<div dir="ltr">There's an interesting issue in that there are a lot of arguments locally about whether there is any distinction at all between A roads, B roads and other roads (as the government are encouraging local authorities to close non A- and B- "residential" roads to through traffic). I did wonder whether this edit was to stick an oar into that argument which isn't what OSM is for. But then I didn't know whether there was a definitive answer.<div><br></div><div>The outcome of the modal filter between Felix and Alexandria Roads (and the short one way stretch), a "no right turn" from Argyle Road into Broadway, and a modal filter that used to be on the corner of Northfield Avenue and Leighton Road was that the Alexandria/Felix route was the shortest way for traffic southbound on Drayton Green Road to get to the roads southwest of Broadway/Drayton Green Road junction.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, 19 Aug 2021 at 18:35, Tom Hughes via Talk-GB <<a href="mailto:talk-gb@openstreetmap.org">talk-gb@openstreetmap.org</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">There is no such thing as a "C" road in many areas.<br>
<br>
Each local authority has it's own classification system<br>
for roads below the A/B level - some of those include a<br>
class known as C and some don't.<br>
<br>
OpenStreetMap does not use those local authority classes<br>
in any general way because they vary a lot from authority<br>
to authority in what they mean and how accessible the<br>
classifications even are.<br>
<br>
Tom<br>
<br>
On 19/08/2021 18:20, Chris Andrew wrote:<br>
> Steven, all,<br>
> <br>
> Is a Tertiary Road a 'C' road? This would be indicated on the local <br>
> Definitive Map (copyrighted?).<br>
> <br>
> Chris<br>
> chris_debian<br>
> <br>
> On Thu, 19 Aug 2021, 18:01 Steven Hirschorn, <<a href="mailto:steven.hirschorn@gmail.com" target="_blank">steven.hirschorn@gmail.com</a> <br>
> <mailto:<a href="mailto:steven.hirschorn@gmail.com" target="_blank">steven.hirschorn@gmail.com</a>>> wrote:<br>
> <br>
> Hi All,<br>
> <br>
> I have an OSMCha alert set up when people edit OSM in my area and<br>
> the other day someone changed the classification of a road from<br>
> tertiary to residential. Is there somewhere where this<br>
> classification is recorded officially, or is the distinction between<br>
> tertiary and residential in the UK sufficiently vague that a road<br>
> could be represented as either?<br>
> <br>
> Here's the changeset:<br>
> <a href="https://www.openstreetmap.org/changeset/109772829" rel="noreferrer" target="_blank">https://www.openstreetmap.org/changeset/109772829</a><br>
> <<a href="https://www.openstreetmap.org/changeset/109772829" rel="noreferrer" target="_blank">https://www.openstreetmap.org/changeset/109772829</a>><br>
> <br>
> Steven<br>
> _______________________________________________<br>
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> <a href="https://lists.openstreetmap.org/listinfo/talk-gb" rel="noreferrer" target="_blank">https://lists.openstreetmap.org/listinfo/talk-gb</a><br>
> <<a href="https://lists.openstreetmap.org/listinfo/talk-gb" rel="noreferrer" target="_blank">https://lists.openstreetmap.org/listinfo/talk-gb</a>><br>
> <br>
> <br>
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> <br>
<br>
<br>
-- <br>
Tom Hughes (<a href="mailto:tom@compton.nu" target="_blank">tom@compton.nu</a>)<br>
<a href="http://compton.nu/" rel="noreferrer" target="_blank">http://compton.nu/</a><br>
<br>
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</blockquote></div>