Are the Half-Fare travelcard and GA (general travelcard) valid? Yes, the Half-Fare Card and GA travelcard are valid on all our lines. Related articles I have a Swiss Travel Pass / General Abonnement, do I need to buy a ticket? Are there any reduced rates for seniors or students? From what age do children have to pay? Can I buy my ticket on site? Are you required to hold a ticket on all MOB - GoldenPass trains?