[HOT] Fwd: Accuracy ( international women's day)

[Gertrude Hope]

Hi Geof,
What was their worry is that, if what we are using is not so accurate, They
will end up tracing a person's toilet or water tap in a different compound.

Gertrude
On Mar 1, 2016 1:05 AM, "Geoffrey Kateregga" <kateregga1 at gmail.com> wrote:

> Hi Trudy,
>
> Thanks for the work done so far in building an OSM community in Zambia,
> I can also share with you my experience in using OSMTracker, GPS units and
> field papers from our mapping under "Ramani Huria" in Dar es Salaam.
>
> The accuracy of OSMTracker improves when you have an internet connection
> and it can go as high as 3m or less, it is necessary to check the level of
> accuracy when picking a way point. What usually helps is when you import
> the track and waypoints into JOSM, then you can place the nodes more
> accurately by looking at the imagery.
>
> Using Fieldpapers with Bing imagery may not be very helpful in informal
> settlements where the houses are very close to each other, locating where
> you are on the fieldpaper when in the field maybe challenging. If you can
> afford it, acquiring several Garmin etrex 20 or 30 GPS units will prove
> useful.
>
> Regards,
>
> Geoffrey.
>
> On Tue, Mar 1, 2016 at 1:35 AM, Gertrude Hope <trudyhope7 at gmail.com>
> wrote:
>
>> Thank you Chris
>>
>> Gertrude
>> On Mar 1, 2016 12:33 AM, "Chris Fleming" <me at chrisfleming.org> wrote:
>>
>>> Blake has mostly covered it. But worth saying explicitly, if we assume
>>> that the best you're going to get on a GPS is 5m, but your concern is that
>>> you're mapping things that are much closer together - then the solution is
>>> to combine the GPS and paper based approach. The important thing from a
>>> navigation point of view is getting the relevant features correctly placed
>>> reactive to each other.
>>>
>>> What you will find is that the combination of airial/gps and survey data
>>> will bring the accuracy down. But ultimately, relative postition is the key.
>>>
>>> Cheers
>>> Chris
>>>
>>> On Mon, 29 Feb 2016 at 17:43 Gertrude Hope <trudyhope7 at gmail.com> wrote:
>>>
>>>> Hi Blake,
>>>> Thank you so much for The information.
>>>> On Feb 29, 2016 7:31 PM, "Blake Girardot" <bgirardot at gmail.com> wrote:
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