Re: [Talk-GB] How to map new housing?

2019-03-10 Thread Donald Noble
Dave,

As others have pointed out there is no particular way to do this, but I
find that cycling round the roads with a helmet mounted video camera,
speaking out the road names/house numbers as I go past. Often it takes a
few visits to get everything correct, but even if it is not perfect it can
still be helpful.

The advantage I find with video is you get more context than still images.
However I sometimes also use still images to try and triangulate the
positions of parts I can't access, or upload to Mapillary to allow others
to use them for other purposes.

For building outlines, I usually just estimate the size based on the number
of houses and the length of road from the GPS traces, offsetting back from
the road by eye. I tend to draw simple boxes, rather than try and be too
accurate. Once new imagery is available (every year or so), the size/shape
can be tweaked.

Hope this helps,
Donald

On Fri, 8 Mar 2019 at 10:37 Dave Abbott  wrote:

> Hi,
>
> I'm quite new to OSM, and am wondering how I might go about mapping new
> housing plots in my area.
>
> In general, there is nothing on the imagery - I know I can walk the new
> streets and map them with GPS - but how to go about mapping the new
> buildings?
>
> Is there a guide I can look at?
>
> TIA,
>
> Dave Abbott
>
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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread Lester Caine

On 08/03/2019 15:15, Brian Prangle wrote:
Whilst being immensely useful, Planning Applications are usually heavily 
annotated as Copyright,  both Crown Copyright and Developer Copyright- 
so even if the developer gives you permission you're still lumbered with 
OS encumbrance


The site plans may use OS material, but the developers drawings don't 
and in most cases even OS don't have the new roads and other details so 
permission to use is all that IS needed.


--
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-
Contact - https://lsces.co.uk/wiki/?page=contact
L.S.Caine Electronic Services - https://lsces.co.uk
EnquirySolve - https://enquirysolve.com/
Model Engineers Digital Workshop - https://medw.co.uk
Rainbow Digital Media - https://rainbowdigitalmedia.co.uk

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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread Brian Prangle
Whilst being immensely useful, Planning Applications are usually heavily
annotated as Copyright,  both Crown Copyright and Developer Copyright- so
even if the developer gives you permission you're still lumbered with OS
encumbrance

Regards

Brian

On Fri, 8 Mar 2019 at 11:24, Lester Caine  wrote:

> On 08/03/2019 10:35, Dave Abbott wrote:
> > I'm quite new to OSM, and am wondering how I might go about mapping new
> > housing plots in my area.
> >
> > In general, there is nothing on the imagery - I know I can walk the new
> > streets and map them with GPS - but how to go about mapping the new
> > buildings?
> >
> > Is there a guide I can look at?
>
> One source of information that I use is the planning application.
> Although it may also be necessary to ask the builders if you can use it
> directly. It's a useful background on josm ... when combined with a GPS
> walk around.
>
> --
> Lester Caine - G8HFL
> -
> Contact - https://lsces.co.uk/wiki/?page=contact
> L.S.Caine Electronic Services - https://lsces.co.uk
> EnquirySolve - https://enquirysolve.com/
> Model Engineers Digital Workshop - https://medw.co.uk
> Rainbow Digital Media - https://rainbowdigitalmedia.co.uk
>
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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread Philip Barnes
Field boundaries are often retained (development usually takes a field
at a time), look out for these. They are a useful guide to aligning
stuff with old aerial imagery.
Phil (trigpoint)

On Fri, 2019-03-08 at 14:38 +, Dave F via Talk-GB wrote:
> Hi
> 
> Welcome to OSM.
> 
> 
> 
> Mapping new developments is trickier without aerial imagery, but
> there's quite a bit you can do to make it more accurate than
> guesswork.
> 
> 
> 
> 
>   if you're mapping the roads use the GPS to walk down their
> centre, if it's safe to do so, of course)
>   Takes *lots* of photos. Videos are even better
>   If there is something already mapped in OSM Field Papers may
> help: https://wiki.openstreetmap.org/wiki/Field_Papers
>   I found that many new estates have a certain amount of
> conformity. Try offsetting a copy of the road centre lines to
> use as guidelines ensuring buildings equidistant from the
> road
> & the same width
> 
> To map larger buildings you can walk walk around it taking
>   waypoints with a GPS whenever you're in line with the plane of
> a
>   building's side. These points can then have a way drawn with
> their
>   opposite number to create the buildings outline. Make sure
> you're
>   far enough away from it to avoid GPS interference.  
> 
> 
> 
> Cheers
> 
> DaveF   
> 
> 
> 
> 
> 
> 
> 
> On 08/03/2019 10:35, Dave Abbott wrote:
> 
> 
> 
> 
> >   Hi,
> > I'm quite new to OSM, and am wondering how I might go about mapping
> > newhousing plots in my area.
> > In general, there is nothing on the imagery - I know I can walk the
> > newstreets and map them with GPS - but how to go about mapping the
> > newbuildings?
> > Is there a guide I can look at?
> > TIA,
> > Dave Abbott
> > 
> >   
> > 
> >   
> >   
> > 
> >   ___Talk-GB
> > mailing listtalk...@openstreetmap.org
> > https://lists.openstreetmap.org/listinfo/talk-gb
> > 
> > 
> 
> 
> 
>   
> 
> ___Talk-GB mailing 
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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread Dave F via Talk-GB

Hi
Welcome to OSM.

Mapping new developments is trickier without aerial imagery, but there's 
quite a bit you can do to make it more accurate than guesswork.


 * if you're mapping the roads use the GPS to walk down their centre,
   if it's safe to do so, of course)
 * Takes *lots* of photos. Videos are even better
 * If there is something already mapped in OSM Field Papers may help:
   https://wiki.openstreetmap.org/wiki/Field_Papers
 * I found that many new estates have a certain amount of conformity.
   Try offsetting a copy of the road centre lines to use as guidelines
   ensuring buildings equidistant from the road & the same width

To map larger buildings you can walk walk around it taking waypoints 
with a GPS whenever you're in line with the plane of a building's side. 
These points can then have a way drawn with their opposite number to 
create the buildings outline. Make sure you're far enough away from it 
to avoid GPS interference.


Cheers
DaveF



On 08/03/2019 10:35, Dave Abbott wrote:

Hi,

I'm quite new to OSM, and am wondering how I might go about mapping new
housing plots in my area.

In general, there is nothing on the imagery - I know I can walk the new
streets and map them with GPS - but how to go about mapping the new
buildings?

Is there a guide I can look at?

TIA,

Dave Abbott



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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread David Woolley

On 08/03/2019 11:23, Lester Caine wrote:


One source of information that I use is the planning application. 
Although it may also be necessary to ask the builders if you can use it 
directly. It's a useful background on josm ... when combined with a GPS 
walk around.


Planning applications are made available to the the public on the strict 
understanding that they may only be used for planning purpose.  They 
generally contain maps which, if from digital sources, have a condition 
that all copies be destroyed after a year.


Generally I would say that planning applications are not an acceptable 
source.


Personally I think people put too much emphasis on building outlines, 
probably because they can be armchair mapped.  Having housenumbers is, 
in my view, more useful, but less common.


Unless you can convince the developer to contribute them, I would 
suggest that only old fashioned triangulation, or hiring a professional 
drone operator/commissioning aerial photography, are going to give you 
good information.


I suppose you could laser scan, but the hire fees will be excessive.

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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread Brian Prangle
If you've got no imagery - basically you're stuffed for building outlines
except for guesswork ( I tag these as "visual estimate" - sound a bit
better). Digital Globe Imagery tends to have more new housing estates than
other imagery sets .If you've surveyed an area just add address nodes

Regards

Brian

On Fri, 8 Mar 2019 at 10:37, Dave Abbott 
wrote:

> Hi,
>
> I'm quite new to OSM, and am wondering how I might go about mapping new
> housing plots in my area.
>
> In general, there is nothing on the imagery - I know I can walk the new
> streets and map them with GPS - but how to go about mapping the new
> buildings?
>
> Is there a guide I can look at?
>
> TIA,
>
> Dave Abbott
>
> ___
> Talk-GB mailing list
> Talk-GB@openstreetmap.org
> https://lists.openstreetmap.org/listinfo/talk-gb
>
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Re: [Talk-GB] How to map new housing?

2019-03-08 Thread phil
Hi Dave
In general new housing is a bit of a best guess and a bit of creative use of 
gps traces. I use techniques such as walk the roads and cross over, or put a 
wiggle in, when I am level with the ends of the building.  

I tend to use those traces locally in josm as they will be a bit odd to someone 
else.

HTH Phil (trigpoint)

On Friday, 8 March 2019, Dave Abbott wrote:
> Hi,
> 
> I'm quite new to OSM, and am wondering how I might go about mapping new
> housing plots in my area.
> 
> In general, there is nothing on the imagery - I know I can walk the new
> streets and map them with GPS - but how to go about mapping the new
> buildings?
> 
> Is there a guide I can look at?
> 
> TIA,
> 
> Dave Abbott
> 
>

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[Talk-GB] How to map new housing?

2019-03-08 Thread Dave Abbott
Hi,

I'm quite new to OSM, and am wondering how I might go about mapping new
housing plots in my area.

In general, there is nothing on the imagery - I know I can walk the new
streets and map them with GPS - but how to go about mapping the new
buildings?

Is there a guide I can look at?

TIA,

Dave Abbott

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