Cinematique Instruments has released Clashing Rails, the January Edition of Klang - their Free Series of Instruments for Kontakt.
They say about it:
A station is a wide space that creates a great sound scenery. You hear big locomotives dragging along tracks, wagons bouncing over switches and brakes squeaking - so Jumpel captured some impressions from this scenery with his field recorder, assembled it in Kontakt and added an old construction compressor that was standing beside some old tracks. The result is 'Clashing Rails' - check it out.