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OSM Postcode Mapping for SL1 8 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 %
SL1 8 161 160 4 2.5%

All units within this sector:

Unit Street Name PQI ML Mapped
SL1 8AA 10 0
SL1 8AB 10 0
SL1 8AD 10 0
SL1 8AE 10 0
SL1 8AF 10 0
SL1 8AG 10 0
SL1 8AH 10 0
SL1 8AJ 10 0
SL1 8AL 10 0
SL1 8AN 10 0
SL1 8AP 10 0
SL1 8AQ 10 0
SL1 8AR 10 0
SL1 8AS 10 0
SL1 8AT 10 0
SL1 8AU 10 0
SL1 8AW 10 0
SL1 8AX 10 0
SL1 8AY 10 0
SL1 8AZ 10 0
SL1 8BA 10 0
SL1 8BD 10 0
SL1 8BE 10 0
SL1 8BF 10 0
SL1 8BG 10 0
SL1 8BH 10 0
SL1 8BJ 10 167 0
SL1 8BN 10 0
SL1 8BQ 10 0
SL1 8BS 10 0
SL1 8BT 10 0
SL1 8BU 10 0
SL1 8BW 10 0
SL1 8BX Jennery Lane 10 1
SL1 8BY 10 0
SL1 8BZ 10 0
SL1 8DA 10 0
SL1 8DB 10 167 0
SL1 8DD 10 0
SL1 8DE 10 0
SL1 8DF 10 0
SL1 8DG 10 0
SL1 8DH 10 0
SL1 8DL 10 0
SL1 8DN 10 0
SL1 8DP 10 0
SL1 8DR 10 0
SL1 8DS 10 0
SL1 8DT 10 0
SL1 8DU 10 0
SL1 8DW 10 0
SL1 8DX 10 0
SL1 8DY 10 0
SL1 8DZ 10 0
SL1 8EA 10 2 0
SL1 8EB 10 0
SL1 8ED 10 0
SL1 8EE 10 0
SL1 8EG 10 0
SL1 8EH 10 0
SL1 8EJ 10 0
SL1 8EL 10 0
SL1 8EN 10 0
SL1 8EQ 10 0
SL1 8ES 10 167 0
SL1 8ET 10 0
SL1 8EU 10 0
SL1 8EX 10 0
SL1 8EY 50 2 0
SL1 8EZ 10 0
SL1 8FA 10 0
SL1 8FB 10 0
SL1 8FD 10 0
SL1 8FE 50 0
SL1 8FF 10 2 0
SL1 8FG 50 2 0
SL1 8HA 10 0
SL1 8HB 10 0
SL1 8HD 10 0
SL1 8HE 10 0
SL1 8HF 10 0
SL1 8HG 10 0
SL1 8HH 10 0
SL1 8HJ 10 0
SL1 8HL 10 0
SL1 8HN 10 0
SL1 8HP 10 0
SL1 8HQ 10 0
SL1 8HR 10 0
SL1 8HS 10 0
SL1 8HT 10 0
SL1 8HU 10 0
SL1 8HW 10 0
SL1 8HX 10 0
SL1 8JD 10 0
SL1 8JE 10 0
SL1 8JF 10 0
SL1 8JG 10 0
SL1 8JH 10 0
SL1 8JJ 10 0
SL1 8JN 10 0
SL1 8JP 10 0
SL1 8JQ 10 0
SL1 8JR 10 0
SL1 8JT 10 0
SL1 8JU 10 0
SL1 8JW 10 0
SL1 8JX 10 0
SL1 8JY 10 0
SL1 8JZ 10 0
SL1 8LA 10 0
SL1 8LB 10 0
SL1 8LD 10 0
SL1 8LE 10 0
SL1 8LF 10 0
SL1 8LG 10 0
SL1 8LH 10 0
SL1 8LJ 10 0
SL1 8LN 10 0
SL1 8LP 10 0
SL1 8LQ 10 0
SL1 8LR 10 0
SL1 8LS 10 0
SL1 8LT 10 0
SL1 8LW 10 0
SL1 8NB 10 0
SL1 8ND 10 0
SL1 8NE 10 0
SL1 8NF 10 0
SL1 8NH 10 0
SL1 8NJ 10 0
SL1 8NN 10 0
SL1 8NP 10 0
SL1 8NR 10 0
SL1 8NS Taplow Common Road 10 1
SL1 8NT 10 0
SL1 8NU 10 0
SL1 8NW 10 0
SL1 8NX 10 0
SL1 8NY 10 0
SL1 8NZ 10 0
SL1 8PA 10 0
SL1 8PD 10 0
SL1 8PE 10 0
SL1 8PF 10 0
SL1 8PG 10 0
SL1 8PH 10 0
SL1 8PJ 10 0
SL1 8PL 10 1
SL1 8PN 10 0
SL1 8PP 10 0
SL1 8PQ 10 0
SL1 8PR 10 0
SL1 8PS 10 0
SL1 8PT 10 0
SL1 8PU 10 0
SL1 8PW 10 0
SL1 8PX 10 0
SL1 8PY 10 0
SL1 8PZ 10 0
SL1 8QA 10 0
SL1 8QB 10 0
SL1 8QD 10 1
SL1 8QE 10 0
SL1 8QG 10 0
SL1 8WD 10 167 0
SL1 8YA 10 167 0
SL1 8YB 10 167 0
SL1 8ZN 10 167 0

Units with street mismatches in this sector:

Unit Mapped Dominant Street OSM Object Tagged Street
SL1 8PL 1 w564299499
SL1 8QD 1 w338755886
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.