It takes a lot to laugh, it takes a train to cry

I was trying to blip this morning the trains passing by while walking the pedestrian way beside the tracks. By mistake the camera slipped (luckily still attached to my wrist) just as I was taking a picture. The long exposure produced this strange play of railway lights. I thought it was the most interesting of my blip candidates of the today. Se here you have it. Hope you like it as well.