[Tagging] Classifying roads from Trunk to Tertiary and Unclassified

Paul Allen pla16021 at gmail.com
Tue Aug 13 11:39:27 UTC 2019

On Tue, 13 Aug 2019 at 09:28, Martin Koppenhoefer <dieterdreist at gmail.com>

> Sometimes it won’t help if this can only be one road, because for example
> a primary road could dissolve into several secondary roads (or can’t it?).

Town or city on the coast with only one primary road leading to it.
Secondary roads connect it
to nearby villages which have no other primary or secondary road to them.
Fan-out like
this is possible.

Better to avoid the computational complexity of figuring out which
primaries are or are not
terminal and just show all primaries.  After all, somebody looking at the
map may be trying
to find a primary route linking two terminal settlements.  So not only is
it computationally
difficult to strip out terminal primaries, it's unhelpful.  Those routes
are primaries for
several reasons, but one of those reasons is that people wish to go to the
places they
connect to, even locations at the end of a primary.

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