Originally posted by skolkmeier Thank you. I'll give both suggestions a try. I didn't know about the model railroad when we went to the park, but now that I do, I'll go back sometime and take more pictures. The fill flash sounds like a good thing to try.
Fill-in flash was also my first idea, a camera with a build-in flash has an edge here,
but
...as you intend going back (& if wanting alternative to flash...),it yields the option to plan and avoid the sunniest part of the day - avoid anything around noontime - or choose to go on a less sunny day (clouds might be your friend in this case)...
Contrast will be less extreme (but on the other hand you might need to increase ISO... as longer shutter won't work well if train is moving) .
I would also underexpose -1EV...-2EV , typically the underexposed part is easier to correct than overexposed plain white area's...