Yes, but some train routes have penalty fares in operation which means if you are caught without a ticket you have to pay a penalty. If this is the case, it would be clearly signed at the station.
For UK trains, eurostar, European train tickets and rail passes including Italy and Amtrak tickets and rail passes for the USA try www.budgettraintickets.com
Just go to the left, and you'll see a man struglling to push a heavy paggage. Click on him, and your character will ask if the man (Thomas Eddison), needs help, and Thomas will say yes. Build a ramp...