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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 48259 41.8% 2014-11-24 00:00 UTC
OSM (with matching refs) 30672 26.6% 2014-11-24 00:00 UTC
Dracos 58591 50.7% 2014-11-24 10:43 UTC

Post Office Summary Statistics

Source Post Offices Percent Last Updated
Royal Mail List 10989   1970-01-01 00:00 UTC
OpenStreetMap 8055 73.3% 2014-11-19 00:00 UTC
OpenStreetMap (matched) 6888 62.7% 2014-11-19 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. SN12 12
2. RH4 10
3. RH11 7
4. NR28 5
5. LA23 5
6. NR25 5
7. M19 4
# Username Updates %Ref'd
1. Robert Whittaker 57 98%
2. tms13 33 30%
3. fitzsimons 10 90%
4. murble 9 89%
5. SpillerC 5 80%
6. Paul The Archivist 4 25%
7. ndm 3 100%

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

# District Updates
1. BS9 15
2. SN12 12
3. E3 11
4. RH4 10
5. B60 8
6. RH11 7
7. EX34 7
8. BD16 6
9. RH1 5
10. B95 5
11. LA23 5
12. NR25 5
13. NR28 5
14. CR0 5
# Username Updates %Ref'd
1. Robert Whittaker 111 86%
2. tms13 73 22%
3. Toffer12 43 72%
4. fitzsimons 33 79%
5. shirokazan 16 100%
6. mcld 15 100%
7. robbieonsea 13 100%
8. SomeoneElse 11 27%
9. Paul The Archivist 9 33%
10. murble 9 89%
11. ndm 8 88%
12. srbrook 8 100%
13. SpillerC 7 86%
14. wilpin 6 0%