[OSM-talk] New Forest mapping weekend... [Q about TomTom recording]

[Joerg Ostertag (OSM Munich/Germany)]

On Sunday 06 August 2006 17:21, matthew-osm at newtoncomputing.co.uk wrote:
> On Sat, Aug 05, 2006 at 11:52:49PM +0100, Dean Earley wrote:
> > Nick Whitelegg wrote:
> > >The idea will be to try and complete OSM mapping of the New Forest
> > >national park between Southampton and Bournemouth in the south of
> > > England over two weekends (I have already done about 25-33%, perhaps,
> > > myself). Since it's largely off road it'll be aimed at walkers and
> > > cyclists, though car drivers could still do some useful surveying of
> > > the towns and villages - Lyndhurst, Brockenhurst, Lymington etc.
> >
> > That weekend is clear for me although I'd probably do a lot of road
> > mapping (My cars GPS is FAR more accurate than my handheld.. :)
>
> That raises an interesting question, actually.
>
> We have tried a TomTom here*, and are very suspicious that it actually
> locks the points it records to its own internal maps, rather than recording
> the actual GPS co-ordinates.


I have tried the TomTom save Track add on here. And it definitely looks like 
it locks to streets before saving to the trackfile.

> Can anyone confirm or deny this? If it is correct, then it could mean a lot
> of data is actually "invalid", being indirectly copied of other maps.

-

Joerg