[HOT] Mapping in Dhaka, Bangladesh!

Pete Masters pedrito1414 at googlemail.com
Mon Jan 19 16:09:43 UTC 2015

Hello all,

Thanks for your efforts on the Missing Maps Bangladesh tasks - we already
have a pile of field data to go back in to OSM!

The tracing is really helping the volunteers here and so I just wanted to
update you.

TASK 838 is the priority. We will be mapping it from TOMORROW! So, if you
have a minute, every square will help ;)

We will be mapping south to north, so please do the same in the task.

TASK 831 will be afterwards and we have re-prioritised the areas of
interest having chatted with NGOs here. The far eastern tip is the
priority, after that following the spur of the river north west.

Thanks once again!


On Fri, Jan 16, 2015 at 12:52 AM, Jorieke Vyncke <jorieke.vyncke at gmail.com>

> Hi everybody,
> First of all thanks a lot for mapping in the Bangladesh tasks! It will be
> of great help!
> And indeed, I should have made it clearer in the presentation. I'll try to
> do a review tomorrow.
> In big follow the instructions of althio:
> for appartment and other large buildings --> * building=yes*
> for big individual trees which serve as landmark  -->  *natural=tree*
> but also bushes and a bunch of trees together which too serve as landmarks
> --> *natural=wood*
> for open areas it is okay to map --> *leisure=common*     * (but you can
> use also a landcover <http://wiki.openstreetmap.org/wiki/Landcover>tag for
> open areas like -->  natural=sand    or     landuse=grass)*
> Further remarks and clarification:
> - on buildings; indeed it would be good to collect the levels but don't
> put effort in it for now. We first need the base map of roads and big
> landmarks. This is essential to do mapping on the ground.
> - In this case building=construction is also not recommended. Every day
> things are changing here. Besides this, buildings under construction have
> often already inhabitants. Often they are just building one more floor on
> top of the existing building. (Think back to the catastrophe in Rana Plaza
> <http://en.wikipedia.org/wiki/2013_Savar_building_collapse>, you get
> buildings ready to collapes anytime by building like this...) So just stick
> with building=yes for now.
> - the leisure=common tag we try to adjust this one during the mapping on
> the ground
> If you need more clarifications, if you have questions or if you have
> ideas to make all this even more smoothly, please give us a sign!
> Best greetings,
> Jorieke
> 2015-01-15 16:48 GMT+06:00 althio althio <althio.forum at gmail.com>:
>> Hi Bouke Pieter,
>> I will try to answer and Jorieke may refine later on.
>> > For high (appartment)buildings I assume building=yes?
>> OK.
>> From the instructions tab: map landmarks, large buildings, not small ones
>> [tags]
>> building=yes for rectangular & round buildings - trace the building
>> outline
>> building=construction for walls without a roof
>> [note: I assume more refinement are possible as in
>> building=residential or building=apartments but this is hard to tell
>> from imagery and not requested in this project]
>> [note 2: To Jorieke; maybe request additional tag for large buildings
>> otherwise they will not stand out if small buildings are ever traced.
>> Maybe height=* or building:levels=* even if it is approximate. Anyway
>> I think this is valid for any mapping: building=yes/residential +
>> building:levels=6..8..10..12 + source:building:levels=estimate from
>> imagery]
>> [note 3: sometimes in other project, building=construction is not
>> encouraged because construction seen in imagery may well be finished
>> by now. So follow instructions project by project]
>> > Trees: natural=tree?
>> OK.
>> from the powerpoint: map BIG trees (because they are landmarks,
>> significant tree)
>> [tags]
>> natural=tree [I assume]
>> > But how to do an open area? area=yes?
>> No.
>> from the powerpoint: map open spaces
>> [tags]
>> leisure=common [I assume, as usual practice for HOT]
>> Cheers
>> althio
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*Pete Masters*
Missing Maps Project Coordinator
+44 7921 781 518

missingmaps.org <http://www.missingmaps.org/>

*@pedrito1414* <https://twitter.com/TheMissingMaps>
*@theMissingMaps* <https://twitter.com/TheMissingMaps>
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