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

[Steven Hirschorn]

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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