Caption: Interior of a brand-new TTC "Toronto Rocket" subway car, built by Bombardier in Thunder Bay. The entire train is semi-permanently coupled, with open walkways at the ends of each car to increase passenger capacity allow movement inside the train. The photographer is looking from the end car 5411, through 5412, 5413, etc to the other end car at the opposite end of the train, 5416. Also, the photographer doesn't recommend running from end to end while the train is in motion.