Melbourne (Australia) Parallel Train

While traveling on the Melbourne Metro into downtown, we stopped at Flinders Street Station, where many of the incoming trains converge. They all continue to Southern Cross Station before going their separate ways.
As we pulled out of Flinders Street, I noticed a nearby train traveling at almost the same speed. It took me a moment to grab my camera and put it on time-lapse, but even so it really captured my attention. In fact, I later wished I had NOT used the time-lapse and captured it all in real time!