Wonder how accurate this is? As an experiment, I tried extracting part of the old Balkan route that ran down to the coast at Dubrovnik. I previously tried this with the Poehali maps but these were really out. Open Street is the only TMS/WMS which shows the course of the abandoned railway but on doing the extraction into Trainz the mapping was off by a considerable amount. Several sections of water were displaying halfway up the adjacent hillside. I know it is possible to "nudge" the DEM to compensate for this - if you know exactly how much offset is required on each axis - but I had hoped Open Street Mapping would be seamless on top of the DEM.
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