[OSM-talk] Suggestion more complete mapping verifactiion

[Robert (Jamie) Munro]

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Martijn van Oosterhout wrote:
> On 9/18/07, D Tucny <d at tucny.com> wrote:
>> I've been down Heddon Street, not with a GPS, but, I've been there, eaten
>> there, drank there etc... from what I remember it's quite a small 'alley'
>> with reasonably tall buildings on each side with little natural light making
>> it's way in...
> 
> Oh fer crying out loud. If you know the street is there and you know
> the name, just add your best guess. From the sounds of it it's going
> to at least as good as any GPS traces.

With the aerial photography, it should be no problem for most new users
to add any missing streets they spot with potlatch in no time.

> People place far too much emphasis on the accuracy of their GPS. Any
> car going down that street is going to have exactly the same problem
> and the navigator will compensate for it. The map is never going to be
> accurate to the metre level anyway, so don't be so pedantic.
> Estimating distances from memory works well in many cases.
> 
> It more important that the road be there than that it be millimetre
> accurate. At some point in the future someone may get a trace, then
> someone can fix it.

Here here. Completeness first. Accuracy second.

Something I'd like to see from mapping applications like gosmore is for
them to automatically record a GPS trace whenever they notice that the
road is inaccurate - i.e. it's further away on the map than the HDOP
reading from the GPS. That way, we could use those traces to make the
roads incrementally more accurate.

Robert (Jamie) Munro
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