FW: Landsat ? (was:Re: [Openstreetmap] New roads appearingwithoutGPS tracks)

[Andy Robinson]

Just van den Broecke's site has an excellent utility for comparing the lain
down OSM line segments position with the Google maps api layer. For the
areas I have lain down gps tracks and then edited nodes and line segments I
have found very high agreement between the two, except where newer roads or
road adjustments have taken place since the last update for the underlying
google map. But whatever you do, don't try and derive any osm nodes and
segments from using it.

http://www.geoskating.com/gmap/osm-gmap.html

Andy


>
>By comparison, does anyone know how accurate the roads on Google maps are?
>
>Etienne