I actually see the trains most often when I'm walking in Larry Moore Park in the late afternoon. They run above the park about 4:45 PM. If I'm far into the park at the right time I can often get a shot. If I'm not as close as I'd like to be when I hear the whistle blow from Templeton, I hurry quickly to the river's edge to see if I can beat the train to the place with the clearest view. Even then I have to use my zoom, since the train is on the other side of the river.
One day I got really lucky. I heard the train pull in when I was right by the station. I ran to the sidewalk next to the tracks and got this video just as the train was leaving to go north. It's a bit shaky at the beginning because I was running.
That same day I took this picture as passengers were boarding before the train pulled away. Then I turned it into a postcard and a poster on Zazzle.