Chief conductors are responsible for the safe performance of all operational tasks on board of passenger trains outside the drivers cab, such as supervising safe opening and closing of the train's doors. They supervise and ensure the continuous care for the safety of passengers, especially in the case of technical incidents and emergency situations. They ensure the operational communication to the driver and to traffic control staff as defined in operational regulations. In case of several staff members attending the train, they supervise the team of conductors. They also carry out commercial activities such as ticket control and selling, and provide support and information to passengers as well as gastronomic services.