Update:

Totally addicting, however, chaos mode is ridiculous! I have all my towns but cant seem to complete the chaos modes because some trains come out at the same time as other trains are going in (the same track) so of course they will collide every time that happens. How is that possible to even accomplish?!

Update: they have made it so impossibly difficult that it isnt fun anymore! The app now crashes constantly and the ads are endless!

Anita Run about Train Conductor World, v1.3.2