Welcome aboard to the wonderful world of RailWorks.
If you're looking for more North American style/based routes, you might be interested in some of Rich Garber's routes too. Though they are more on the freight operations side of things, he does great work. Here's his main site:
http://www.allaboardrails.com/Or, you can also find most of his routes for RailWorks on Steam as well;
http://store.steampowered.com/app/24055/http://store.steampowered.com/app/24092/http://store.steampowered.com/app/24029/http://store.steampowered.com/app/24028/Also, depending on the route and scenario, there are also some functioning cranes that you operate and can see loading and unloading container cars.
When loading a Steam-Engine's Tender-car from a Coal-Chute refueling point, you will see the coal coming out of the chute and filling the tender-car.
Also, when loading or unloading coal cars, you will see the level of the coal in the hopper rising or lowering accordingly.
Some routes also have working turn-tables in which you can drive your engine on, then rotate the turn-table to change to a different track or direction.
And of course when picking up passengers at platforms you'll see them walking along the platforms, entering and disembarking from the train.
But yes, RailWorks is still lacking in this area a bit, but hopefully in time we will see more "interactive" things like this added.
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If you're interested and open-minded to try some fictional-based routes & scenarios, which may be "non-prototypical" in some ways, feel welcome to check out my own site at:
http://www.rryard.com/ In the routes & scenarios section there I offer several addons, most of them for free. And even though my projects tend to be fictional-based, I try my best to make my projects of good quality, functional and enjoyable. Most of my addons will also work with default-installation of RailWorks 3 (Train-Simulator 2012), unless otherwise noted.
You'll find most people in the community to be a friendly and helpful bunch.
Best wishes,
--Don.