Geograph - photograph every grid square

DB Schenker class 67's 67016 and 67020 travel northbound with a railhead treatment train. These trains are part of the war against 'leaves on the track' and other conditions that reduce grip for trains during the autumn and winter period. There's no sign of spray from the wagons so I guess this is an early season test run. Using two locomotives allows for a swift reversal of the train as and when required - important as these trains have to fit in between the passenger services they are preparing the rail surfaces for (lightweight electric units are particularly susceptible to wheelslip - this lines class 319's especially!)