Posted by on April 2, 2014 
I always appreciate your photos and accurate RR details in South Africa (I was there in 2011). In my career I also worked upon herbicide weed spraying trains for 4 summers in USA. But I assume in your photo no spraying is being done on the rock ballast -- with no trace (yet) of vegetation?!
Posted by SAR Connecta on April 3, 2014 
Thanks Steve. I think this SWC set was being moved to another location in this photo.
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