TW18 4UD 10 2019‑12 0
TW18 4UP 10 Norris Road 2
TW18 4UQ 10 0
TW18 4US 10 0
TW18 4UW 10 Hale Street 1
TW18 4WA 10 0
TW18 4WB 10 Mustard Mill Road 4
TW18 4WS 10 2020‑12 20 0
TW18 4XE 10 0
TW18 4XF 10 30 0
TW18 4XH 10 0
TW18 4XJ 10 30 0
TW18 4XL 10 0
TW18 4XN 10 30 0
TW18 4XP 10 0
TW18 4XR 10 0
TW18 4XS 10 0
TW18 4XT 10 0
TW18 4XX 10 Vicarage Road 1
TW18 4XY 10 0
TW18 4XZ 10 Wraysbury Road 2
TW18 4YA 10 0
TW18 4YD 10 0
TW18 4YE 10 0
TW18 4YF 10 0
TW18 4YG 10 0
TW18 4YH 10 0
TW18 4YJ 10 0
TW18 4YN 10 0
TW18 4YP 10 0
TW18 4YR 10 0
TW18 4YT 10 0
TW18 4YU 10 0
TW18 4YW 10 0
TW18 4YX 10 0
TW18 4YY 10 0
TW18 4YZ 10 0
TW18 4ZB 10 0
TW18 4ZH 10 2013‑07 30 0
TW18 4ZX 10 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
TW18 4QB 4 w345732578
TW18 4QB 4 w345731286
TW18 4QB 4 w345732574
TW18 4QB 4 w345732577
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.