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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 47858 41.4% 2014-09-29 00:00 UTC
OSM (with matching refs) 30398 26.3% 2014-09-29 00:00 UTC
Dracos 58455 50.6% 2014-09-29 14:48 UTC

Post Office Summary Statistics

Source Post Offices Percent Last Updated
Royal Mail List 10989   1970-01-01 00:00 UTC
OpenStreetMap 8002 72.8% 2014-09-19 00:00 UTC
OpenStreetMap (matched) 6863 62.5% 2014-09-19 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. CA12 21
2. SO23 11
3. GU27 5
4. BS34 5
5. PE28 4
6. LE15 4
7. GU30 3
# Username Updates %Ref'd
1. robbieonsea 25 100%
2. shirokazan 24 100%
3. fitzsimons 11 82%
4. caranteth 11 100%
5. SK53 5 80%
6. ndm 5 100%
7. Robert Whittaker 4 50%

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

# District Updates
1. HP22 40
2. RH10 24
3. LN5 22
4. CA12 21
5. CV34 20
6. RG5 12
7. LN6 12
8. SO23 11
9. SG8 10
10. SE1 9
11. EH9 8
12. LE15 8
13. RH11 8
14. EH8 7
# Username Updates %Ref'd
1. Robert Whittaker 122 76%
2. shirokazan 64 100%
3. robbieonsea 58 91%
4. fitzsimons 53 91%
5. b00m 35 100%
6. tms13 24 42%
7. chillly 16 6%
8. plett 14 93%
9. SK53 11 73%
10. ndm 11 91%
11. caranteth 11 100%
12. eric_ 9 100%
13. mcld 9 89%
14. elbatrop 9 0%