On Mon, 12 Aug 2019 at 17:27, Joseph Eisenberg <joseph.eisenb...@gmail.com>
wrote:

> So to put it together
>
> 0) Motorway
> 1) Trunk - national roads; the main roads that connect provinces to
> other provinces and cities to other cities. Start/end at cities.
> 2) Primary - main road that connect districts (the level below
> provinces) to other districts, and towns to other towns and cities.
> Start/end at towns (or cities).
> 3) Secondary - connect sub-districts to others, and villages to larger
> towns, by connecting to a primary road at some point. Not the main
> route in a district.
> 4) Tertiary - connect villages and hamelts to other villages, and
> connect to a secondary (or primary) road. Not the main route in a
> subdistrict.
> 5) Unclassified - connects hamlets and isolated dwellings to villages
> and larger areas, by connecting to a tertiary, secondary or primary
> road. Never a major through-route.
>

Looks sensible and usable to me.  Although looking at your changeset
comments
your fellow mappers seem to think that a couple of houses along a road make
it
a residential road.  Here are some examples you might wish to show them to
make
a point...

Here are a couple of houses along the A487 (the trunk road linking
Fishguard to Bangor, mostly
single carriageway with short sections of dual carriageway such as the
Cardigan bypass):
https://www.openstreetmap.org/?mlat=52.10448&mlon=-4.59910#map=19/52.10448/-4.59910

Here's the same A487 passing through the hamlet of Blaenannerch:
https://www.openstreetmap.org/?mlat=52.11214&mlon=-4.56329#map=17/52.11214/-4.56329

Here's the same A487 passing through the town of Aberaeron:
https://www.openstreetmap.org/?mlat=52.2418&mlon=-4.2608#map=16/52.2418/-4.2608

Here's the same A487 passing through the city of Aberystwyth:
https://www.openstreetmap.org/?mlat=52.4169&mlon=-4.0730#map=14/52.4169/-4.0730

Having such a route switch from being a trunk road to a residential every
time there were
a few houses (or even a lot of houses) would not be very helpful to
somebody trying to
plan a journey from Fishguard to Bangor.  It would certainly make it a lot
harder to figure
out, in advance, how you'd traverse Aberystwyth.

-- 
Paul
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