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=55.91394lon=-130.02186zoom=16layers=B000FTFT
[2]
http://maps.google.com/maps?q=vancouverie=UTF8hq=hnear=Vancouver,+Greater+Vancouver+Regional+District,+British+Columbia,+Canadall=55.913139,-130.017636spn=0.004269,0.013937t=hz=17
Adam
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