This is a 1:57 scale LEGO model of the O-Train, a light passenger train (Bombardier Talent BR643 DMU) that provides commuter service to the city of Ottawa.
I built this model for ParLUGment‘s Ottawa themed Winterlude 2005 train layout. I developed a new technique for close coupling the cars using shared bogies. It uses an elastic to keep the cars together while the train is straight, but allows them to separate when it is traveling around a corner. This technique is illustrated in the photos below.