The description doesn't work as a definition: "Generally for access to a
building, service station, beach, campsite, industrial estate, business
park, etc. This is also commonly used for access to parking, driveways,
and alleys."
A dead-end public road to a facility (called "service road"?) should
obviously be mapped as "unclassified", but this road also fits the
description of "service".
We need some wording about "private" or "public" such as the suggestion
by Stevea:
> "unclassified" roads, as a "real legal roads" are "in public," and
subject to traffic rules/laws/ordinances, and
>
> "service" roads, as "private driveways, parking lot aisles and other
roads not in the public grid of road network" are "on private property"
and not (as) subject to traffic rules/laws/ordinances
There are roads used like public roads even though they are on private
land (at least in Japan). This should be "unclassified". That is, we
cannot simply use "is it on public or private land" to distinguish
between "unclassified" and "service". In other words,
highway=unclassified + access=private is not highway=service.
Another issue with "service" is service=alley. Physically narrow roads
(car cannot pass) that are legally the same as normal public roads are
sometimes tagged as highway=service + service=alley because it renders
thin on the map. These roads are still a part of road networks for
foot/bicycle/motorcycles, so they logically should be tagged as
highway=unclassified + width=* (motorcar=no cannot be used because not a
legal restriction?) or highway=path + mofa/moped/motorcycle=yes.
Anyway, I think the definitions both of highway=service and service=*
should be refined.
gyotoku810
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