Changeset: 118708720
Add/update FHRS IDs
Closed by Robert Whittaker
Tags
created_by | JOSM/1.5 (18387 en_GB) |
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source | FSA Food Hygiene Ratings Database |
Discussion
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Comment from confusedbuffalo
Hi, I'm not sure what you were using to do the matching here, but something has gone a bit wrong.
e.g. https://www.openstreetmap.org/node/306487035 which has fhrs:id=1473267 but should link to https://ratings.food.gov.uk/business/en-GB/1472655There's something similar for a lot of objects in Cambridge, and not just in this changeset.
https://gregrs.dev.openstreetmap.org/fhodot/?lat=52.20582&lon=0.12772&zoom=13&layer=fhrs
A lot of the red dots are from issues like this.
Using OSMCha these seem to be the changesets from that session, which include the affected elements (I'm not sure if every element is mismatched or not).
https://www.openstreetmap.org/changeset/118673427
https://www.openstreetmap.org/changeset/118565161
https://www.openstreetmap.org/changeset/118565001
https://www.openstreetmap.org/changeset/118315177
https://www.openstreetmap.org/changeset/118314501
https://www.openstreetmap.org/changeset/118276178
https://www.openstreetmap.org/changeset/118275973 -
Comment from Robert Whittaker
Hmmm. I was using Greg's FHRS tool, with the automated JOSM links. So I think when I added those FHRS ID's they would have been correct.
If you go to https://gregrs.dev.openstreetmap.org/fhodot/?lat=52.13146&lon=0.18814&zoom=9&layer=fhrs and click on the Cambridge City polygon on the map, it will load a graph of matches against time. In March 2020, you'll see a drop in the green matches (which was caused by the Council switching to some new software and assigning new numbers -- see the 18th Feb item at https://ratings.food.gov.uk/Status ). It then bounces back, which would be me updating most of the entries. Then shortly afterwards the pink block of mismatches appears. This is presumably caused by the assigned IDs changing internally for some reason.
See https://www.whatdotheyknow.com/request/food_hygiene_rating_scheme_data for details of how the IDs are assigned by the FSA. I guess either Cambridge City Council's software as mixed up the IDs they assign, or the FSA has done the same with the mapping from the Council's IDs to the ones they issue. Either way, it's a pain for OSM if the ID's aren't stable, immutable, and non-reusable. I'll see if either Greg RS, or the FSA have any insight into what's happened here.
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Comment from gregrs
Looking at the stats collected by FHODOT, lots of FHRS IDs changed on 7th March as per the FSA announcement, and were gradually corrected until 21st March. Then on 28th March a lot of OSM objects (c. 300) went from being matched with the same postcode to matched with different postcodes.
I'm afraid I can't shed any more light on what could have caused this final change but it looks like the FHRS IDs were shuffled around rather than new, previously unused IDs being assigned, which seems odd. Hopefully the FSA might be able to help.
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Comment from Robert Whittaker
I've heard back from the FSA, who've been in touch with the City Council. Apparently, the Council made an error in their upload, which caused some of the ID's to be suhffled. They've now uploaded a corrected version to the FSA. Hopefully this means that the FSA data will revert to the IDs I added by tomorrow, and then the FHODOT tool will update too.
- Tesco (3875404), v19
- ALDI (3875475), v14
- The Cambridge Care Home (27925538), v8
- The Petersfield (37800469), v11
- Boots (42232563), v16
- Cambridge Grillerz (52115599), v11
- Dobblers Inn (52115600), v9
- Langdon House (60544154), v6
- The Geldart (67665889), v9
- Cambridge Manor Care Home (96443924), v7
- Old Spring (110256313), v10
- Corner House (118943808), v7
- McDonald's (122821758), v10
- Area Cafe (127812950), v9
- Sir Isaac Newton (127812957), v4
- The Haymakers (131306510), v15
- Kingston Arms (134125339), v14
- Desi Grill (135760622), v9
- A J Bargain Centre (135919625), v5
- Mace (135922252), v6
- Cambridge Blue (20826694), v10
- The Waterman (20940218), v12
- The Punter (20940220), v7
- Gourmet House (20940247), v13
- Carpenters Arms (20940431), v10
- Green Dragon (21137287), v8
- The Grapes (21591707), v7
- Tandoori Palace (21591797), v11
- The Mermaid (269763272), v8
- Tesco Express (269763273), v17
- Spar (295531096), v14
- Stir (295797100), v13
- Grill Brothers (303605317), v7
- St. John's Chop House (306486815), v14
- Maharajah (306487035), v10
- Pakka (306487507), v10
- Colala (306490124), v10
- Café Bread & Butter (306490338), v8
- Four Seasons (306490504), v8
- Renu's (306490717), v8
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