Mmmm not sure. There is obviously a line to be drawn between permanent
and transient but when it comes to roads or even certain POIs I think
there is a need for mapping the change. Last year, in Birmingham, when
they closed the main road tunnels that go under the city centre for a
number of months, the local OSM group marked the roads a closed.
Rightly so I feel.
However, we do need some way of tagging the Node where the interruption
of a Way exists with some indication that there is a temporary closure
specifying what, when, how, who and why! That way those systems that
don't care about transient closures can ignore it and map it as normal
but routing systems can take it into account.
If such a tagging scheme was agreed then it could apply in many
instances not just road closures.
Jonathan
http://bigfatfrog67.me
On 06/02/2014 14:46, Laurence Penney wrote:
Indeed this is surely the right approach. Many people use OSM inside products
where the map data is updated rarely: all the offline map apps for mobile come
to mind. Temporary states have no place in these apps, and it’s unfair on their
devs to force them to work out a long-term state to offer their users.
- L
On 6 Feb 2014, at 14:36, Andy Allan <[email protected]> wrote:
On 6 February 2014 09:43, David Earl <[email protected]> wrote:
I think it would be useful to have a means of indicating road closures etc
which are different from simply pretending the road doesn't exist or doesn't
allow certain users for a while.
I work on the principle of marking the "permanent state" of features,
as much as possible. Obviously everything changes, but if a situation
is deliberately temporary (e.g. a road closed for crane operations, or
for a fortnight for digging, etc) then I don't change the 'permanent
state' of the feature. We had a trunk road in Putney that was one-way
for three months, but I didn't change the map to correspond since it
was clearly not permanent. And I'd encourage people not to mark
flooding as natural=water, or removing bits of railway when they are
certainly going to repair it, or even adding "access=no" tags to
something that might be fixed by the weekend.
If it's deemed important by people to mark the "temporary state"
somehow, then please use a separate tagging system.
Cheers,
Andy
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