[Talk-ca] Tiger positioning not quite correct?

[Apollinaris Schoell]

usually tiger is wrong, yahoo resolution is not very good but still good enough to confirm that the tiger roads don't match at all.

On 19 Feb 2010, at 19:26 , Adam Dunn wrote:

> Working on NRN import on BC/Alaska border, in the town of Stewart, and it looks like there is a mismatch in positions between TIGER and NRN. Take a look at Highway 37A as it crosses the border in [1]. See that there is no road to connect to in Alaska. Now take a look at how Google maps has it in [2]. Hwy 37A should connect to International Street (makes sense, given the name). Google maps agrees with NRN to within a couple meters, and Google maps agrees with TIGER to within a couple *hundred* meters. Of course we can't use Google as a data source, so we need someone to go there with GPS.
> 
> [1] http://www.openstreetmap.org/?lat=55.91394&lon=-130.02186&zoom=16&layers=B000FTFT
> [2] http://maps.google.com/maps?q=vancouver&ie=UTF8&hq=&hnear=Vancouver,+Greater+Vancouver+Regional+District,+British+Columbia,+Canada&ll=55.913139,-130.017636&spn=0.004269,0.013937&t=h&z=17
> 
> Adam
> _______________________________________________
> Talk-ca mailing list
> Talk-ca at openstreetmap.org
> http://lists.openstreetmap.org/listinfo/talk-ca