 One of the main consequences was the dividing up of various suburban systems which had been part of the "Estrada de Ferro Central do Brasil", the closure of unprofitable lines and the absorption of some sections into other railways.With the construction and later doubling of the "Presidente Dutra" motorway between São Paulo and Rio de Janeiro in 1967 (competing with its most lucrative line), the railway ceased to be a major player, a process aggravated by inefficient administration in the RFFSA and the fact that railway transport had ceased to be a priority of the federal government.During the petroleum crisis of 1973 there were attempts to modernize passenger transport; like the use of Ganz-Mavag locomotives – the so-called Hungarian train – between 1974 and 1978 in a failed attempt to develop a fast connection between Rio and São Paulo.