./osmosis-0.41/bin/osmosis \
   --read-pbf europe.osm.pbf \
   --tf accept-ways railway=* \
   --tf reject-relations \
   --used-node \
   --write-xml railway-ways.osm

./osmosis-0.41/bin/osmosis \
   --read-pbf europe.osm.pbf \
   --tf accept-nodes railway=* \
   --tf reject-ways \
   --tf reject-relations \
   --write-xml railway-nodes.osm

./osmosis-0.41/bin/osmosis \
   --read-xml railway-ways.osm \
   --read-xml railway-nodes.osm \
   --merge \
   --write-xml railways.osm