<div dir="ltr"><div>These toids are for the name rather than the physical street - I'm not interested in toids in general. It is their potential utility in disambiguating streets which I'm interested in (although as the Derby Road case I cited is one I'm particularly interested in - it splits multiple times, has dual carriageway sections, residential service roads, and even has a residential service road with a <a href="https://www.openstreetmap.org/way/6638464#map=17/52.94433/-1.19583">different name</a> but addresses belong to the main road - is not split on historical boundaries not quite as useful as I hoped). Where there is contiguity of the road segments they can be merged on name alone, but where they are splits - not just roundabouts - it can be harder to automatically merge the correct elements. Other examples might be Denman Street in <a href="https://www.openstreetmap.org/#map=16/52.9575/-1.1740">Radford</a> & Alfred Street in <a href="https://www.openstreetmap.org/#map=17/52.96216/-1.14852">St Ann's</a> both split into many sections by 1970s re-development. House numbers continue to reflect that these were once a single street even if the individual sections have extension names (I presume the street name toids are different in these cases).</div><div><br></div><div>Wrt to UPRNs not referring to streets. This <a href="https://www.openstreetmap.org/#map=17/52.96216/-1.14852">location</a> on Robert's site shows several UPRNs on streets:</div><div><ul><li>10009154384 on Averton Square</li><li>
10009156248 at start of Longore Square</li><li>
10009156248 at E end of Fairham Drive</li></ul><div>The other non-building UPRNs are the substation in Orston Spinney (verified as also present in the Asset Register open data) and the secret allotments (possibly disused or sold as no-longer in the Asset Register) behind Averton Square.</div><div><br></div><div>The land was in medieval times part of the open field system of Sutton Passeys, a village deserted by the 16th century. It was emparked by the Willoughby family around 1580 when Wollaton Hall was built, and enclosed by a wall by Lord Middleton early in the 19th century (part of his defences against Luddites & others). The land was acquired by Nottingham Council <a href="https://www.lentontimes.co.uk/back_issues/issue_1/issue_01_01.htm">in the early 1920s</a> when they built the current housing estate. There is an Elizabethan mining adit or sough built to drain the <a href="http://www.healeyhero.co.uk/rescue/individual/Bob_Bradley/Bk-1/1500.html">Willoughby collieries</a> at Wollaton running somewhere in the vicinity, but other than that no historical properties in the lifetime of the Ordnance Survey.</div><div><br></div><div>I therefore think these UPRNs must refer to the roads. <br></div><div><br></div><div>Jerry<br></div></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 13 Aug 2020 at 11:26, Robert Whittaker (OSM lists) <<a href="mailto:robert.whittaker%2Bosm@gmail.com">robert.whittaker+osm@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">On Wed, 12 Aug 2020 at 16:56, SK53 <<a href="mailto:sk53.osm@gmail.com" target="_blank">sk53.osm@gmail.com</a>> wrote:<br>
> OpenRoads from the Ordnance Survey contains a field containing the toid for the street name. I wonder if we should include these alongside usrn & uprn. They may be more useful than either for gathering complex roads which share a name.<br>
<br>
I'd tend to see the TOIDs are just an internal ID used in OS MasterMap<br>
and not something that there's much value in adding to OSM. I'd have<br>
thought that that USRN should be a sufficient unique reference number<br>
for highways. (Everything in OS MasterMap has a TOID, and actually I<br>
think streets have two -- one for the centreline geometry, and one for<br>
the bounding polygon. If we start adding TOIDs for streets, where<br>
would we stop?)<br>
<br>
However, from a practical point of view, if you want to check OSM for<br>
completeness against OS Open Roads, then having the TOID in OSM would<br>
be useful. But perhaps a better solution would be to persuade OS that<br>
they should be including the USRNs in OS Open Roads -- as these are<br>
now the promoted 'gold standard' open unique identifiers for streets.<br>
<br>
Robert.<br>
<br>
-- <br>
Robert Whittaker<br>
<br>
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