[Tagging] bus route with reversing

LeTopographeFou letopographefou at gmail.com
Fri Sep 2 21:32:45 UTC 2016


Hi,

When I add a way/node which has already been added in a relation JOSM 
warn me and ask me to confirm or to cancel. So there is no issue with 
JOSM, or at least with the actual revision, to add more than once a 
way/node in a relation.

AFAIK order of members of type "way" in a relation of type route doesn't 
matter. The wiki states only that the stops should be ordered (a 
'should', not a 'shall'). But I think that to order the ways is a good 
practice and should be recommended also. Moreover nothing is stating 
that stops should be gathered in the relation or placed between the two 
ways it is linked to.

Finally, you can put "forward" and "backward" as roles of the ways to 
specify which way the route is taking. This is even more usefull when a 
way is added twice because the bus has to reverse. Please note that 
there is also forward:stop and backward:stop 
(http://wiki.openstreetmap.org/wiki/Relation:route#Members).

LeTopographeFou

Le 02/09/2016 à 23:11, Svavar Kjarrval a écrit :
> On fös 2.sep 2016 20:54, André Pirard wrote:
>> On 2016-09-02 22:20, Svavar Kjarrval wrote:
>>>   JOSM doesn't allow the user to add any repeats at all. Fortunately, it
>>> doesn't remove repeats which were already there.
>> I was showing nodes and Jo is showing ways.
>> Repeating nodes is not allowed but repeating ways is all-right.
> My statement applies, in my experience, also to ways. I haven't been
> able to add duplicate ways to relations for a long time (it was possible
> once but later disabled). It's been causing a lot of holes in the local
> bus relations since some of them go from A to B, circle around a
> neighbourhood until they return to B, and then go back to A. In some of
> those cases, being able to add duplicate nodes is essential for the bus
> route in OSM to reflect the actual one.
>
> - Svavar Kjarrval
>
>
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