Always be careful when travelling by train, because sometimes the front (voor) and back (achter) half of the train will be going to different destinations and will therefore split at some point in your journey. Make sure that you are in the correct half by checking the platform indicator boards or by asking someone. The conductor of the train will announce over the PA system which train carriages (the number is displayed above the door of the compartment) will go in a specific direction before reaching the station where the train splits.