This mod was fun when you driving a realistic train, But it can be some more improvements:

1. An "Easy Driving" mode
   For now, the trains control has two gauges: Throttle and Brakes, But some players think this was a little bit too complicated, They wants a simplified mode to control the train...
   My suggestion is this: Making train has only Throttle gauge on it's gui, When Easy Driving mode was set to on, When trains throttle up, It will slowly going up at designated speed (No more spinning wheels) and maintain on it (Train will not going faster and faster) And when throttle down, Train will auto braking and slow down to the designated speed (No more overrun the station)...
   Finally, Making this feature been toggle-able via config file, If player like or dislike it, They can switch back to the normal control mode from here...

2. Rail Augments needs gui:
   The rail augments is very difficultly to figured out how to set them up now, Because it's lacks of information to showing the current status , Also... can only been toggled by redstone signal was a bad idea.... (Why don't just making a gui and set the current status to tell the train how to do?)

3. Cross-mod Supports:
   It's seem this mod was not support other mod that using minecart api (Such as Railcraft) , So we can't set up some signal network to detect and maintaining tracking the train... Maybe some cross-mod support will coming in handy...

4. Entities on flat cars:
   At now, Flat cars just like other boxcar (Riding on and stored some items), This was a little wasting the flat car's purpose (It's was design for transport large objects that too big for boxcars), And at now, We can only using whistles to let villagers boarding the train, Must has some other ways to let some non-villager entities (Such like other vehicles from other mods) boarding the train...

1. I think there won't be an "easy driving mode" of that kind just because the current system is already incredibly unrealistic and easy to use. I mean even a banana would be able to learn how to use the current system. There is a much more realistic system planned but for that case the current one can be toggled using the config.

2. That's a nice idea but for now you can just take a look at the wiki because it explains every argument in detail.

3. We already have an addon made by CSX8600 which adds signals for train detection. But I think we could add more support for stuff like that in the future.

4. That's already possible. You can put the entity on a leash and then right-click the freight car with it!

I know you can mount the entity on the freight cars, But for the entities that cannot using leashes?
(Ex: Hostile mobs, Other mods entities, Mutiblock entities like cars, trucks, etc... )

To make the tracks efficiently, i hope those machines have entrances and exports with clear sign.

Closing as won't fix