total track length: 5668.6km (1px matches approx 20m)
slitscanning over satellite imaginary along a (spline-interpolated) GPS track file
aerial image source: LANDSAT7 Global Mosaic, Courtesy: NASA/JPL-Caltech (public domain)
original track source © OpenStreetMap contributors (CC-BY-SA)
Michael Aschauer, 2010
Michael Aschauer, 2011