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

[Andrew Hain]

You mean downgrading the road on the map as part of a campaign to get the authorities to declassify it?

--
Andrew
________________________________
From: SK53 <sk53.osm at gmail.com>
Sent: 14 January 2023 13:51
To: Colin Smale <colin.smale at xs4all.nl>
Cc: Peter Neale via Talk-GB <talk-gb at openstreetmap.org>
Subject: Re: [Talk-GB] highway=primary cul-de-sac?

I think the relevant precedent is Oxford High Street<https://www.openstreetmap.org/#map=19/51.75263/-1.25310>.

Note, also that the opposite applies. Former A roads which have had the designation removed, but no changes at all to the actual road.(e.g. former A612
from Lowdham, through Southwell to Averham.

On Sat, 14 Jan 2023 at 11:17, Colin Smale <colin.smale at xs4all.nl<mailto:colin.smale at xs4all.nl>> wrote:
Even worse, in Scotland there are single-track roads with passing places that are A-roads. Should they be tagged as "unclassified" on the grounds of their width?
On 14/01/2023 10:36 CET Peter Neale via Talk-GB <talk-gb at openstreetmap.org<mailto: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<mailto: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<mailto: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official road classification where it is silly/outdated?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<mailto: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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