[Talk-GB] highway=primary cul-de-sac?

[Edward Catmur]

There are roads that continue by another form of transport, such as the
Woolwich ferry.

And "temporary" interruptions like at Hammersmith Bridge.

On Sat, 14 Jan 2023, 09:40 Peter Neale via Talk-GB, <
talk-gb at openstreetmap.org> wrote:

> Just to say; there are LOTS of single-carriageway A roads in the UK.
>
> Also, I can see that, at the edges of the Primary road network, a junction
> might have one "primary" road, linked to several (or 2?) tertiary roads.
> That would seem logically reasonable to me.  However, I would struggle to
> understand a "primary" road that is a true cul-de-sac, with no exit,
> whatever designation the relevant authority migh assign.
>
> Regards,
> PeterPan99
>
>
> On Saturday, 14 January 2023 at 08:55:57 GMT, Steven Hirschorn <
> steven.hirschorn at gmail.com> wrote:
>
>
> That's the thing - when I imagine an A road I imagine a road with probably
> two lanes in each direction, and a central reservation, but I know that
> many don't have those features.
>
> Someone must be able to query OSM for primary roads that reach a node with
> no further motor vehicles access to see how common it is?!
>
> On Sat, 14 Jan 2023, 07:13 Mateusz Konieczny via Talk-GB, <
> talk-gb at openstreetmap.org> wrote:
>
> For me it is definitely not highway=primary, though if it is officially
> classified
> as primary road in official designation data for UK that makes it a bit
> tricky.
>
> Is it fine, also in UK that gave origin to main highway=* values, to ignore
> official road classification where it is silly/outdated?
>
> Poland has relatively highly classified road that is 55m meter long and
> leads to
> an abandoned railway station (
> https://www.openstreetmap.org/way/264203873/history )
> https://pl.wikipedia.org/wiki/Droga_wojew%C3%B3dzka_nr_219
>
> Also from Poland:
>
> National road 58: https://wiki.openstreetmap.org/wiki/File:Jedwabno.JPG
> National road 90 in 2010:
> https://wiki.openstreetmap.org/wiki/File:Korzeniewo12.JPG
> (yes, ferry crossing)
> National road 90 in 2013:
> https://commons.wikimedia.org/wiki/File:Kwidzyn_most.JPG
> (rerouted a bit, old ferry was abandoned)
> National road 81:
> https://wiki.openstreetmap.org/wiki/File:Miko%C5%82ow_-_DK81.JPG
>
> Obviously, not all of them are classified in the same way.
>
> (it is explicitly documented at
> https://wiki.openstreetmap.org/wiki/Drogi#Klasyfikacja_dr%C3%B3g as it is
> common
> mistake by newbies to reclassify sandy road across forest because it is
> officialy
> classified as something)
>
> Jan 13, 2023, 23:12 by steven.hirschorn at gmail.com:
>
> I thought this was interesting: I noticed that a couple of mappers have
> different opinions about whether a road in OSM should be marked as
> "primary" or "tertiary". The road is still apparently designated the A3000,
> though Hounslow Council/TfL have also designated it a section of the route
> of Cycleway C9, and the last 300 metres are now a cul-de-sac (at least for
> cars travelling westbound, there's a modal filter at the end so
> pedestrians, cyclists et al can continue onward and there's also the
> one-way Clarence Road which allows cars to join Wellesley Road eastbound)
>
> So is it still a primary road because of the designation? Can a primary
> road be a cul-de-sac? Aren't they usually roads designed to be a core route
> of the road network?
>
> I'd argue that if anything, from a motor vehicle perspective, it's become
> "residential" rather than "tertiary"...
>
> https://www.openstreetmap.org/changeset/131241784
>
>
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