On 2015-10-08 04:12, Clifford Snow wrote:
I'm trying to add my first bus route. I'm struggling to understand how
to properly add the relation. The route, like most bus routes, loops
back over the same ways. So my questions:
If the bus travels over the same way going two different directions,
is the way added twice to the relationship, which means ignoring the
JOSM warning message? Or is the way only entered once with just no
forward/backward direction?
Are there any good tutorials to add bus routes?
Have you read http://wiki.openstreetmap.org/wiki/Buses ,
http://wiki.openstreetmap.org/wiki/Public_transport#Buses and
http://wiki.openstreetmap.org/wiki/Proposed_features/Public_Transport
(which I think should be featured more officially, not in a proposed
features page)?
The way I do it (and in no way am I saying it is the only way or the
correct way to do it, but it seems to hold up fine) is make one relation
for each seperate destination (usually two: a->b and b->a, sometimes 4:
a->c->b, a->d->b, b->c->a and b->d->a) and group those relations in a
master relation. The master relations get grouped in a (master-master)
relation that holds all buslines for one concession.
Each bus relation has all the ways the bus traverses, and if it
doublebacks on itself somewhere, I add the way twice. JOSM will
highlight those ways in red in the relation editor, is that the warning
you describe?
Then add all the stops in correct order with role "stop". If you order
the ways and nodes in the relation editor, JOSM will put the stops
first.
I believe officially you should only add nodes with
"public_transport=stop_position", but in absence of those I also add
"highway=bus_stop" (or even tag those with
"public_transport=stop_position" which is not entirely correct).
As an example, see https://www.openstreetmap.org/relation/398909
Regards,
Maarten
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