[Tagging] Ferry routes as relations?

Joseph Eisenberg joseph.eisenberg at gmail.com
Sun Mar 24 02:11:21 UTC 2019

What is the benefit of including the ferry building polygon in the
relation? This is the part that Indknt understand. What is the use case for
including this info in the relation?


On Sun, Mar 24, 2019 at 10:40 AM marc marc <marc_marc_irc at hotmail.com>

> Le 24.03.19 à 00:19, Joseph Eisenberg a écrit :
> > it is not clear what should be included in the relation.
> > Certainly the ways in the relation should connect one pier
> > to another, so that routing works properly.
> as for other PT relation, it may include :
> - way(s) (without role) where the ferry is driving
> - platform where passenger wait the ferry (pier or building, that's the
> issue.. if you look at bus relation, does passenger wait on the pier ?
> some pier are only used temporarily to reach the boat, other are used as
> a waiting area and the building if more a "service area" (ticket sales,
> information, coffee, toilet)
> - stop_position where the ferry stop to allow passenger to jump in
> some will argue that you can guess one of the two when you have the
> other (the passenger waiting area is not far from the ferry stop position)
> > Tagging a way that is not part of the ferry route as route=ferry is an
> > issue for map users that assume that these ways are part of the actual
> > path of the ferry
> it's a subject that comes up regularly.
> some data users would like some objects to be described only
> with a node because they don't need more and/or beucase some apps
> bug/fail with way or MPs, while other contributors transform
> the node into way or area to add the extent of the object.
> wanting to restrict the accuracy that some add is in my opinion
> a lost cause.
> so it's better to fix app that make false assumption
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