On 16/06/19 22:53, Tobias Zwick wrote:
Okay, to wrap this up, I added this title in the wiki and referenced back to
this discussion, advising to not use lanes=0/1.5/none to signify no lane
markings but instead use something like lane_markings=no.
https://wiki.openstreetmap.org/wiki/Key:lanes#No_lane_markings
---
Additionally, I noted that after a similar discussion about lanes=1.5 in the
German forum in 2017, the wiki page was changed to stress that the lanes-key is
for *marked* traffic lanes. The change was announced on the Talk page and the
German forum discussion linked there.
I did not change the formulation back but only added the outcome of this
discussion to that topic on the Talk page because I do not feel legitimated to
do that as the 2017 wiki change was also done only after discussion in the
community, same as now:
https://wiki.openstreetmap.org/wiki/Talk:Key:lanes#No_centerline_-_one_or_two_lanes.3F
The community that decided that lanes must be marked in geography small and
probably failed to consider the rest of the world.
Fine for them to set 'rules' locally but that looks to be causing problems in
other parts of the world.
I have made comment on the discussion page.
https://wiki.openstreetmap.org/wiki/Talk:Key:lanes#Marked_or_unmarked_lanes
[1] https://forum.openstreetmap.org/viewtopic.php?pid=627975#p627975
On 15/06/2019 18:55, Martin Koppenhoefer wrote:
sent from a phone
On 15. Jun 2019, at 01:10, Joseph Eisenberg <joseph.eisenb...@gmail.com> wrote:
This requirement is fine for Europe, but the presence of lane markings
is not reliable in all of the world.
In developing countries, such as here in Indonesia, the presence of
painted lane markings is inconsistent. Often cheap pain is used
instead of more durable thermoplastic, so the markings only last a
year. After that the road still functions the same, even though the
markings are no longer visible.
There are also sections of primary or trunk road that are at least 6
or 7 meters wide and freshly painted, but have not yet been marked and
may not be for a number of years. I tag these as lanes=2 because the
road is clearly wide enough for two lanes.
And here in town the main road was recently marked with 2 lanes in
each direction, but before it already functioned as 4 lanes because
the width was sufficient.
While tagging the width is useful, I believe tagging the presence of
"de facto" lanes is reasonable in developing countries and places
where painted lane markings are not frequently used.
This description is a perfect fit for the situation in central Italy as well,
not having marked lanes can happen on 2+2 roads for years and for many
kilometers. Often there are lane markings for some part of the road while they
are missing on others. Generally they are aiming at having lanes, but it isn’t
pursued with high priority ;-)
I can understand the argument that lanes have to be painted in order to be
there, but it isn’t the reality I am observing.
We shouldn’t dismiss lane_markings=no as it can solve both cases: no lanes
marked but lanes=n is set, and no lanes tag set (confirmation the tag wasn’t
forgotten).
Cheers, Martin
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