On Track Along The Line

Today at Friedrichstraße Station I saw the above  .Created on a wall where the escalator goes down to the S1 and S2 line it looks so effective .Not wall art in the usual sense.it's a combination plus photography. I called to make enquiries and the S-Bahn were so helpful .This is relatively new and they told me of a scheme they've started to  promote art & colour  in the stations and on old signal boxes . The examples they showed me are are stunning and involve several artists , .So come what may , I know I'll be riding the track and blipping ....