[Talk-ht] Fw: [CrisisMappers] Haiti: road obstruction locations

[80n]

On Wed, Feb 3, 2010 at 7:31 AM, Mikel Maron <mikel_maron at yahoo.com> wrote:

> Passing along this fairly urgent request for road obstruction data.
>
> * How complete is OSM data on road obstructions, based on latest available
> imagery?
> * Can anyone set up an extract on this feature type? (or general way to
> extract any feature type)
>

XAPI can be used to extract any feature type.

The following query will create an XML file of everything tagged with
barrier=obstacle in the Haiti area:

http://www.informationfreeway.org/api/0.6/*[bbox=-75,17.5,-71,20.2][barrier=obstacle]

Similar queries can be used for other tags impassible=yes, blocked=yes etc.

The data is normally very fresh, being just a couple of minutes behind the
main OSM database.

80n








> * The thread on CrisisMappers has more info on other sources of data, and
> new imagery coming out.
>
> -Mikel
>
> == Mikel Maron ==
> http://mapkibera.org/
> +254 (0) 724899738
> mikel at osmfoundation.org
>
>
> ----- Forwarded Message ----
> *From:* Nick McWilliam <nmcwilliam at mapaction.org>
> *To:* crisismappers at googlegroups.com
> *Cc:* supportbase at mapaction.org
> *Sent:* Wed, February 3, 2010 3:05:33 AM
> *Subject:* [CrisisMappers] Haiti: road obstruction locations
>
> Hi all -
>
> We've had a request from our field team for the most current data showing
> road obstructions, e.g. through landslides or fallen buildings, at a
> national level for Haiti. Ideally each location would be given a source and
> a date. Can anyone advise on the best place to look please?
>
> I've seen the obstacles layer here (http://haiti.openstreetmap.nl/) but
> don't know how to extract this as a data layer.
>
> BTW: this is where the value of good attribution/tags really shows; the
> developments here are very welcome:
> http://wiki.openstreetmap.org/wiki/Humanitarian_OSM_Tags
>
> I'd also like to say that our field team has been making much use of the
> excellent OSM roads data (via Geofabrik) for in situ mapping for SAR teams,
> UNOCHA, aid agencies and in responding to specific location requests - it's
> much appreciated on the ground.
>
> Thanks and best wishes,
> Nick.
>
> Nick McWilliam
> nmcwilliam at mapaction.org / skype nickmcw / +44 77 7379 7471
> www.mapaction.org / +44 1494 865 031
>
> -----Original Message-----
> From: crisismappers at googlegroups.com [mailto:
> crisismappers at googlegroups.com]
> On Behalf Of Jeffrey Johnson
> Sent: 19 January 2010 16:57
> To: crisismappers at googlegroups.com
> Subject: Re: [CrisisMappers] OpenStreetMap: What needs mapping?
>
> Obstructions are in a separate layer. Yellow x's in this app.
>
> http://haiti.openstreetmap.nl/
>
> See the link for the key in the lower left.
>
> Jeff
>
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