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Post Hoc — Analysing OSM Postbox and Post Office Data in the UK

OpenStreetMap records the location of postboxes and Post Offices using the tags amenity=post_box and amenity=post_office respectively. The Post Hoc tool provides statistics, reports and maps to compare the data in OpenStreetMap with data from Royal Mail and from Matthew Somerville's former 'Locating Postboxes' webapp. The Royal Mail data comes from FOIA request and from the list of Post Office locations compiled by Edward Betts from Royal Mail's Post Office Branch Finder. For further information, please see the Technical Details page.

Postbox Summary Statistics

Source Postboxes Percent Last Updated
Royal Mail list 115485   2013-11-11 00:00 UTC
OSM 45934 39.8% 2014-04-21 00:00 UTC
OSM (with matching refs) 28427 24.6% 2014-04-21 00:00 UTC
Dracos 57565 49.8% 2014-04-21 18:21 UTC

Post Office Summary Statistics

Source Post Offices Percent Last Updated
Royal Mail List 10989   1970-01-01 00:00 UTC
OpenStreetMap 7910 72.0% 2014-04-21 00:00 UTC
OpenStreetMap (matched) 6791 61.8% 2014-04-21 00:00 UTC

General Postbox Reports

OSM Reference Issues
Results of various checks on the values in 'ref' fields of post box nodes on OpenStreetMap.
OSM Collection Times Issues
Postboxes with possible errors in the collection_times key.
OSM Royal Cypher Issues
Postboxes with possible errors in the royal_cypher key.
OSM Box Type Report
Report on usage of tags to describe box types.
OSM Operator Report
Report on usage of tags to describe the operator of the box.
OSM Tag Keys Report
List of all keys used on post box nodes, with their frequencies.
OSM Tag Lists
Various reports listing postboxes with specific tags defined:
Too Far Apart
List of box references found in both OSM and Dracos data, with positions that differ by a significant amount.

Local maps showing potential issues to survey

Generate a map showing possible issues with OSM postbox or post office data in a limited area. The area will be centred on the postcode entered, but may cover more or less than that postcode region. The data is fixed from the initial postcode, and so won't be reloaded as you move around the map, but if you click the 'permalink' the refreshed map will show data centred on the current location. Once on the map, you can also obtain a GPX file of the postbox issues for download, which may be useful to those wanting to survey the problems.

Enter first half of postcode:

New: OSM Progress by Postcode area

League Tables

Top postal districts and users by updates to post box nodes in last 7 days.

# District Updates
1. MK14 24
2. NG8 11
3. MK17 10
4. NG11 10
5. IP25 8
6. GL3 8
7. NG9 7
# Username Updates %Ref'd
1. will_p 45 98%
2. shirokazan 39 100%
3. Robert Whittaker 28 89%
4. b00m 18 89%
5. ndm 11 82%
6. eric_ 11 100%
7. Derick Rethans 10 100%

Top postal districts and users by updates to post box nodes in last 28 days.

# District Updates
1. NG9 70
2. NG10 55
3. MK14 24
4. NG11 21
5. NG8 19
6. NG7 19
7. AB24 16
8. MK17 15
9. NG1 12
10. BS7 9
11. IP25 8
12. GL3 8
13. EH12 7
14. MK6 7
# Username Updates %Ref'd
1. will_p 203 99%
2. Robert Whittaker 57 81%
3. shirokazan 51 100%
4. Derick Rethans 35 94%
5. ndm 25 92%
6. b00m 24 67%
7. neiljp 19 100%
8. robbieonsea 18 78%
9. SK53 17 100%
10. peter_james 13 69%
11. SomeoneElse 12 42%
12. brianboru 12 83%
13. drnoble 12 92%
14. mcld 12 83%