 While the main base of the union was workers for the public railway system, it accepted other transport workers, including bus workers, people working for private and municipal transport systems and workers in shipping.In 1995, it was renamed as the Swiss Railway and Transport Staff Association, to emphasise the role of these other workers, then in 2009 it became the "Union of Transport Workers".The union was led by its general secretary until 1946, and since then by its president.