[Talk-GB] Somerset Levels Flooding

[Tom Chance]

There were some attempts to develop tags that would indicate when features
should be considered closed/inaccessible, e.g. this proposal that
foundered: http://wiki.openstreetmap.org/wiki/Proposed_features/temporary

We do have more accepted tags for roads that are proposed and being built:
http://wiki.openstreetmap.org/wiki/Key:proposed
http://wiki.openstreetmap.org/wiki/Key:construction

This must have come up in the Humanitarian team. What do they do?

Regards,
Tom


On 6 February 2014 15:30, Jonathan <bigfatfrog67 at gmail.com> wrote:

> 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 <gravitystorm at gmail.com> wrote:
>>>
>>>  On 6 February 2014 09:43, David Earl <david at frankieandshadow.com>
>>>> 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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-- 
http://tom.acrewoods.net   http://twitter.com/tom_chance
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