[Talk-ca] GPS inaccuracy

[James Ewen]

This isn't just an issue for OSM...

http://www.bbc.co.uk/news/world-asia-20442487

James
VE6SRV

On Wed, Nov 21, 2012 at 3:35 PM, Daniel Begin <jfd553 at hotmail.com> wrote:
> Tom wrote: " I'm getting the feeling that, short of a definitive survey, a
> good map is a matter of careful judgement."
>
> I was involved in map business for almost 30 years and I met just a few
> people that could have said that in such simple terms!
>
> Thank you
> Daniel
>
> -----Original Message-----
> From: Tom Taylor [mailto:tom.taylor.stds at gmail.com]
> Sent: November-20-12 22:42
> To: talk-ca at openstreetmap.org
> Subject: Re: [Talk-ca] GPS inaccuracy
>
> I redid some of my survey yesterday following Pierre and Bernie's
> suggestions. The results are more reasonable. After averaging, some of
> my points were showing error of +/- 2 m or less.
>
> In working on the new trace, I learned to shift the Bing images as
> necessary. Then I found that some buildings fit Bing while neighbours
> did not. I'm getting the feeling that, short of a definitive survey, a
> good map is a matter of careful judgement.
>
> I suspect at this point I should be writing on the Newbies list rather
> than this one. Thanks for your tolerance to this point. Certainly I'll
> still be monitoring this list.
>
> Tom taylor
>
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-- 
James
VE6SRV