Hi Marc,
I sometimes have to change the direction of a way when merging two of
them and when they are oriented in the opposite directions. I.e. when
two parts of the same road are mapped and I map the part in between, I
merge all of them when there's no reason not to. I don't know if it's
the best practice, but I'm sure I'm not the only one doing that.
Vojta
Dne 28. 3. 2017 v 8:05 Marc Gemis napsal(a):
What are good reasons to change the direction of a way ? Oneway comes
to mind, but is split way at stop sign, revert one arriving way,
change the oneway tag of tag a realistic scenario ? So you end up with
a oneway way that becomes a two-way road at the stop sign.
Are there other reasons to revert a the direction of part of a way ?
Until now I have not seen any real example from the opponents of the
direction tag on a node that shows the need for a relation because the
direction of the node is ambiguous.
All I have seen is "there is a theoretical possibility that..."
Please prove me wrong and show some real world example where it does not work.
(I do understand the need for a relation in case you have to stop
unless you turn to the right).
m.
On Mon, Mar 27, 2017 at 5:29 PM, Martin Koppenhoefer
<dieterdre...@gmail.com> wrote:
2017-03-27 16:34 GMT+02:00 Marc Gemis <marc.ge...@gmail.com>:
In the case you have added e.g. a stop sign on the way. A second
mapper comes in, splits the way on the stop sign, reverts the
direction of one of the spit parts. Now the node is at the end of 2
ways with different direction and one cannot know what is
forward/backward in that node. But any good editor can give a
warning/error for such a case.
yes, the editor can issue a warning, but what should be the reaction then?
Shall we discourage changing way directions because of a stop sign node on
this way? Usually there's a good reason for people changing way directions,
adding more complexity to these changes with highway signs depending on them
is not necessary.
Cheers,
Martin
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