[Talk-us] Rail westerly

[Dave Mansfield]

That brings up a good question. What datum is used by OSM? I would assume it's WGS 84. NAD 83 is within about a meter of WGS 84. That’s closer than the GPS units most of us have so would not cause much of an error if any. NAD 27 on the other hand could be off by as much as 180 meters.

Dave

-----Original Message-----
From: stevea [mailto:steveaOSM at softworkers.com] 
Sent: Wednesday, December 31, 2014 2:24 PM
To: talk-us at openstreetmap.org
Cc: imports-us at openstreetmap.org
Subject: Re: [Talk-us] Rail westerly

I examine these in JOSM right now.  First they need to be unzipped, and it looks like the (provided on that web page) PRJ file to change from WGS 84 (default) to either NAD 27 or 83 projection is required. 
I haven't done that to these data in the instant case, but I've fiddled these before and I think it is doable.

SteveA
California

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